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1
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0028661171
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For reviews, see: a)
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For reviews, see: a) Wentrup, C.; Heilmayer, W.; Kollenz, G. Synthesis 1994, 1219-1248.
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Wentrup, C.1
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84986532412
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Kaneko, C.1
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0000777181
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For a review, see
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4
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11944250881
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For reviews, see: a)
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84998336420
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85011124338
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Sato, M.1
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84936290895
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Jäger, G.; Wenzelburger, J. Ann. Chem. 1976, 1689-1712. Hyatt, J.A.; Feldman, P.L.; Clemens, R.J. J. Org. Chem. 1984, 49, 5105-5108. Boeckman, R.K., Jr.; Perni, R.B. J. Org. Chem. 1986, 51, 5489-5490.
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Jäger, G.1
Wenzelburger2
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0000728075
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Jäger, G.; Wenzelburger, J. Ann. Chem. 1976, 1689-1712. Hyatt, J.A.; Feldman, P.L.; Clemens, R.J. J. Org. Chem. 1984, 49, 5105-5108. Boeckman, R.K., Jr.; Perni, R.B. J. Org. Chem. 1986, 51, 5489-5490.
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Hyatt, J.A.1
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Clemens, R.J.3
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10
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0000493889
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Jäger, G.; Wenzelburger, J. Ann. Chem. 1976, 1689-1712. Hyatt, J.A.; Feldman, P.L.; Clemens, R.J. J. Org. Chem. 1984, 49, 5105-5108. Boeckman, R.K., Jr.; Perni, R.B. J. Org. Chem. 1986, 51, 5489-5490.
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Boeckman R.K., Jr.1
Perni, R.B.2
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0343163747
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a)
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a) Sato, M.; Ogasawara, H.; Takayama, K.; Kaneko, C. Heterocycles 1987, 26, 2611-2614.
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Heterocycles
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, pp. 2611-2614
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Sato, M.1
Ogasawara, H.2
Takayama, K.3
Kaneko, C.4
-
12
-
-
0026761431
-
-
b)
-
b) Iwaoka, T.; Murohashi, T.; Sato, M.; Kaneko, C. Synthesis 1992, 977-981.
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(1992)
Synthesis
, pp. 977-981
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-
Iwaoka, T.1
Murohashi, T.2
Sato, M.3
Kaneko, C.4
-
14
-
-
0029966520
-
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d)
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d) Chiang, Y.; Guo, H.-X.; Kresge, A.J.; Tee, O.S. J. Am. Chem. Soc. 1996, 118, 3386-3391.
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, pp. 3386-3391
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Chiang, Y.1
Guo, H.-X.2
Kresge, A.J.3
Tee, O.S.4
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17
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0000534366
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c)
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c) Wagenseller, P.E.; Birney, D.M.; Roy, D. J. Org. Chem. 1995, 60, 2853-2859.
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Wagenseller, P.E.1
Birney, D.M.2
Roy, D.3
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18
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0000473621
-
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d)
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d) Eisenberg, S.W.E.; Kurth, M.J.; Fink, W.H. J. Org. Chem. 1995, 60, 3736-3742.
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J. Org. Chem.
, vol.60
, pp. 3736-3742
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Eisenberg, S.W.E.1
Kurth, M.J.2
Fink, W.H.3
-
19
-
-
0342294066
-
-
Bihlmayer, G.A.; Schuster, P.; Polansky, O.E. Monatsh. Chem. 1966, 96, 145-149. Matoba, K.; Yamazaki, T. Chem. Pharm. Bull. 1983, 31, 2955-2956.
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Monatsh. Chem.
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, pp. 145-149
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Bihlmayer, G.A.1
Schuster, P.2
Polansky, O.E.3
-
20
-
-
0011822499
-
-
Bihlmayer, G.A.; Schuster, P.; Polansky, O.E. Monatsh. Chem. 1966, 96, 145-149. Matoba, K.; Yamazaki, T. Chem. Pharm. Bull. 1983, 31, 2955-2956.
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Chem. Pharm. Bull.
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, pp. 2955-2956
-
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Matoba, K.1
Yamazaki, T.2
-
21
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0343163746
-
-
General procedure for preparation of 4: To a solution of 3 (3.0 mmol) in dichloromethane (10 ml) was added an ethereal solution of diazomethane (ca. 5 mmol) at -30 °C. The solution was stirred for 10 min and then evaporated in vacuo at -30 °C. Washing the crystalline residue with a mixture of ether and pentane afforded 4
-
General procedure for preparation of 4: To a solution of 3 (3.0 mmol) in dichloromethane (10 ml) was added an ethereal solution of diazomethane (ca. 5 mmol) at -30 °C. The solution was stirred for 10 min and then evaporated in vacuo at -30 °C. Washing the crystalline residue with a mixture of ether and pentane afforded 4.
-
-
-
-
22
-
-
0343599064
-
-
note
-
-1.
-
-
-
-
23
-
-
0343163745
-
-
3) δ 52.6, 125.7, 126.9, 127.4, 129.0, 166.5, 192.4
-
3) δ 52.6, 125.7, 126.9, 127.4, 129.0, 166.5, 192.4.
-
-
-
-
25
-
-
0343163742
-
-
General procedure for preparation of 8: A solution of 3 (3.0 mmol), t-butylchlorodiphenylsilane (3.3 mmol), and triethylamine (3.3 mmol) in dichloromethane (10 ml) was stirred at -50 °C for 2 h. The solution was evaporated in vacuo at below -20 °C. Ether was added to the residue and the solution was passed through a short column of silica gel cooled to -20 °C. Evaporation of the solvent at -20 °C followed by washing the crystalline residue with pentane furnished 8
-
General procedure for preparation of 8: A solution of 3 (3.0 mmol), t-butylchlorodiphenylsilane (3.3 mmol), and triethylamine (3.3 mmol) in dichloromethane (10 ml) was stirred at -50 °C for 2 h. The solution was evaporated in vacuo at below -20 °C. Ether was added to the residue and the solution was passed through a short column of silica gel cooled to -20 °C. Evaporation of the solvent at -20 °C followed by washing the crystalline residue with pentane furnished 8.
-
-
-
-
26
-
-
0342294062
-
-
3) δ 1.02 (6H, s), 1.09 (9H, s), 1.41 (9H, s), 7.3-7.5 (3H, m), 7.6-7.7 (2H, m)
-
3) δ 1.02 (6H, s), 1.09 (9H, s), 1.41 (9H, s), 7.3-7.5 (3H, m), 7.6-7.7 (2H, m).
-
-
-
-
27
-
-
0343163739
-
-
3) δ 19.2, 23.7, 26.6, 30.7, 32.2, 93.1, 102.9, 128.0, 130.5, 132.1, 135.3, 160.5, 163.6
-
3) δ 19.2, 23.7, 26.6, 30.7, 32.2, 93.1, 102.9, 128.0, 130.5, 132.1, 135.3, 160.5, 163.6.
-
-
-
-
28
-
-
0005380512
-
-
For reviews, see: a)
-
For reviews, see: a) McNab, H. Chem. Soc. Rev. 1978, 7, 345-358.
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Chem. Soc. Rev.
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, pp. 345-358
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McNab, H.1
-
30
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0020682790
-
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a) Chorev M., RubiniE., Gilon C., Selinger Z.
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a) Chorev, M.; Rubini, E.; Gilon, C.; Selinger, Z. J. Med. Chem. 1983, 26, 129-135.
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, pp. 129-135
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31
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0021255337
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b)
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b) Gassmann, P.; Hagmann, L.; Keller-Schierlein, W.; Samain, D. Helv. Chim. Acta 1984, 67, 696-705.
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Helv. Chim. Acta
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, pp. 696-705
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Gassmann, P.1
Hagmann, L.2
Keller-Schierlein, W.3
Samain, D.4
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32
-
-
0007374717
-
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c)
-
c) Oikawa, Y.; Sugano, K.; Yonemitsu, O. J. Org. Chem. 1978, 43, 2087-2088.
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, vol.43
, pp. 2087-2088
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Oikawa, Y.1
Sugano, K.2
Yonemitsu, O.3
-
33
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0001535139
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Rigo, B.; Fasseur, P.; Couturier, D. Tetrahedron Lett. 1989, 30, 3073-3076. Zawacki, F.J.; Crimmins, M.T. Tetrahedron Lett. 1996, 37, 6499-6502.
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, pp. 3073-3076
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Rigo, B.1
Fasseur, P.2
Couturier, D.3
-
34
-
-
0030565567
-
-
Rigo, B.; Fasseur, P.; Couturier, D. Tetrahedron Lett. 1989, 30, 3073-3076. Zawacki, F.J.; Crimmins, M.T. Tetrahedron Lett. 1996, 37, 6499-6502.
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, vol.37
, pp. 6499-6502
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Zawacki, F.J.1
Crimmins, M.T.2
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35
-
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0005646198
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Sato, M.; Ogasawara, H.; Sekiguchi, K.; Kaneko, C. Heterocycles 1984, 22, 2563-2570. Sato, M.; Yoneda, N.; Katagiri, N.; Watanabe, H.; Kaneko, C. Synthesis 1986, 672-674.
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Heterocycles
, vol.22
, pp. 2563-2570
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Sato, M.1
Ogasawara, H.2
Sekiguchi, K.3
Kaneko, C.4
-
36
-
-
85005648145
-
-
Sato, M.; Ogasawara, H.; Sekiguchi, K.; Kaneko, C. Heterocycles 1984, 22, 2563-2570. Sato, M.; Yoneda, N.; Katagiri, N.; Watanabe, H.; Kaneko, C. Synthesis 1986, 672-674.
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(1986)
Synthesis
, pp. 672-674
-
-
Sato, M.1
Yoneda, N.2
Katagiri, N.3
Watanabe, H.4
Kaneko, C.5
-
37
-
-
84987463874
-
-
Sato, M.; Sekiguchi, K.; Ogasawara, H.; Kaneko, C. Synthesis 1985, 224-226. Katagiri, N.; Kurimoto, A.; Yamada, A.; Sato, H.; Katsuhara, T.; Takagi, K.; Kaneko, C. J. Chem. Soc., Chem. Commun. 1994, 281-282.
-
(1985)
Synthesis
, pp. 224-226
-
-
Sato, M.1
Sekiguchi, K.2
Ogasawara, H.3
Kaneko, C.4
-
38
-
-
37049083467
-
-
Sato, M.; Sekiguchi, K.; Ogasawara, H.; Kaneko, C. Synthesis 1985, 224-226. Katagiri, N.; Kurimoto, A.; Yamada, A.; Sato, H.; Katsuhara, T.; Takagi, K.; Kaneko, C. J. Chem. Soc., Chem. Commun. 1994, 281-282.
-
(1994)
J. Chem. Soc., Chem. Commun.
, pp. 281-282
-
-
Katagiri, N.1
Kurimoto, A.2
Yamada, A.3
Sato, H.4
Katsuhara, T.5
Takagi, K.6
Kaneko, C.7
-
39
-
-
85011124338
-
-
Sato, M.; Ogasawara, H.; Kato, T. Chem. Pharm. Bull. 1984, 32, 2602-2608. Yamamoto, Y.; Watanabe, Y.; Ohnishi, S. Chem. Pharm. Bull. 1987, 35, 1860-1870.
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Chem. Pharm. Bull.
, vol.32
, pp. 2602-2608
-
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Sato, M.1
Ogasawara, H.2
Kato, T.3
-
40
-
-
85011124338
-
-
Sato, M.; Ogasawara, H.; Kato, T. Chem. Pharm. Bull. 1984, 32, 2602-2608. Yamamoto, Y.; Watanabe, Y.; Ohnishi, S. Chem. Pharm. Bull. 1987, 35, 1860-1870.
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(1987)
Chem. Pharm. Bull.
, vol.35
, pp. 1860-1870
-
-
Yamamoto, Y.1
Watanabe, Y.2
Ohnishi, S.3
-
41
-
-
0346294738
-
-
Fragmentation of Meldrum's acid and the derivatives to ketenes by flash vacuum pyrolysis (>400 °C) has been well studied. For reviews, see and a
-
Fragmentation of Meldrum's acid and the derivatives to ketenes by flash vacuum pyrolysis (>400 °C) has been well studied. For reviews, see: Wentrup, C. Pure Appl. Chem. 1996, 68, 891-894 and a.
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(1996)
Pure Appl. Chem.
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, pp. 891-894
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Wentrup, C.1
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43
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Sato, M.; Hisamichi, H.; Kaneko, C.; Suzuki, N.; Furuya, T.; Inukai, N. Tetrahedron Lett. 1989, 30, 5281-5284. Sato, M.; Kano, K.; Kitazawa, N.; Hisamichi, H.; Kaneko, C. Heterocycles 1990, 31, 1229-1232.
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(1989)
Tetrahedron Lett.
, vol.30
, pp. 5281-5284
-
-
Sato, M.1
Hisamichi, H.2
Kaneko, C.3
Suzuki, N.4
Furuya, T.5
Inukai, N.6
-
44
-
-
0000222158
-
-
Sato, M.; Hisamichi, H.; Kaneko, C.; Suzuki, N.; Furuya, T.; Inukai, N. Tetrahedron Lett. 1989, 30, 5281-5284. Sato, M.; Kano, K.; Kitazawa, N.; Hisamichi, H.; Kaneko, C. Heterocycles 1990, 31, 1229-1232.
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(1990)
Heterocycles
, vol.31
, pp. 1229-1232
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-
Sato, M.1
Kano, K.2
Kitazawa, N.3
Hisamichi, H.4
Kaneko, C.5
|