Dimethyl (alkylthio)- und Dimethyl(arylthio)gallane – Darstellung und Eigenschaften / Dimethyl(alkylthio)- and Dimethyl(arylthio)gallanes – Synthesis and Properties

Abstract

The nucleophilic substitution reactions between dimethylgalliumchloride (1) and the silyl sul­fides (CH3)3SiSR (R = CH3, C2H5, n-C3H7, i-C3H7, Ph and CH2Ph) (2-7) in benzene result in the formation of the moisture-sensitive dimethyl(alkylthio)- and dimethyl(phenylthio)gallanes (CH3)2GaSR (R = CH3, C2H7, n-C3H7, i-C3H7, Ph and CH2Ph) (8-13). Compounds 8-11 are trimeric in benzene solutions, whereas compounds 12 and 13 appear to be monomeric. The synthesis of dimethylgalliumchloride starting from trimethylgallane or methylgalliumdichloride and galliumtrichloride is reported as well.