Volume 39, Issue 1 pp. 87-92
Concise Report

Copper-Catalyzed Aerobic Oxidative Ring Expansion of Isatins: A Facile Entry to Isoquinolino-Fused Quinazolinones

Dahan Wang

Dahan Wang

Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, Hunan Province Key Laboratory of Green Organic Synthesis and Application, College of Chemistry, Xiangtan University, Xiangtan, Hunan, 411105 China

Search for more papers by this author
Fuhong Xiao

Corresponding Author

Fuhong Xiao

Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, Hunan Province Key Laboratory of Green Organic Synthesis and Application, College of Chemistry, Xiangtan University, Xiangtan, Hunan, 411105 China

E-mail: [email protected], [email protected]Search for more papers by this author
Feng Zhang

Feng Zhang

Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, Hunan Province Key Laboratory of Green Organic Synthesis and Application, College of Chemistry, Xiangtan University, Xiangtan, Hunan, 411105 China

School of Chemistry and Materials Science, Hunan Agricultural University, Changsha, Hunan, 410128 China

Search for more papers by this author
Huawen Huang

Huawen Huang

Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, Hunan Province Key Laboratory of Green Organic Synthesis and Application, College of Chemistry, Xiangtan University, Xiangtan, Hunan, 411105 China

Search for more papers by this author
Guo-Jun Deng

Corresponding Author

Guo-Jun Deng

Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, Hunan Province Key Laboratory of Green Organic Synthesis and Application, College of Chemistry, Xiangtan University, Xiangtan, Hunan, 411105 China

E-mail: [email protected], [email protected]Search for more papers by this author
First published: 03 August 2020
Citations: 25

Abstract

A copper-catalyzed aerobic oxidative ring expansion reaction of isatins with 1,2,3,4-tetrahydroisoquinoline for the synthesis of tetracyclic quinazolinones has been developed. This reaction is performed smoothly under simple conditions to give the corresponding products in moderate to good yields with good functional group tolerance. The capacity of the resultant 5H-isoquinolino[1,2-b]quinazolin-8(6H)-one for a range of palladium-catalyzed directing C—H activation has been further demonstrated, thus giving a broader access to diverse tetracyclic quinazolinones.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.