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1
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0002253256
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For general reviews, see: (a) Turro, N. J. Acc. Chem. Res. 1969, 2, 25. (b) Wasserman, H. H.; Clark, G. M.; Turley, P. C. Top. Curr. Chem. 1974, 47, 73. (c) Wasserman, H. H.; Berdahl, D. R.; Lu, T.-J. In The Chemistry of the Cyclopropyl Group; Rappoport, Z., Ed.; Wiley: Chichester, 1987; Chapter 23.
-
(1969)
Acc. Chem. Res.
, vol.2
, pp. 25
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Turro, N.J.1
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2
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0002253256
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For general reviews, see: (a) Turro, N. J. Acc. Chem. Res. 1969, 2, 25. (b) Wasserman, H. H.; Clark, G. M.; Turley, P. C. Top. Curr. Chem. 1974, 47, 73. (c) Wasserman, H. H.; Berdahl, D. R.; Lu, T.-J. In The Chemistry of the Cyclopropyl Group; Rappoport, Z., Ed.; Wiley: Chichester, 1987; Chapter 23.
-
(1974)
Top. Curr. Chem.
, vol.47
, pp. 73
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Wasserman, H.H.1
Clark, G.M.2
Turley, P.C.3
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3
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0002253256
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Rappoport, Z., Ed.; Wiley: Chichester, Chapter 23
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For general reviews, see: (a) Turro, N. J. Acc. Chem. Res. 1969, 2, 25. (b) Wasserman, H. H.; Clark, G. M.; Turley, P. C. Top. Curr. Chem. 1974, 47, 73. (c) Wasserman, H. H.; Berdahl, D. R.; Lu, T.-J. In The Chemistry of the Cyclopropyl Group; Rappoport, Z., Ed.; Wiley: Chichester, 1987; Chapter 23.
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(1987)
The Chemistry of the Cyclopropyl Group
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Wasserman, H.H.1
Berdahl, D.R.2
Lu, T.-J.3
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4
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0007214212
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The bulky tert-butyl-disubstituted cyclopropanes are shown to be stable at room temperature: (a) Pazos, J. F.; Greene, F. D. J. Am. Chem. Soc. 1967, 89, 1030. (b) Crandall, J. K.; Machleder, W. H. J. Am. Chem. Soc. 1968, 90, 7347. (c) Camp, R. L.; Greene, F. D. J. Am. Chem. Soc. 1968, 90, 7349.
-
(1967)
J. Am. Chem. Soc.
, vol.89
, pp. 1030
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Pazos, J.F.1
Greene, F.D.2
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5
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0001598622
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The bulky tert-butyl-disubstituted cyclopropanes are shown to be stable at room temperature: (a) Pazos, J. F.; Greene, F. D. J. Am. Chem. Soc. 1967, 89, 1030. (b) Crandall, J. K.; Machleder, W. H. J. Am. Chem. Soc. 1968, 90, 7347. (c) Camp, R. L.; Greene, F. D. J. Am. Chem. Soc. 1968, 90, 7349.
-
(1968)
J. Am. Chem. Soc.
, vol.90
, pp. 7347
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Crandall, J.K.1
Machleder, W.H.2
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6
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33947317306
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The bulky tert-butyl-disubstituted cyclopropanes are shown to be stable at room temperature: (a) Pazos, J. F.; Greene, F. D. J. Am. Chem. Soc. 1967, 89, 1030. (b) Crandall, J. K.; Machleder, W. H. J. Am. Chem. Soc. 1968, 90, 7347. (c) Camp, R. L.; Greene, F. D. J. Am. Chem. Soc. 1968, 90, 7349.
-
(1968)
J. Am. Chem. Soc.
, vol.90
, pp. 7349
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Camp, R.L.1
Greene, F.D.2
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8
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0001940378
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1-Siloxy-1-alkoxycyclopropanes have been utilized as the homoenolate anion precursors: Kuwajima, I.; Nakamura, E. Top. Curr. Chem. 1990, 155, 1.
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(1990)
Top. Curr. Chem.
, vol.155
, pp. 1
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Kuwajima, I.1
Nakamura, E.2
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9
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85033827185
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note
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Among these methods are addition of diazoalkanes to ketenes in the presence of an alcohol, acyloin-type cyclization of 3-chloropropanoate, and the Simmons-Smith cyclopropanation of ketene trimethylsilyl ketals.
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10
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0029991524
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(a) Lee, J.; Kim, H.; Cha, J. K. J. Am. Chem. Soc. 1996, 118, 4198.
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(1996)
J. Am. Chem. Soc.
, vol.118
, pp. 4198
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Lee, J.1
Kim, H.2
Cha, J.K.3
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11
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1642548109
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See also: (b) Lee, J.; Kang, C. H.; Kim, H.; Cha, J. K. J. Am. Chem. Soc. 1996, 118, 291. (c) Lee, J.; Kim, H.; Cha, J. K. J. Am. Chem. Soc. 1995, 117, 9919.
-
(1996)
J. Am. Chem. Soc.
, vol.118
, pp. 291
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Lee, J.1
Kang, C.H.2
Kim, H.3
Cha, J.K.4
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12
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0000242090
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See also: (b) Lee, J.; Kang, C. H.; Kim, H.; Cha, J. K. J. Am. Chem. Soc. 1996, 118, 291. (c) Lee, J.; Kim, H.; Cha, J. K. J. Am. Chem. Soc. 1995, 117, 9919.
-
(1995)
J. Am. Chem. Soc.
, vol.117
, pp. 9919
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Lee, J.1
Kim, H.2
Cha, J.K.3
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13
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0000212444
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(a) Kulinkovich, O. G.; Sviridov, S. V.; Vasilevskii, D. A.; Pritytskaya, T. S. Zh. Org. Khim. 1989, 25, 2244.
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(1989)
Zh. Org. Khim.
, vol.25
, pp. 2244
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Kulinkovich, O.G.1
Sviridov, S.V.2
Vasilevskii, D.A.3
Pritytskaya, T.S.4
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14
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0000758786
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(b) Kulinkovich, O. G.; Sviridov, S. V.; Vasilevskii, D. A.; Savchenko, A. I.; Pritytskaya, T. S. Zh. Org. Khim. 1991, 27, 294.
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(1991)
Zh. Org. Khim.
, vol.27
, pp. 294
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Kulinkovich, O.G.1
Sviridov, S.V.2
Vasilevskii, D.A.3
Savchenko, A.I.4
Pritytskaya, T.S.5
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16
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0001563917
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(d) Kulinkovich, O. G.; Vasilevskii, D. A.; Savchenko, A. I.; Sviridov, S. V. Zh. Org. Khim. 1991, 27, 1428.
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(1991)
Zh. Org. Khim.
, vol.27
, pp. 1428
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Kulinkovich, O.G.1
Vasilevskii, D.A.2
Savchenko, A.I.3
Sviridov, S.V.4
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17
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0003430531
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(e) For use of tributyl vanadate, see: Kulinkovich, O. G.; Sorokin, V. L.; Kel'in, A. V. Zh. Org. Khim. 1993, 29, 66.
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(1993)
Zh. Org. Khim.
, vol.29
, pp. 66
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Kulinkovich, O.G.1
Sorokin, V.L.2
Kel'in, A.V.3
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18
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33751386018
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(a) de Meijere, A.; Kozhushkov, S. I.; Spaeth, T.; Zefirov, N. S. J. Org. Chem. 1993, 58, 502.
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(1993)
J. Org. Chem.
, vol.58
, pp. 502
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De Meijere, A.1
Kozhushkov, S.I.2
Spaeth, T.3
Zefirov, N.S.4
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19
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33748630852
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(b) See also: Chaplinski, V.; de Meijere, A. Angew. Chem., Int. Ed. Engl. 1996, 35, 413.
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(1996)
Angew. Chem., Int. Ed. Engl.
, vol.35
, pp. 413
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Chaplinski, V.1
De Meijere, A.2
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20
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85033805820
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note
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(a) The product 4 was obtained as a single diastereomer, and the indicated stereochemical assignment was made on the basis of difference NOE measurements. (b) The stereochemistry of the products 6a-c was assigned on the basis of difference NOE measurements; NOEs from the cyclopropane ring protons, including the -OH proton, provided a reliable guide to their stereochemical assignment. (c) Hemiketals 7-10 were obtained as a 4:1-5:1 mixture of the β-H and α-H diastereomers.
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21
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85033822566
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Unpublished results
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More recently, we discovered that use of cyclopentylmagnesium chloride (rather than cyclohexylmagnesium chloride) provides uniformly higher yields of cyclopropanols from alkyl carboxylates: Lee, J.; Cha, J. K. Unpublished results.
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Lee, J.1
Cha, J.K.2
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22
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85033823120
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note
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4. Filtration and evaporation in vacuo gave the crude product. Purification by column chromatography on silica gel afforded 0.14 g (47%) of hemiketal 6a,b as a 2:1 diastereomeric mixture (a colorless oil).
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23
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37049113679
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Cf. (a) Osborne, N. F. J. Chem. Soc., Perkin Trans. 1 1982, 1435. (b) Rüchardt, C.; Eichler, S.; Panse, P. Angew. Chem., Int. Ed. Engl. 1963, 2, 619.
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(1982)
J. Chem. Soc., Perkin Trans. 1
, pp. 1435
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Osborne, N.F.1
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24
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77949491175
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Cf. (a) Osborne, N. F. J. Chem. Soc., Perkin Trans. 1 1982, 1435. (b) Rüchardt, C.; Eichler, S.; Panse, P. Angew. Chem., Int. Ed. Engl. 1963, 2, 619.
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(1963)
Angew. Chem., Int. Ed. Engl.
, vol.2
, pp. 619
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Rüchardt, C.1
Eichler, S.2
Panse, P.3
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25
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85033824198
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note
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A tandem application of our cyclopropanation protocol and Wittig olefination thus provides a new, convenient synthetic method for alkylidenecyclopropanes.
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26
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0029984653
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(a) Very recently, Sato and co-workers reported the identical reaction of 12, in which the γ-lactone 14 was obtained in 92% yield with use of i-PrMgCl at -40°C: Okamoto, S.; Kasatkin, A.; Zubaidha, P. K.; Sato, F. J. Am. Chem. Soc. 1996, 118, 2208. Under Sato's reaction conditions, we believe the actual product was also ester 15, which underwent facile lactonization during workup with 3 N HCl.
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(1996)
J. Am. Chem. Soc.
, vol.118
, pp. 2208
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Okamoto, S.1
Kasatkin, A.2
Zubaidha, P.K.3
Sato, F.4
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27
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85033809496
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note
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(b) Indeed, in our hands, the experimental procedure of Sato gave 70% of 15 and 4% of 14, when the reaction was quenched with addition of water in lieu of 3 N HCl. Moreover, treatment of 15 with 3 N HCl at room temperature gave the lactone 14 in quantitative yield.
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