Preparation, methylation, and coupling reaction of 1,2-dithienyl-3,4- bis[(2,4,6-tri-t-butylphenyl)phosphinidene]cyclobutenes

Kozo Toyota, Keita Abe, Keiko Horikawa, Masaaki Yoshifuji

研究成果: Article

22 引用 (Scopus)

抜粋

Sterically protected 1,2-di(2-thienyl)- and 1,2-di(3-thienyl)-3,4-bis[(2,4, 6-tri-t-butylphenyl)phosphinidene]cyclobutenes were prepared and their properties were studied. When the dithienyldiphosphinidenecyclobutenes were allowed to react with butyllithium and then with iodomethane, the corresponding methylthienyl derivatives were obtained. The structure of (E,E)-1,2-bis(5- methyl-3-thienyl)-3,4-bis[(2,4,6-tri-t-butylphenyl)phosphinidene]cyclobutene was analyzed by X-ray crystallography. Lithiation of the dithienyldiphosphinidenecyclobutenes, followed by treatment with CuCl 2, afforded the corresponding coupling products on the thiophene rings.

元の言語English
ページ(範囲)1377-1383
ページ数7
ジャーナルBulletin of the Chemical Society of Japan
77
発行部数7
DOI
出版物ステータスPublished - 2004 7 1

ASJC Scopus subject areas

  • Chemistry(all)

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