Yb(OTf)3-catalyzed Mannich-type reaction of a chiral non-racemic silyloxypyrrole
摘要:
A Yb(OTf)(3)-catalyzed Mannich-type reaction of the chiral non-racemic silyloxypyrrole 2 is described. The three-component (silyloxypyrrole, aldehyde and amine) reaction allowed the use of aromatic as well as aliphatic enolisable aldehydes. The erythro selectivity was proved by chemical correlation and X-ray analysis. (C) 2000 Elsevier Science Ltd. All rights reserved.
Yb(OTf)3-catalyzed Mannich-type reaction of a chiral non-racemic silyloxypyrrole
摘要:
A Yb(OTf)(3)-catalyzed Mannich-type reaction of the chiral non-racemic silyloxypyrrole 2 is described. The three-component (silyloxypyrrole, aldehyde and amine) reaction allowed the use of aromatic as well as aliphatic enolisable aldehydes. The erythro selectivity was proved by chemical correlation and X-ray analysis. (C) 2000 Elsevier Science Ltd. All rights reserved.