메뉴 건너뛰기




Volumn 60, Issue 3, 2004, Pages 607-618

Preparation of N-unsubstituted β-ketoamides by Rhodococcus rhodochrous-catalysed hydration of β-ketonitriles

Author keywords

Amido ketones; Enzyme inhibitors; Microbial reactions; Rhodococcus rhodochrous; Tautomerism

Indexed keywords

2 BENZOYLBUTANAMIDE; 3 (1 METHYLINDOL 3 YL) 3 OXOPROPANAMIDE; 3 (2 FURYL) 3 OXOPROPANAMIDE; 3 (3 CHLOROPHENYL) 3 OXOPROPANAMIDE; 3 (3 FURYL) 3 OXOPROPANAMIDE; 3 (3 METHYLPHENYL) 3 OXOPROPANAMIDE; 3 (3,4 DICHLOROPHENYL) 3 OXOPROPANAMIDE; 3 (4 CHLOROPHENYL) 3 OXOPROPANAMIDE; 3 (4 METHOXYPHENYL) 3 OXOPROPANAMIDE; 3 (4 METHYLPHENYL) 3 OXOPROPANAMIDE; 3 OXO 2 PHENYLBUTANAMIDE; 3 OXO 3 (2 THIENYL)PROPANAMIDE; 3 OXO 3 (3 PYRIDYL)PROPANAMIDE; 3 OXO 3 PHENYLPROPANAMIDE; 3 OXO 3 [(3 TRIFLUOROMETHYL)PHENYL]PROPANAMIDE; 3 OXOHEXANAMIDE; 4 (1 METHYLPYRROL 2 YL)METHYL 3 OXOBUTANAMIDE; 4,4 DIMETHYL 3 OXOPENTANAMIDE; AMIDASE; AMIDE; NITRILE; NITRILE HYDRATASE; PHOSPHORAMIDIC ACID DERIVATIVE; UNCLASSIFIED DRUG;

EID: 0347595454     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tet.2003.10.096     Document Type: Article
Times cited : (26)

References (87)
  • 14
    • 0030605913 scopus 로고    scopus 로고
    • Preparation of β-ketoamides: (a) Kashima C., Fukuchi I., Takahashi K., Hosomi A. Tetrahedron. 52:1996;10335-10346 (b) Cossy J., Belotti D., Bouzide A., Thellend A. Bull. Soc. Chim. Fr. 131:1994;723-729. and references therein (c) Pak C.S., Yang H.C., Choi E.B. Synthesis. 1992;1213-1214 (d) Cossy J., Thellend A. Synthesis. 1989;753-755 (e) Cossy J., Belotti D., Thellend A., Pete J.P. Synthesis. 1988;720-721. and references therein (f) Sato M., Ogasawara H., Komatsu S., Kato T. Chem. Pharm. Bull. 32:1984;3848-3856 (g) Colau R., Viel C. Bull. Soc. Chim. Fr. Vol. II:1979;362-365 (h) Hauser C.R., Eby C.J. J. Am. Chem. Soc. 79:1957;725-727.
    • (1996) Tetrahedron , vol.52 , pp. 10335-10346
    • Kashima, C.1    Fukuchi, I.2    Takahashi, K.3    Hosomi, A.4
  • 15
    • 0000751473 scopus 로고
    • Preparation of β-ketoamides: (a) Kashima C., Fukuchi I., Takahashi K., Hosomi A. Tetrahedron. 52:1996;10335-10346 (b) Cossy J., Belotti D., Bouzide A., Thellend A. Bull. Soc. Chim. Fr. 131:1994;723-729. and references therein (c) Pak C.S., Yang H.C., Choi E.B. Synthesis. 1992;1213-1214 (d) Cossy J., Thellend A. Synthesis. 1989;753-755 (e) Cossy J., Belotti D., Thellend A., Pete J.P. Synthesis. 1988;720-721. and references therein (f) Sato M., Ogasawara H., Komatsu S., Kato T. Chem. Pharm. Bull. 32:1984;3848-3856 (g) Colau R., Viel C. Bull. Soc. Chim. Fr. Vol. II:1979;362-365 (h) Hauser C.R., Eby C.J. J. Am. Chem. Soc. 79:1957;725-727.
    • (1994) Bull. Soc. Chim. Fr. , vol.131 , pp. 723-729
    • Cossy, J.1    Belotti, D.2    Bouzide, A.3    Thellend, A.4
  • 16
    • 0026736879 scopus 로고
    • Preparation of β-ketoamides: (a) Kashima C., Fukuchi I., Takahashi K., Hosomi A. Tetrahedron. 52:1996;10335-10346 (b) Cossy J., Belotti D., Bouzide A., Thellend A. Bull. Soc. Chim. Fr. 131:1994;723-729. and references therein (c) Pak C.S., Yang H.C., Choi E.B. Synthesis. 1992;1213-1214 (d) Cossy J., Thellend A. Synthesis. 1989;753-755 (e) Cossy J., Belotti D., Thellend A., Pete J.P. Synthesis. 1988;720-721. and references therein (f) Sato M., Ogasawara H., Komatsu S., Kato T. Chem. Pharm. Bull. 32:1984;3848-3856 (g) Colau R., Viel C. Bull. Soc. Chim. Fr. Vol. II:1979;362-365 (h) Hauser C.R., Eby C.J. J. Am. Chem. Soc. 79:1957;725-727.
    • (1992) Synthesis , pp. 1213-1214
    • Pak, C.S.1    Yang, H.C.2    Choi, E.B.3
  • 17
    • 85081216860 scopus 로고
    • Preparation of β-ketoamides: (a) Kashima C., Fukuchi I., Takahashi K., Hosomi A. Tetrahedron. 52:1996;10335-10346 (b) Cossy J., Belotti D., Bouzide A., Thellend A. Bull. Soc. Chim. Fr. 131:1994;723-729. and references therein (c) Pak C.S., Yang H.C., Choi E.B. Synthesis. 1992;1213-1214 (d) Cossy J., Thellend A. Synthesis. 1989;753-755 (e) Cossy J., Belotti D., Thellend A., Pete J.P. Synthesis. 1988;720-721. and references therein (f) Sato M., Ogasawara H., Komatsu S., Kato T. Chem. Pharm. Bull. 32:1984;3848-3856 (g) Colau R., Viel C. Bull. Soc. Chim. Fr. Vol. II:1979;362-365 (h) Hauser C.R., Eby C.J. J. Am. Chem. Soc. 79:1957;725-727.
    • (1989) Synthesis , pp. 753-755
    • Cossy, J.1    Thellend, A.2
  • 18
    • 0001992008 scopus 로고
    • Preparation of β-ketoamides: (a) Kashima C., Fukuchi I., Takahashi K., Hosomi A. Tetrahedron. 52:1996;10335-10346 (b) Cossy J., Belotti D., Bouzide A., Thellend A. Bull. Soc. Chim. Fr. 131:1994;723-729. and references therein (c) Pak C.S., Yang H.C., Choi E.B. Synthesis. 1992;1213-1214 (d) Cossy J., Thellend A. Synthesis. 1989;753-755 (e) Cossy J., Belotti D., Thellend A., Pete J.P. Synthesis. 1988;720-721. and references therein (f) Sato M., Ogasawara H., Komatsu S., Kato T. Chem. Pharm. Bull. 32:1984;3848-3856 (g) Colau R., Viel C. Bull. Soc. Chim. Fr. Vol. II:1979;362-365 (h) Hauser C.R., Eby C.J. J. Am. Chem. Soc. 79:1957;725-727.
    • (1988) Synthesis , pp. 720-721
    • Cossy, J.1    Belotti, D.2    Thellend, A.3    Pete, J.P.4
  • 19
    • 85021606192 scopus 로고
    • Preparation of β-ketoamides: (a) Kashima C., Fukuchi I., Takahashi K., Hosomi A. Tetrahedron. 52:1996;10335-10346 (b) Cossy J., Belotti D., Bouzide A., Thellend A. Bull. Soc. Chim. Fr. 131:1994;723-729. and references therein (c) Pak C.S., Yang H.C., Choi E.B. Synthesis. 1992;1213-1214 (d) Cossy J., Thellend A. Synthesis. 1989;753-755 (e) Cossy J., Belotti D., Thellend A., Pete J.P. Synthesis. 1988;720-721. and references therein (f) Sato M., Ogasawara H., Komatsu S., Kato T. Chem. Pharm. Bull. 32:1984;3848-3856 (g) Colau R., Viel C. Bull. Soc. Chim. Fr. Vol. II:1979;362-365 (h) Hauser C.R., Eby C.J. J. Am. Chem. Soc. 79:1957;725-727.
    • (1984) Chem. Pharm. Bull. , vol.32 , pp. 3848-3856
    • Sato, M.1    Ogasawara, H.2    Komatsu, S.3    Kato, T.4
  • 20
    • 0348052261 scopus 로고
    • Preparation of β-ketoamides: (a) Kashima C., Fukuchi I., Takahashi K., Hosomi A. Tetrahedron. 52:1996;10335-10346 (b) Cossy J., Belotti D., Bouzide A., Thellend A. Bull. Soc. Chim. Fr. 131:1994;723-729. and references therein (c) Pak C.S., Yang H.C., Choi E.B. Synthesis. 1992;1213-1214 (d) Cossy J., Thellend A. Synthesis. 1989;753-755 (e) Cossy J., Belotti D., Thellend A., Pete J.P. Synthesis. 1988;720-721. and references therein (f) Sato M., Ogasawara H., Komatsu S., Kato T. Chem. Pharm. Bull. 32:1984;3848-3856 (g) Colau R., Viel C. Bull. Soc. Chim. Fr. Vol. II:1979;362-365 (h) Hauser C.R., Eby C.J. J. Am. Chem. Soc. 79:1957;725-727.
    • (1979) Bull. Soc. Chim. Fr. , vol.2 , pp. 362-365
    • Colau, R.1    Viel, C.2
  • 21
    • 0000454652 scopus 로고
    • Preparation of β-ketoamides: (a) Kashima C., Fukuchi I., Takahashi K., Hosomi A. Tetrahedron. 52:1996;10335-10346 (b) Cossy J., Belotti D., Bouzide A., Thellend A. Bull. Soc. Chim. Fr. 131:1994;723-729. and references therein (c) Pak C.S., Yang H.C., Choi E.B. Synthesis. 1992;1213-1214 (d) Cossy J., Thellend A. Synthesis. 1989;753-755 (e) Cossy J., Belotti D., Thellend A., Pete J.P. Synthesis. 1988;720-721. and references therein (f) Sato M., Ogasawara H., Komatsu S., Kato T. Chem. Pharm. Bull. 32:1984;3848-3856 (g) Colau R., Viel C. Bull. Soc. Chim. Fr. Vol. II:1979;362-365 (h) Hauser C.R., Eby C.J. J. Am. Chem. Soc. 79:1957;725-727.
    • (1957) J. Am. Chem. Soc. , vol.79 , pp. 725-727
    • Hauser, C.R.1    Eby, C.J.2
  • 24
    • 0037077798 scopus 로고    scopus 로고
    • It is usual, however, to adjust the biotransformation time of some racemic 2-substituted nitriles (conversion values of ca. 0.5) in order to obtain both amides and acids with high ee. See, for example: (a) Wang M.-X., Zhao S.-M. Tetrahedron: Asymmetry. 13:2002;1695-1702 (b) Wang M.-X., Feng G.-Q. Tetrahedron Lett. 41:2000;6501-6505 (c) Masutomo S.-., Inoue A., Kumagai K., Murai R., Mitsuda S. Biosci. Biotechnol. Biochem. 59:1995;720-722 (d) Gilligan T., Yamada H., Nagasawa T. Appl. Microbiol. Biotechnol. 39:1993;720-725 (e) Kakeya H., Sakai N., Sugai T., Ohta H. Tetrahedron Lett. 32:1991;1343-1346 (f) Bianchi D., Bosetti A., Cesti P., Franzosi G., Spezia S. Biotechnol. Lett. 13:1991;241-244.
    • (2002) Tetrahedron: Asymmetry , vol.13 , pp. 1695-1702
    • Wang, M.-X.1    Zhao, S.-M.2
  • 25
    • 0034641449 scopus 로고    scopus 로고
    • It is usual, however, to adjust the biotransformation time of some racemic 2-substituted nitriles (conversion values of ca. 0.5) in order to obtain both amides and acids with high ee. See, for example: (a) Wang M.-X., Zhao S.-M. Tetrahedron: Asymmetry. 13:2002;1695-1702 (b) Wang M.-X., Feng G.-Q. Tetrahedron Lett. 41:2000;6501-6505 (c) Masutomo S.-., Inoue A., Kumagai K., Murai R., Mitsuda S. Biosci. Biotechnol. Biochem. 59:1995;720-722 (d) Gilligan T., Yamada H., Nagasawa T. Appl. Microbiol. Biotechnol. 39:1993;720-725 (e) Kakeya H., Sakai N., Sugai T., Ohta H. Tetrahedron Lett. 32:1991;1343-1346 (f) Bianchi D., Bosetti A., Cesti P., Franzosi G., Spezia S. Biotechnol. Lett. 13:1991;241-244.
    • (2000) Tetrahedron Lett. , vol.41 , pp. 6501-6505
    • Wang, M.-X.1    Feng, G.-Q.2
  • 26
    • 85007838840 scopus 로고
    • It is usual, however, to adjust the biotransformation time of some racemic 2-substituted nitriles (conversion values of ca. 0.5) in order to obtain both amides and acids with high ee. See, for example: (a) Wang M.-X., Zhao S.-M. Tetrahedron: Asymmetry. 13:2002;1695-1702 (b) Wang M.-X., Feng G.-Q. Tetrahedron Lett. 41:2000;6501-6505 (c) Masutomo S.-., Inoue A., Kumagai K., Murai R., Mitsuda S. Biosci. Biotechnol. Biochem. 59:1995;720-722 (d) Gilligan T., Yamada H., Nagasawa T. Appl. Microbiol. Biotechnol. 39:1993;720-725 (e) Kakeya H., Sakai N., Sugai T., Ohta H. Tetrahedron Lett. 32:1991;1343-1346 (f) Bianchi D., Bosetti A., Cesti P., Franzosi G., Spezia S. Biotechnol. Lett. 13:1991;241-244.
    • (1995) Biosci. Biotechnol. Biochem. , vol.59 , pp. 720-722
    • Masutomo, S.1    Inoue, A.2    Kumagai, K.3    Murai, R.4    Mitsuda, S.5
  • 27
    • 0027323052 scopus 로고
    • It is usual, however, to adjust the biotransformation time of some racemic 2-substituted nitriles (conversion values of ca. 0.5) in order to obtain both amides and acids with high ee. See, for example: (a) Wang M.-X., Zhao S.-M. Tetrahedron: Asymmetry. 13:2002;1695-1702 (b) Wang M.-X., Feng G.-Q. Tetrahedron Lett. 41:2000;6501-6505 (c) Masutomo S.-., Inoue A., Kumagai K., Murai R., Mitsuda S. Biosci. Biotechnol. Biochem. 59:1995;720-722 (d) Gilligan T., Yamada H., Nagasawa T. Appl. Microbiol. Biotechnol. 39:1993;720-725 (e) Kakeya H., Sakai N., Sugai T., Ohta H. Tetrahedron Lett. 32:1991;1343-1346 (f) Bianchi D., Bosetti A., Cesti P., Franzosi G., Spezia S. Biotechnol. Lett. 13:1991;241-244.
    • (1993) Appl. Microbiol. Biotechnol. , vol.39 , pp. 720-725
    • Gilligan, T.1    Yamada, H.2    Nagasawa, T.3
  • 28
    • 0026021192 scopus 로고
    • It is usual, however, to adjust the biotransformation time of some racemic 2-substituted nitriles (conversion values of ca. 0.5) in order to obtain both amides and acids with high ee. See, for example: (a) Wang M.-X., Zhao S.-M. Tetrahedron: Asymmetry. 13:2002;1695-1702 (b) Wang M.-X., Feng G.-Q. Tetrahedron Lett. 41:2000;6501-6505 (c) Masutomo S.-., Inoue A., Kumagai K., Murai R., Mitsuda S. Biosci. Biotechnol. Biochem. 59:1995;720-722 (d) Gilligan T., Yamada H., Nagasawa T. Appl. Microbiol. Biotechnol. 39:1993;720-725 (e) Kakeya H., Sakai N., Sugai T., Ohta H. Tetrahedron Lett. 32:1991;1343-1346 (f) Bianchi D., Bosetti A., Cesti P., Franzosi G., Spezia S. Biotechnol. Lett. 13:1991;241-244.
    • (1991) Tetrahedron Lett. , vol.32 , pp. 1343-1346
    • Kakeya, H.1    Sakai, N.2    Sugai, T.3    Ohta, H.4
  • 29
    • 0025856113 scopus 로고
    • It is usual, however, to adjust the biotransformation time of some racemic 2-substituted nitriles (conversion values of ca. 0.5) in order to obtain both amides and acids with high ee. See, for example: (a)
    • It is usual, however, to adjust the biotransformation time of some racemic 2-substituted nitriles (conversion values of ca. 0.5) in order to obtain both amides and acids with high ee. See, for example: (a) Wang M.-X., Zhao S.-M. Tetrahedron: Asymmetry. 13:2002;1695-1702 (b) Wang M.-X., Feng G.-Q. Tetrahedron Lett. 41:2000;6501-6505 (c) Masutomo S.-., Inoue A., Kumagai K., Murai R., Mitsuda S. Biosci. Biotechnol. Biochem. 59:1995;720-722 (d) Gilligan T., Yamada H., Nagasawa T. Appl. Microbiol. Biotechnol. 39:1993;720-725 (e) Kakeya H., Sakai N., Sugai T., Ohta H. Tetrahedron Lett. 32:1991;1343-1346 (f) Bianchi D., Bosetti A., Cesti P., Franzosi G., Spezia S. Biotechnol. Lett. 13:1991;241-244.
    • (1991) Biotechnol. Lett. , vol.13 , pp. 241-244
    • Bianchi, D.1    Bosetti, A.2    Cesti, P.3    Franzosi, G.4    Spezia, S.5
  • 43
    • 0017393718 scopus 로고
    • For example: (a) Linardi V.R., Dias J.C.T., Rosa C.A. FEMS Microbiol. Lett. 144:1996;67-71 (b) Harper D.B. Biochem. J. 165:1977;309-319.
    • (1977) Biochem. J. , vol.165 , pp. 309-319
    • Harper, D.B.1
  • 44
    • 21344496529 scopus 로고
    • This strain was previously classified as Brevibacterium sp. See:
    • This strain was previously classified as Brevibacterium sp. See: Briand D., Dubreucq E., Perrier V., Grimaud J., Galzy P. Microbios. 78:1994;205-214.
    • (1994) Microbios , vol.78 , pp. 205-214
    • Briand, D.1    Dubreucq, E.2    Perrier, V.3    Grimaud, J.4    Galzy, P.5
  • 49
    • 0041353807 scopus 로고    scopus 로고
    • (b) Ohta H. Chimia. 50:1996;434-436
    • (1996) Chimia , vol.50 , pp. 434-436
    • Ohta, H.1
  • 52
    • 85030932745 scopus 로고    scopus 로고
    • note
    • f, especially when R. rhodochrous was grown in the absence of DEPA. In no TLC plate was ketoacid 3 observed before ketoamide 2 appeared, which is a confirmation of the lack of nitrilase activity of this bacterium.
  • 53
    • 0003467672 scopus 로고
    • Wiley: New York
    • Although biotransformations were carried out at pH 8, it is known that β-ketocarboxylic acids experience decarboxylation under slightly basic conditions: March, J. Advanced Organic Chemistry. 4th ed. Wiley: New York, 1992, p. 629.
    • (1992) Advanced Organic Chemistry. 4th Ed. , pp. 629
    • March, J.1
  • 54
    • 85030928669 scopus 로고    scopus 로고
    • note
    • Ketone 4r was isolated from the supernatant after extracting 2r at pH 8 and further continuous extraction (40 °C, 8 h) at pH 6.
  • 55
    • 85030922995 scopus 로고    scopus 로고
    • note
    • 28c.
  • 56
    • 85030916877 scopus 로고    scopus 로고
    • note
    • We assume that the remaining 16% includes the formed β-ketoacid 3d and small losses during the work-up.
  • 57
    • 0001495202 scopus 로고
    • See for example: (a) Bunting J.W., Kanter J.P. J. Am. Chem. Soc. 115:1993;11705-11715 (b) Yamasaki K., Kajimoto O. Chem. Phys. Lett. 172:1990;271-274 (c) Kallury K.R., Krull U.J., Thompson M. J. Org. Chem. 53:1988;1320-1322 (d) Zheglova D.K., Aleksiev A.A., Kmetska G.G., Petrov G.N., Kol'tsov A.I. J. Org. Chem. USSR. 24:1988;1641-1643 (e) Mills S.G., Beak P. J. Org. Chem. 50:1985;1216-1224 (f) Billman J.H., Sojka S., Taylor P.R. J. Chem. Soc., Perkin Trans. 2. 1972;2034-2035 (g) Allen G., Dwek R.A. J. Chem. Soc. (B). 1966;161-163 (h) Burdett J.L., Rogers M.T. J. Am. Chem. Soc. 86:1964;2105-2109.
    • (1993) J. Am. Chem. Soc. , vol.115 , pp. 11705-11715
    • Bunting, J.W.1    Kanter, J.P.2
  • 58
    • 0346148736 scopus 로고
    • See for example: (a) Bunting J.W., Kanter J.P. J. Am. Chem. Soc. 115:1993;11705-11715 (b) Yamasaki K., Kajimoto O. Chem. Phys. Lett. 172:1990;271-274 (c) Kallury K.R., Krull U.J., Thompson M. J. Org. Chem. 53:1988;1320-1322 (d) Zheglova D.K., Aleksiev A.A., Kmetska G.G., Petrov G.N., Kol'tsov A.I. J. Org. Chem. USSR. 24:1988;1641-1643 (e) Mills S.G., Beak P. J. Org. Chem. 50:1985;1216-1224 (f) Billman J.H., Sojka S., Taylor P.R. J. Chem. Soc., Perkin Trans. 2. 1972;2034-2035 (g) Allen G., Dwek R.A. J. Chem. Soc. (B). 1966;161-163 (h) Burdett J.L., Rogers M.T. J. Am. Chem. Soc. 86:1964;2105-2109.
    • (1990) Chem. Phys. Lett. , vol.172 , pp. 271-274
    • Yamasaki, K.1    Kajimoto, O.2
  • 59
    • 0000512128 scopus 로고
    • See for example: (a) Bunting J.W., Kanter J.P. J. Am. Chem. Soc. 115:1993;11705-11715 (b) Yamasaki K., Kajimoto O. Chem. Phys. Lett. 172:1990;271-274 (c) Kallury K.R., Krull U.J., Thompson M. J. Org. Chem. 53:1988;1320-1322 (d) Zheglova D.K., Aleksiev A.A., Kmetska G.G., Petrov G.N., Kol'tsov A.I. J. Org. Chem. USSR. 24:1988;1641-1643 (e) Mills S.G., Beak P. J. Org. Chem. 50:1985;1216-1224 (f) Billman J.H., Sojka S., Taylor P.R. J. Chem. Soc., Perkin Trans. 2. 1972;2034-2035 (g) Allen G., Dwek R.A. J. Chem. Soc. (B). 1966;161-163 (h) Burdett J.L., Rogers M.T. J. Am. Chem. Soc. 86:1964;2105-2109.
    • (1988) J. Org. Chem. , vol.53 , pp. 1320-1322
    • Kallury, K.R.1    Krull, U.J.2    Thompson, M.3
  • 60
    • 0348052258 scopus 로고
    • See for example: (a) Bunting J.W., Kanter J.P. J. Am. Chem. Soc. 115:1993;11705-11715 (b) Yamasaki K., Kajimoto O. Chem. Phys. Lett. 172:1990;271-274 (c) Kallury K.R., Krull U.J., Thompson M. J. Org. Chem. 53:1988;1320-1322 (d) Zheglova D.K., Aleksiev A.A., Kmetska G.G., Petrov G.N., Kol'tsov A.I. J. Org. Chem. USSR. 24:1988;1641-1643 (e) Mills S.G., Beak P. J. Org. Chem. 50:1985;1216-1224 (f) Billman J.H., Sojka S., Taylor P.R. J. Chem. Soc., Perkin Trans. 2. 1972;2034-2035 (g) Allen G., Dwek R.A. J. Chem. Soc. (B). 1966;161-163 (h) Burdett J.L., Rogers M.T. J. Am. Chem. Soc. 86:1964;2105-2109.
    • (1988) J. Org. Chem. USSR , vol.24 , pp. 1641-1643
    • Zheglova, D.K.1    Aleksiev, A.A.2    Kmetska, G.G.3    Petrov, G.N.4    Kol'Tsov, A.I.5
  • 61
    • 0000884859 scopus 로고
    • See for example: (a) Bunting J.W., Kanter J.P. J. Am. Chem. Soc. 115:1993;11705-11715 (b) Yamasaki K., Kajimoto O. Chem. Phys. Lett. 172:1990;271-274 (c) Kallury K.R., Krull U.J., Thompson M. J. Org. Chem. 53:1988;1320-1322 (d) Zheglova D.K., Aleksiev A.A., Kmetska G.G., Petrov G.N., Kol'tsov A.I. J. Org. Chem. USSR. 24:1988;1641-1643 (e) Mills S.G., Beak P. J. Org. Chem. 50:1985;1216-1224 (f) Billman J.H., Sojka S., Taylor P.R. J. Chem. Soc., Perkin Trans. 2. 1972;2034-2035 (g) Allen G., Dwek R.A. J. Chem. Soc. (B). 1966;161-163 (h) Burdett J.L., Rogers M.T. J. Am. Chem. Soc. 86:1964;2105-2109.
    • (1985) J. Org. Chem. , vol.50 , pp. 1216-1224
    • Mills, S.G.1    Beak, P.2
  • 62
    • 10444272939 scopus 로고
    • See for example: (a) Bunting J.W., Kanter J.P. J. Am. Chem. Soc. 115:1993;11705-11715 (b) Yamasaki K., Kajimoto O. Chem. Phys. Lett. 172:1990;271-274 (c) Kallury K.R., Krull U.J., Thompson M. J. Org. Chem. 53:1988;1320-1322 (d) Zheglova D.K., Aleksiev A.A., Kmetska G.G., Petrov G.N., Kol'tsov A.I. J. Org. Chem. USSR. 24:1988;1641-1643 (e) Mills S.G., Beak P. J. Org. Chem. 50:1985;1216-1224 (f) Billman J.H., Sojka S., Taylor P.R. J. Chem. Soc., Perkin Trans. 2. 1972;2034-2035 (g) Allen G., Dwek R.A. J. Chem. Soc. (B). 1966;161-163 (h) Burdett J.L., Rogers M.T. J. Am. Chem. Soc. 86:1964;2105-2109.
    • (1972) J. Chem. Soc., Perkin Trans. 2 , pp. 2034-2035
    • Billman, J.H.1    Sojka, S.2    Taylor, P.R.3
  • 63
    • 0038463718 scopus 로고
    • See for example: (a) Bunting J.W., Kanter J.P. J. Am. Chem. Soc. 115:1993;11705-11715 (b) Yamasaki K., Kajimoto O. Chem. Phys. Lett. 172:1990;271-274 (c) Kallury K.R., Krull U.J., Thompson M. J. Org. Chem. 53:1988;1320-1322 (d) Zheglova D.K., Aleksiev A.A., Kmetska G.G., Petrov G.N., Kol'tsov A.I. J. Org. Chem. USSR. 24:1988;1641-1643 (e) Mills S.G., Beak P. J. Org. Chem. 50:1985;1216-1224 (f) Billman J.H., Sojka S., Taylor P.R. J. Chem. Soc., Perkin Trans. 2. 1972;2034-2035 (g) Allen G., Dwek R.A. J. Chem. Soc. (B). 1966;161-163 (h) Burdett J.L., Rogers M.T. J. Am. Chem. Soc. 86:1964;2105-2109.
    • (1966) J. Chem. Soc. (B) , pp. 161-163
    • Allen, G.1    Dwek, R.A.2
  • 64
    • 0001162292 scopus 로고
    • See for example: (a) Bunting J.W., Kanter J.P. J. Am. Chem. Soc. 115:1993;11705-11715 (b) Yamasaki K., Kajimoto O. Chem. Phys. Lett. 172:1990;271-274 (c) Kallury K.R., Krull U.J., Thompson M. J. Org. Chem. 53:1988;1320-1322 (d) Zheglova D.K., Aleksiev A.A., Kmetska G.G., Petrov G.N., Kol'tsov A.I. J. Org. Chem. USSR. 24:1988;1641-1643 (e) Mills S.G., Beak P. J. Org. Chem. 50:1985;1216-1224 (f) Billman J.H., Sojka S., Taylor P.R. J. Chem. Soc., Perkin Trans. 2. 1972;2034-2035 (g) Allen G., Dwek R.A. J. Chem. Soc. (B). 1966;161-163 (h) Burdett J.L., Rogers M.T. J. Am. Chem. Soc. 86:1964;2105-2109.
    • (1964) J. Am. Chem. Soc. , vol.86 , pp. 2105-2109
    • Burdett, J.L.1    Rogers, M.T.2
  • 65
    • 0004018410 scopus 로고
    • Solvents and Solvents Effects in Organic Chemistry
    • Weinheim: VCH Verlagsgesellschaft. pp 91-97
    • Reichardt C. Solvents and Solvents Effects in Organic Chemistry. 2nd ed. 1988;VCH Verlagsgesellschaft, Weinheim. pp 91-97.
    • (1988) 2nd Ed.
    • Reichardt, C.1
  • 71
    • 85030929798 scopus 로고    scopus 로고
    • 36 see for instance Ref. 10d
    • 36 see for instance Ref. 10d.
  • 72
    • 85030926661 scopus 로고    scopus 로고
    • note
    • 10g.
  • 74
    • 85030924294 scopus 로고    scopus 로고
    • note
    • Although 2c is formally alkyl substituted, the pyrrole ring can substantially alter its electronic effects.
  • 75
    • 85030919648 scopus 로고    scopus 로고
    • note
    • 36d.
  • 76
    • 85030919007 scopus 로고    scopus 로고
    • note
    • 36c.
  • 78
    • 85030921221 scopus 로고    scopus 로고
    • note
    • See Ref. 35, pp 360 and 365.
  • 79
    • 85030922923 scopus 로고    scopus 로고
    • See Ref. 35, p 113
    • See Ref. 35, p 113.
  • 80
    • 85030926957 scopus 로고    scopus 로고
    • See Ref. 35, p 402
    • See Ref. 35, p 402.
  • 81
    • 85030917994 scopus 로고    scopus 로고
    • 2CO]
    • 2CO].
  • 84
    • 85030920501 scopus 로고    scopus 로고
    • Beilsteins Handbuch der Organischen Chemie, Vierte Auflage, Band 3, p 244
    • Beilsteins Handbuch der Organischen Chemie, Vierte Auflage, Band 3, p 244.
  • 86
    • 85030924012 scopus 로고    scopus 로고
    • Ar masked by the aromatic signals due to the major (79%) enol tautomer
    • Ar masked by the aromatic signals due to the major (79%) enol tautomer.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.