Highly stereoselective synthesis of indanes with four stereogenic centers via sequential Michael reaction and [3+2] cycloaddition
作者:Pei Juan Chua、Bin Tan、Limin Yang、Xiaofei Zeng、Di Zhu、Guofu Zhong
DOI:10.1039/c0cc01577f
日期:——
A highly efficient organocatalytic sequential reaction involving Michaeladdition of bis(phenylsulfonyl)ethylene, in situ condensation and intramolecular nitrone [3+2] cycloaddition with a variety of aldehydes and hydroxyamines to afford a single diastereomer of indanes with four stereogenic centers in excellent yields and stereoselectivities was developed.