Facile synthesis of homochiral derivatives of 10-bornane sulfinates, sulfinamides and sulfinimines
摘要:
A convenient route for the synthesis of enantiopure 10-bornanesulfinic acid derivatives from (1S)-camphorsulfonyl chloride is described. An interesting epimerization at sulfur in five-membered sultines is observed, leading to diastereoisomerically pure (S-s)-10-isobornyl sulfinates. A large difference in solubility in organic solvents allowed (R-s)-2-oxo-10-bornanesulfinamide to be obtained as the major diastereoisomer. Cyclization of 2-oxo-10-bornanesulfinamides gave five-membered sulfinimines. (C) 1999 Elsevier Science Ltd. All rights reserved.
Facile synthesis of homochiral derivatives of 10-bornane sulfinates, sulfinamides and sulfinimines
摘要:
A convenient route for the synthesis of enantiopure 10-bornanesulfinic acid derivatives from (1S)-camphorsulfonyl chloride is described. An interesting epimerization at sulfur in five-membered sultines is observed, leading to diastereoisomerically pure (S-s)-10-isobornyl sulfinates. A large difference in solubility in organic solvents allowed (R-s)-2-oxo-10-bornanesulfinamide to be obtained as the major diastereoisomer. Cyclization of 2-oxo-10-bornanesulfinamides gave five-membered sulfinimines. (C) 1999 Elsevier Science Ltd. All rights reserved.
Facile synthesis of homochiral derivatives of 10-bornane sulfinates, sulfinamides and sulfinimines
作者:Robert Kawęcki
DOI:10.1016/s0957-4166(99)00433-4
日期:1999.10
A convenient route for the synthesis of enantiopure 10-bornanesulfinic acid derivatives from (1S)-camphorsulfonyl chloride is described. An interesting epimerization at sulfur in five-membered sultines is observed, leading to diastereoisomerically pure (S-s)-10-isobornyl sulfinates. A large difference in solubility in organic solvents allowed (R-s)-2-oxo-10-bornanesulfinamide to be obtained as the major diastereoisomer. Cyclization of 2-oxo-10-bornanesulfinamides gave five-membered sulfinimines. (C) 1999 Elsevier Science Ltd. All rights reserved.