Synthesis of highly crowded cyclopentadienes via reactions of Cp 2 Ni and CpSn (CH 3) 3 with triarylmethylhalogenides. Molecular structure of 1-(CH 3) 3 Si (3-Ph 3 …

…, AV Churakov, DA Lemenovskii, LG Kuz'mina

Index: Rufanov, Konstantin A.; Kazennova, Nadezhda B.; Churakov, Andrew V.; Lemenovskii, Dmitry A.; Kuz'mina, Ludmila G. Journal of Organometallic Chemistry, 1995 , vol. 485, # 1-2 p. 173 - 178

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Citation Number: 11

Abstract

Triphenylmethylcyclopentadiene Ph3CC5H5 (1) and 2-[tris-(2′-methoxyphenyl) methyl] cyclopentadiene 2-((2′-CH3OC6H4) 3 C) C5H5 (2) have been prepared in high yields via reactions of the corresponding triarylmethyl-halogenides with Cp2Ni (and CpSn (CH3) 3 in the case of 1). It is shown that 3-tritylsubstituted 6, 6-dimethylfulvene formed exclusively in the reaction between the lithium salt of 1 and acetone. Cyclopentadiene 2 exists only as ...