@article{130c873a55cc4ee8818cfa3fcdba75ba,
title = "Diastereoselective conjugate addition of thiols to camphor pyrazolidinone derived chiral α,β-unsaturated carbonyls: Synthesis of β-mercaptocarboxylic acid derivatives",
abstract = "Reaction of chiral α,β-unsaturated carboxylic acid derivatives 2a-e derived from camphor pyrazolidinone 1 with thiols affords β-mercaptocarboxylic acid derivatives 3a-e with a wide range of stereoselectivities (up to > 90% de). The stereoselectivity as a function of Lewis acid is described. The auxiliary can be easily recovered from the Michael adducts under mild conditions. (C) 2000 Elsevier Science Ltd.",
author = "Lin, {C. H.} and Yang, {K. S.} and Pan, {J. F.} and K. Chen",
note = "Funding Information: Financial support by the National Science Council of the Republic of China and the collection and processing of the X-ray data for 2b – c , 2e , 3a (R 3 =CH 2 CH 2 CO 2 Me) and 3e (R 1 =β-Me, R 3 =COPh) by Professor C.-H. Ueng (National Taiwan Normal University) and the Taipei Instrumentation Center, College of Science (National Taiwan University), are gratefully acknowledged. ",
year = "2000",
month = aug,
day = "26",
doi = "10.1016/S0040-4039(00)01157-6",
language = "English",
volume = "41",
pages = "6815--6819",
journal = "Tetrahedron Letters",
issn = "0040-4039",
publisher = "Elsevier Limited",
number = "35",
}