Reactions of Difluorosilylene with Amines, Phosphines and Halomethanes The First Evidence of the Insertion of Difluorosilylene into Tetrafluorosilane

CW Chang, CS Liu, CY Lee

Index: Chang, Chih-Wei; Liu, Chao-Shiuan; Lee, Chi-Young Journal of the Chinese Chemical Society, 1999 , vol. 46, # 3 p. 445 - 452

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Abstract

Abstract The reactions of SiF 2/SiF 4 with amines, phosphines and various halomethanes were studied. The results show that in the presence of strong Lewis base (Et 3 N, HNEt 2, PR 3, PR 2 Cl), SiF 2 inserts initially into SiF 4 to form Si 2 F 6, which was followed by subsequent reactions leading to products containing SiF 3 groups. This is the first report of the insertion of SiF 2 into SiF 4. When the reactants were a weaker base (such as RPCl 2, ...