Asymmetric synthesis of (R)- and (S)-methyl (2-methoxy-carbonylcyclopent-2-enyl)acetate and (R)- and (S)-2-(2-hydroxy-methyl-cyclopent-2-enyl)ethanol
摘要:
(R)- and (S)-Methyl (2-methoxycarbonylcyclopent-2-enyl)aceta I and (R)and (S)-2-(2-hydroxymethyl-cyclopent-2-enyl)ethanol 2 have been obtained from dimethyl (E,E)-octa-2,6-diendioate 3 by a diastereoselective tandem conjugate addition protocol, from (R)- and (S)-lithium (alpha-methylbenzyl)benzylamide 4 respectively. (C) 1997 Elsevier Science Ltd.