title: Ring-opening reaction of 2,5-dioctyldithieno[2,3-b:3',2'-d]thiophene in the presence of aryllithium reagents.
abstract: In this paper, the ring-opening reaction of 2,5-dioctyldithieno[2,3-b:3',2'-d]thiophene with aryllithium in THF at low temperature to generate 2'-arylthio-3,3'-bithiophene-2-carbaldehydes is studied. Nine examples are explored and all the products are characterized by (1)H NMR, (13)C NMR and HRMS. The relative relationship between the structures of aryl groups and the efficiency of ring-opening reactions are discussed.
authors.affiliation: Key Lab for Special Functional Materials of Ministry of Education, Henan University, Kaifeng, 475004, China.
authors.forename: Hao
authors.initials: H
authors.lastname: Zhong
authors.forename: Jianwu
authors.initials: J
authors.lastname: Shi
authors.forename: Jianxun
authors.initials: J
authors.lastname: Kang
authors.forename: Shaomin
authors.initials: S
authors.lastname: Wang
authors.forename: Xinming
authors.initials: X
authors.lastname: Liu
authors.forename: Hua
authors.initials: H
authors.lastname: Wang
keywords: 2'-arylthio-3,3'-bithiophene-2-carbaldehyde; aryllithium reagents; dithieno[2,3-b:3',2'-d]thiophene; nucleophilicity; ring-opening reaction