Journal of Organometallic Chemistry

1, 1, 3, 3-tetramethyl-2, 2, 4, 4-tetrakis (trimethylsilyl)-1, 3-disilacyclobutane and its 1, 3-digerma and 1, 3-distanna analogs: Unexpected products from the reaction of …

D Seyferth, JL Lefferts

Index: Seyferth,D.; Lefferts,J.L. Journal of Organometallic Chemistry, 1976 , vol. 116, p. 257 - 273

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Citation Number: 33

Abstract

Abstract The reaction of bis (trimethylsilyl) bromomethyllithium with the dimethyldihalo derivatives of silicon, germanium and tin in each case gave the respective 1, 1, 3, 3- tetramethyl-2, 2, 4, 4-tetrakis (trimethylsilyl)-1, 3-dimetallacyclobutane as the major product. Since the tin compound was the first 1, 3-distannacyclobutane to be prepared, its structure was confirmed by ring cleavage reactions with bromine in CCl 4, to give BrMe 2 SnC ( ...