Synthesis 2016; 48(13): 2112-2120
DOI: 10.1055/s-0035-1561593
paper
© Georg Thieme Verlag Stuttgart · New York

Regioselective Michael Addition of Anthrone to Methylene­indolinones

Huaili Zhao
a   College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, No. 700, Changcheng Road, Qingdao, 266109, P. R. of China
,
Xiaoxiao Wang
b   College of Chemical Engineering, Qingdao University of Science and Technology, No. 53, Zhengzhou Road, Qingdao, 266042, P. R. of China   Email: chemjianxiao@163.com
,
Liang Wang*
a   College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, No. 700, Changcheng Road, Qingdao, 266109, P. R. of China
,
Jian Xiao*
a   College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, No. 700, Changcheng Road, Qingdao, 266109, P. R. of China
› Author Affiliations
Further Information

Publication History

Received: 10 December 2015

Accepted after revision: 04 March 2016

Publication Date:
18 April 2016 (online)


Abstract

Regioselective Michael addition of anthrone to methylene­indolinones catalyzed by Et3N was developed. The reaction furnished structurally interesting hybrid derivatives of oxindoles and anthrones in high yield, high regioselectivity, and high diastereoselectivity. Electronic effects had a dramatic influence on both the regioselectivity and ­diastereoselectivity, which could be finely tuned by changing the substituents on the methyleneindolinones.

Supporting Information