Stereoregulations of Pyrimidinone Based Chiral Auxiliary in Aldol and Alkylation Reactions: A Convenient Route to Oxyneolignans
作者:Mangilal Chouhan、Ratnesh Sharma、Vipin A. Nair
DOI:10.1021/ol302653g
日期:2012.11.16
a chiral auxiliary for asymmetricacetate and propionate aldol reactions, by generation of titanium and lithium enolates, affording excellent yields and stereoselectivities for syn and anti aldol diastereomers, respectively. High stereoselectivities were also obtained in lithium mediated alkylation reactions. The application of the auxiliary was exemplified in the asymmetric synthesis of a natural