Synlett 2021; 32(19): 1963-1968
DOI: 10.1055/a-1608-5381
letter

Ru(II)-Catalyzed C–H Activation Reaction between 2-Phenyl­quinazolinone and Vinylene Carbonate

Yuncan Chen
a   West China Hospital, Sichuan University, No. 37 Guoxue Lane, Chengdu, Sichuan 610041, P. R. of China
b   Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, No. 17 Southern Renmin Road, Chengdu, Sichuan 610041, P. R. of China
,
Xin Huang
b   Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, No. 17 Southern Renmin Road, Chengdu, Sichuan 610041, P. R. of China
,
Yingying Xu
b   Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, No. 17 Southern Renmin Road, Chengdu, Sichuan 610041, P. R. of China
,
Jianglian Li
b   Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, No. 17 Southern Renmin Road, Chengdu, Sichuan 610041, P. R. of China
,
Ruizhi Lai
b   Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, No. 17 Southern Renmin Road, Chengdu, Sichuan 610041, P. R. of China
,
Mei Guan
a   West China Hospital, Sichuan University, No. 37 Guoxue Lane, Chengdu, Sichuan 610041, P. R. of China
,
Yong Wu
b   Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, No. 17 Southern Renmin Road, Chengdu, Sichuan 610041, P. R. of China
› Author Affiliations
We are grateful for the support from the National Natural Science Foundation of China (NSFC; 81602954, 81573286, 81373259, and 81773577).


Abstract

In the report, we described the ruthenium(II)-catalyzed C–H activation/cyclization of 2-arylquinazolinones with vinyl carbonate for the synthesis of different fused quinazolinones. Through this strategy, the 6-hydroxy-5,6-dihydro-8H-isoquinolino[1,2-b]quinazolin-8-one and 8H-isoquino[1,2-b] quinazolin-8-one have been obtained, respectively, under different temperatures. Additionally, the reaction features broad substrate scope and good yields, only producing carbon dioxide as byproduct. Moreover, we performed preliminary mechanistic studies of this reaction and proposed a possible mechanism.

Supporting Information



Publication History

Received: 14 July 2021

Accepted after revision: 24 August 2021

Accepted Manuscript online:
24 August 2021

Article published online:
18 October 2021

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