DMAP-promoted racemization-free deacylation of carboxthioimide† adducts: carboxthioimide as a versatile carboxy protecting group
作者:Dah-Wei Su、Ying-Chuan Wang、Tu-Hsin Yan
DOI:10.1039/a900577c
日期:——
The DMAP-promoted deacylation of carboxthioimide adducts can be directed to form either acid or various ester protecting groups with no detectable levels of epimerization.
A New Approach for the Chemoselective Debromination of Chiral Bromohydrins. Toward the Development of a Very General Approach to Enantiopure α-Unsubstituted β-Hydroxy Acids
作者:Ying-Chuan Wang、Tu-Hsin Yan
DOI:10.1021/jo000124u
日期:2000.10.1
Toward the Development of a General Chiral α-Substituted Acetate Enolate Synthon for Aldolization. DMAP- and NEt<sub>3</sub>-Promoted Oxazolidinethione “Deacylation”
作者:Ying-Chuan Wang、Dah-Wei Su、Chen-Men Lin、Hsi-Liang Tseng、Chi-Lung Li、Tu-Hsin Yan
DOI:10.1021/jo990444h
日期:1999.8.1
An efficient method for the synthesis of enantiopure cis-α,β-epoxy acids
作者:Ying-Chuan Wang、Chi-Lung Li、Hsi-Liang Tseng、Shang-Chi Chuang、Tu-Hsin Yan
DOI:10.1016/s0957-4166(99)00320-1
日期:1999.8
Enantiopure cis-alpha,beta-epoxy acids were prepared via a modified Darzen's reaction employing the titanium-mediated bromination-aldolization of chiral acetate thioimide enolate. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.