Research on carbon—carbon coupling reactions of haloaromatic compounds mediated by zerovalent nickel complexes. Preparation of cyclic oligomers of thiophene …

Z Zhou, T Yamamoto

Index: Zhou, Zhen-hua; Yamamoto, Takakazu Journal of Organometallic Chemistry, 1991 , vol. 414, # 1 p. 119 - 127

Full Text: HTML

Citation Number: 57

Abstract

Abstract Dehalogenative carbon—carbon coupling reactions of 3, 4-dibromothiophene, 1, 2- dihalobenzenes and 9-bromoanthracene using zerovalent nickel complexes as a dehalogenating reagent produced respectively cyclotetrathiophene, triphenylene and 9,′ 9- bianthracene in good yields. However, two extremely stable arylnickel (II) complexes, Ni (10- X-9-anthryl) X (PPh 3) 2 (X= Br, Cl), where the 10-C X bond in the anthryl groups was ...