Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
ISSN-L : 0366-7022
Reactions of 1,1′-Dialkynylferrocene with Octacarbonyldicobalt
Kiyotaka OnitsukaXin-Qung TaoYasuhiro OtsukaKenkichi Sonogashira
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1993 Volume 22 Issue 8 Pages 1353-1356

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Abstract

The reaction of 1,1′-dialkynylferrocene (η5-C5H4C≡CR)2Fe (1) (R = Ph, SiMe3, Me, Fc; Fc = ferrocenyl) with excess octacarbonyldicobalt (2) results in the formation of dark green complexes (η5-C5H4C≡CR)2Fe{Co2(CO)6}2 (3) (R = Ph, SiMe3, Me, Fc), in which a Co2(CO)6 group coordinates to each of the two C≡C bonds of 1. When 1,1′-di(phenylethynyl)ferrocene (1a) was treated with an equimolar amount of 2, (η5-C5H4C≡CPh)2Fe{Co2(CO)6}, as well as 3a, was obtained.

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© 1993 The Chemical Society of Japan
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