Imidazolidinone based chiral auxiliary mediated acetate aldol reactions of isatin derivatives and stereoselective synthesis of 3-substituted-3-hydroxy-2-oxindoles
作者:Mukesh Gangar、Naresh Kashyap、Kapil Kumar、Sandeep Goyal、Vipin A. Nair
DOI:10.1016/j.tetlet.2015.11.007
日期:2015.12
Acetate aldol reactions of (S)-4-isopropyl-1-[(R)-1-phenylethyl]imidazolidin-2-one chiralauxiliary have been optimized with high yields and diastereoselectivity on various N-substituted isatins. The standardized reaction condition was employed for the stereoselectivesynthesis of furoindolines, and the pyrroloindole based natural products flustraminol B and N-benzyl alline.