Dioxa- et dithiagermoles: synthese et quelques aspects de leur reactivite
1985
Abstract Synthetic methods to obtain new dioxagermoles and dithiagermoles are described. Dioxagermoles decompose to germylenes and α-diketone on thermolysis, and formation of cyclotrigermathianes (R 2 GeS) 3 from dithiagermoles is observed at about 200°C via a R 2 GeS intermediate. Exchange reactions between dioxagermoles or dithiagermoles and thiophosgene give a dioxolethione and a dithiolethione, respectively. In the exchange reaction between dithia- and dioxa-germoles with GeCl 2 ·dioxane, formation of new stable unsaturated germylenes is observed.
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