Wohl; Momber, Chemische Berichte, 1914, vol. 47, p. 3349
作者:Wohl、Momber
DOI:——
日期:——
WO2007/29650
申请人:——
公开号:——
公开(公告)日:——
Wohl; Schweitzer, Chemische Berichte, 1907, vol. 40, p. 96
作者:Wohl、Schweitzer
DOI:——
日期:——
New chloramphenicol Schiff base ligands for the titanium-mediated asymmetric aldol reaction of α,β-unsaturated aldehydes with diketene: a short synthesis of atorvastatin calcium
Several novel chiral Schiff base ligands were prepared from a commercially available chloramphenicol base and applied to the titanium-mediated asymmetricaldolreaction of diketene with various α,β-unsaturated aldehydes. This reaction proceeded in good yield with high enantioselectivity. The synthetic utility of this methodology was demonstrated in the short synthesis of atorvastatin calcium.