Diastereoselectivities Realized in the Amino Acid Catalyzed Aldol Cyclizations of Triketo Acetonides of Differing Ring Size
作者:Kohei Inomata、Matthieu Barragué、Leo A. Paquette
DOI:10.1021/jo0486084
日期:2005.1.1
study designed to assess the diastereoselectivity of the intramolecular aldol reaction of two differently sized monocyclic 1,3-diketones bearing a chiral, oxygenated side chain has been undertaken. The cyclizations were brought about under catalysis by pyrrolidine, a series of d- and l-amino acids including proline, and several proline derivatives. The levels of selectivity were found to be consistently
进行了一项研究,以评估带有手性,含氧侧链的两个不同大小的单环1,3-二酮的分子内羟醛反应的非对映选择性。该环化反应是由吡咯烷催化下带来了一系列d -和升-氨基酸,包括脯氨酸和几个脯氨酸衍生物。发现六元环系统的选择性水平始终高于其环庚烷对应物。