-
1
-
-
0029119647
-
-
Pommier, A.; Pons, J.-M. Synthesis 1995, 729-744. Löwe, C.; Vederas, J. Organic Prep. & Proc. Intl. 1995, 27, 305-346.
-
(1995)
Synthesis
, pp. 729-744
-
-
Pommier, A.1
Pons, J.-M.2
-
2
-
-
77955455980
-
-
Pommier, A.; Pons, J.-M. Synthesis 1995, 729-744. Löwe, C.; Vederas, J. Organic Prep. & Proc. Intl. 1995, 27, 305-346.
-
(1995)
Organic Prep. & Proc. Intl.
, vol.27
, pp. 305-346
-
-
Löwe, C.1
Vederas, J.2
-
3
-
-
0001496779
-
-
For a recent application to lanthionine synthesis, see: Shao, H.; Wang, S. H. H.; Lee, C.-W.; Osapay, G.; Goodman, M. J. Org. Chem. 1995, 60, 2956-2957. Palomo, C.; Miranda, J. I.; Cuevas, C.; Odriozola, J. M. J. Chem. Soc., Chem. Commun. 1995, 1735-1736 and references cited. For a review of β-lactones, see: Pommier, A.; Pons, J.-M. Synthesis 1993, 441-449.
-
(1995)
J. Org. Chem.
, vol.60
, pp. 2956-2957
-
-
Shao, H.1
Wang, S.H.H.2
Lee, C.-W.3
Osapay, G.4
Goodman, M.5
-
4
-
-
37049089938
-
-
and references cited
-
For a recent application to lanthionine synthesis, see: Shao, H.; Wang, S. H. H.; Lee, C.-W.; Osapay, G.; Goodman, M. J. Org. Chem. 1995, 60, 2956-2957. Palomo, C.; Miranda, J. I.; Cuevas, C.; Odriozola, J. M. J. Chem. Soc., Chem. Commun. 1995, 1735-1736 and references cited. For a review of β-lactones, see: Pommier, A.; Pons, J.-M. Synthesis 1993, 441-449.
-
(1995)
J. Chem. Soc., Chem. Commun.
, pp. 1735-1736
-
-
Palomo, C.1
Miranda, J.I.2
Cuevas, C.3
Odriozola, J.M.4
-
5
-
-
0027175468
-
-
For a recent application to lanthionine synthesis, see: Shao, H.; Wang, S. H. H.; Lee, C.-W.; Osapay, G.; Goodman, M. J. Org. Chem. 1995, 60, 2956-2957. Palomo, C.; Miranda, J. I.; Cuevas, C.; Odriozola, J. M. J. Chem. Soc., Chem. Commun. 1995, 1735-1736 and references cited. For a review of β-lactones, see: Pommier, A.; Pons, J.-M. Synthesis 1993, 441-449.
-
(1993)
Synthesis
, pp. 441-449
-
-
Pommier, A.1
Pons, J.-M.2
-
6
-
-
0004220172
-
-
Oxford Press: New York
-
Stevens, M. P. Polymer Chemistry; 2nd ed.; Oxford Press: New York, 1990, pp 403-407. Capozzi, G.; Roelens, S.; Talami, S. J. Org. Chem. 1993, 58, 7932-7936 and references cited.
-
(1990)
Polymer Chemistry; 2nd Ed.
, pp. 403-407
-
-
Stevens, M.P.1
-
7
-
-
0027745960
-
-
and references cited
-
Stevens, M. P. Polymer Chemistry; 2nd ed.; Oxford Press: New York, 1990, pp 403-407. Capozzi, G.; Roelens, S.; Talami, S. J. Org. Chem. 1993, 58, 7932-7936 and references cited.
-
(1993)
J. Org. Chem.
, vol.58
, pp. 7932-7936
-
-
Capozzi, G.1
Roelens, S.2
Talami, S.3
-
9
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85033757542
-
-
note
-
In contrast, related Mukaiyama aldols employing α-unsubstituted ketene acetals suffer from low diastereoselectivity. The t-butyldimethylsilyl ketene acetal ii was employed in a Mukaiyama aldol reaction with the same benzyloxy substituted aldehyde i under similar reaction conditions. This gave the aldol product iii in 60% de. In contrast, [2+2] cycloaddition with the same substrate gave β-lactone 1 in 96% de. (Equation Presented)
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-
-
-
10
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-
0027289152
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-
and references cited
-
Canan Koch, S. S. ; Chamberlin, A. R. J. Org. Chem. 1993, 58, 2725-2737 and references cited. Takahata, H.; Uchida, Y.; Momose, T. J. Org. Chem. 1994, 59, 7201-7208. For example, γ-butyrolactone (+)-4 is a constituent of 30-methyloscillatoxin D: Entzeroth, M; Blackman, A. J.; Mynderse, J. S.; Moore, R. E. J. Org. Chem. 1985, 50, 1255-1259. δ-Lactones as compactin and mevinolin analogs, see: Solladie, G.; Bauder, C.; Rossi, L. J. Org. Chem. 1995, 60, 7774-7777.
-
(1993)
J. Org. Chem.
, vol.58
, pp. 2725-2737
-
-
Canan Koch, S.S.1
Chamberlin, A.R.2
-
11
-
-
0028569119
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-
Canan Koch, S. S. ; Chamberlin, A. R. J. Org. Chem. 1993, 58, 2725-2737 and references cited. Takahata, H.; Uchida, Y.; Momose, T. J. Org. Chem. 1994, 59, 7201-7208. For example, γ-butyrolactone (+)-4 is a constituent of 30-methyloscillatoxin D: Entzeroth, M; Blackman, A. J.; Mynderse, J. S.; Moore, R. E. J. Org. Chem. 1985, 50, 1255-1259. δ-Lactones as compactin and mevinolin analogs, see: Solladie, G.; Bauder, C.; Rossi, L. J. Org. Chem. 1995, 60, 7774-7777.
-
(1994)
J. Org. Chem.
, vol.59
, pp. 7201-7208
-
-
Takahata, H.1
Uchida, Y.2
Momose, T.3
-
12
-
-
0021909103
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-
Canan Koch, S. S. ; Chamberlin, A. R. J. Org. Chem. 1993, 58, 2725-2737 and references cited. Takahata, H.; Uchida, Y.; Momose, T. J. Org. Chem. 1994, 59, 7201-7208. For example, γ-butyrolactone (+)-4 is a constituent of 30-methyloscillatoxin D: Entzeroth, M; Blackman, A. J.; Mynderse, J. S.; Moore, R. E. J. Org. Chem. 1985, 50, 1255-1259. δ-Lactones as compactin and mevinolin analogs, see: Solladie, G.; Bauder, C.; Rossi, L. J. Org. Chem. 1995, 60, 7774-7777.
-
(1985)
J. Org. Chem.
, vol.50
, pp. 1255-1259
-
-
Entzeroth, M.1
Blackman, A.J.2
Mynderse, J.S.3
Moore, R.E.4
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13
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0028793093
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-
Canan Koch, S. S. ; Chamberlin, A. R. J. Org. Chem. 1993, 58, 2725-2737 and references cited. Takahata, H.; Uchida, Y.; Momose, T. J. Org. Chem. 1994, 59, 7201-7208. For example, γ-butyrolactone (+)-4 is a constituent of 30-methyloscillatoxin D: Entzeroth, M; Blackman, A. J.; Mynderse, J. S.; Moore, R. E. J. Org. Chem. 1985, 50, 1255-1259. δ-Lactones as compactin and mevinolin analogs, see: Solladie, G.; Bauder, C.; Rossi, L. J. Org. Chem. 1995, 60, 7774-7777.
-
(1995)
J. Org. Chem.
, vol.60
, pp. 7774-7777
-
-
Solladie, G.1
Bauder, C.2
Rossi, L.3
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14
-
-
0000944974
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-
Vieira, P. C.; Yoshida, M.; Gottlieb, O. R.; Filho, H. F. P.; Nagem, T. J.; Filho, R. B. Phytochem. 1983, 22, 711-713.
-
(1983)
Phytochem.
, vol.22
, pp. 711-713
-
-
Vieira, P.C.1
Yoshida, M.2
Gottlieb, O.R.3
Filho, H.F.P.4
Nagem, T.J.5
Filho, R.B.6
-
16
-
-
0027959544
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-
Kan, T.; Hosokawa, S.; Nara, S.; Oikawa, M.; Ito, S.; Matsuda, F.; Shirahama, H. J. Org. Chem. 1994, 59, 5532-5534.
-
(1994)
J. Org. Chem.
, vol.59
, pp. 5532-5534
-
-
Kan, T.1
Hosokawa, S.2
Nara, S.3
Oikawa, M.4
Ito, S.5
Matsuda, F.6
Shirahama, H.7
-
17
-
-
0022995478
-
-
Seebach, D.; Chow, H.-F.; Jackson, R. F. W.; Lawson, K.; Sutter, M. A.; Thasrivongs, S.; Zimmermann, J. Liebigs Ann. Chem. 1986, 1281-1308.
-
(1986)
Liebigs Ann. Chem.
, pp. 1281-1308
-
-
Seebach, D.1
Chow, H.-F.2
Jackson, R.F.W.3
Lawson, K.4
Sutter, M.A.5
Thasrivongs, S.6
Zimmermann, J.7
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19
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85033734492
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-
note
-
A representative procedure as described for γ-lactone 4 follows: β-Lactone 2 (210 mg; 1.02 mmol) was dissolved in 30 mL of methylene chloride. Ferric chloride (31 mg; 0.2 mmol) was added to the stirred solution of β-lactone at ambient temperature. The black slurry was stirred at the same temperature for 42 hours. The reaction mixture was then passed through a short florisil column with ethyl acetate as eluent. Concentration under reduced pressure gave a yellow oil. Purification of the crude material by flash column chromatography (gradient elution: 20% EtOAc / hexane → EtOAc) gave 86 mg (74%) of γ-butyrolactone 4 as a colorless oil along with 19 mg (9%) of the benzylated γ-butyrolactone 11. The spectral characteristics of γ-butyrolactone 4 correlated with that reported in the literature (ref. 6).
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-
-
20
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85033738468
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All new compounds gave spectral data consistent with their assigned structure
-
All new compounds gave spectral data consistent with their assigned structure.
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-
-
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21
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85033764149
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-
Although it appears that a single diastereomer of the bromide 14 is formed, the configuration has not been determined
-
Although it appears that a single diastereomer of the bromide 14 is formed, the configuration has not been determined.
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22
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0022354620
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Arnold, L. D.; Kalantar, T. H.; Vederas, J. C. J.Am. Chem. Soc. 1985, 107, 7105-7109.
-
(1985)
J.Am. Chem. Soc.
, vol.107
, pp. 7105-7109
-
-
Arnold, L.D.1
Kalantar, T.H.2
Vederas, J.C.3
-
23
-
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84985595054
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-
Mulzer, J.; Bruntrup, G. Agnew. Chem. Int. Ed. Engl. 1979, 18, 793-794. Mulzer, J.; Pointner, A.; Straber, R.; Hoyer, K.; Nagel, U. Tetrahedron Lett. 1995, 36, 3679-3682. Black, T. H.; McDermott, T. S. Syn. Commun. 1990, 20, 2959-2964 and references cited.
-
(1979)
Agnew. Chem. Int. Ed. Engl.
, vol.18
, pp. 793-794
-
-
Mulzer, J.1
Bruntrup, G.2
-
24
-
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0029070185
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Mulzer, J.; Bruntrup, G. Agnew. Chem. Int. Ed. Engl. 1979, 18, 793-794. Mulzer, J.; Pointner, A.; Straber, R.; Hoyer, K.; Nagel, U. Tetrahedron Lett. 1995, 36, 3679-3682. Black, T. H.; McDermott, T. S. Syn. Commun. 1990, 20, 2959-2964 and references cited.
-
(1995)
Tetrahedron Lett.
, vol.36
, pp. 3679-3682
-
-
Mulzer, J.1
Pointner, A.2
Straber, R.3
Hoyer, K.4
Nagel, U.5
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25
-
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1542552999
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-
and references cited
-
Mulzer, J.; Bruntrup, G. Agnew. Chem. Int. Ed. Engl. 1979, 18, 793-794. Mulzer, J.; Pointner, A.; Straber, R.; Hoyer, K.; Nagel, U. Tetrahedron Lett. 1995, 36, 3679-3682. Black, T. H.; McDermott, T. S. Syn. Commun. 1990, 20, 2959-2964 and references cited.
-
(1990)
Syn. Commun.
, vol.20
, pp. 2959-2964
-
-
Black, T.H.1
McDermott, T.S.2
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27
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85033737445
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-
note
-
2O, 91% (viii) NaI, acetone, reflux, 73%.
-
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-
-
28
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85033770328
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-
note
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3 (M+H): 459.3838, found: 459.3867. The melting point discrepancy may be due to contamination of natural (-)-grandinolide with lactones differing only in the length of the side chain which were also found to be present in extracts (ref. 7). Prof. Gottlieb no longer had a sample of (-)-grandinolide for direct spectral comparison.
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29
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0000008027
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-
and references cited
-
Mead, K. T.; Yang, H.-L. J. Org. Chem. 1990, 55, 2991-2992 and references cited.
-
(1990)
J. Org. Chem.
, vol.55
, pp. 2991-2992
-
-
Mead, K.T.1
Yang, H.-L.2
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