Toward the Development of a General Chiral α-Substituted Acetate Enolate Synthon for Aldolization. DMAP- and NEt3-Promoted Oxazolidinethione “Deacylation”
Al–Hg promoted chemoselective dehalogenation of halohydrin aldol adducts
作者:Ying-Chuan Wang、Tu-Hsin Yan
DOI:10.1039/b000335m
日期:——
Al–Hg mediated chemoselective cleavage of the carbon–halogenbond of α-halocarboxylates allows for a facile and clean transformation of halohydrin aldol adducts into β-hydroxy acid derivatives with no evidence of dehydroxyhalogenation.
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.
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