Reactions of 2,2-dialkyl-1-oxa-3-aza-2-stannacyclopentanes and 2,2-dialkyl-1,3-diaza-2-stannacyclopentanes with carbon disulfide and phenyl isothiocyanate
作者： Shizuyoshi Sakai , Yoji Fujimura , Yoshio Ishii
DOI: 10.1016/S0022-328X(00)95096-4
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摘要: Abstract Contrary to the reaction of 2,2-dialkyl-1-oxa-3-aza-2-stannacyclopentane with carbon disulfide at room temperature which yields oxazolidine-2-thione and dialkyltin sulfide, N-substituted gave a stable 1/1 adduct across SnN bond 0°, afforded mixture thiazolidine-2-thione moderate temperature. Phenyl isothiocyanate reacted 3-methyl-2,2-dibutyl-1-oxa-3-aza-2-stannacyclopentane form 2-phenylimino-1,3-thiazolidine -oxazolidine. The unusual effect N-methyl substituent in dialkyl-1-oxa-3-aza-2-stannacyclopentane is reported. 1,3-Dimethyl-2-dibutyl-1,3-diaza-2-stannacyclopentane 0° give N,N′-dimethylimidazolidine-2-thione small amount 1/2 could not be converted imidazolidine-2-thione but an insoluble matter by heating it vacuo 150°.
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