The Direct Organocatalytic Asymmetric Mannich Reaction: Unmodified Aldehydes as Nucleophiles
作者:Wolfgang Notz、Fujie Tanaka、Shin-ichi Watanabe、Naidu S. Chowdari、James M. Turner、Rajeswari Thayumanavan、Carlos F. Barbas
DOI:10.1021/jo0347359
日期:2003.12.1
The unprecedented application of unmodified aldehydes as nucleophilic donors in direct catalytic asymmetric Mannich-type reactions is disclosed in a full account. Our efforts in broadening the applicability of chiral pyrrolidine-based catalysts in direct asymmetric Mannich-type reactions led to the highly diastereo- and enantioselective and concise synthesis of functionalized alpha- and beta-amino
完整地公开了未修饰的醛作为亲核供体在直接催化不对称曼尼希型反应中的空前应用。我们在拓宽手性吡咯烷基催化剂在直接不对称曼尼希型反应中的适用性的努力导致官能化的α-和β-氨基酸,β-内酰胺和氨基醇的高度非对映异构和对映选择性和简洁的合成。