Abstract
Resume The adducts of some germaoxazolidines and germadiazolidines with CS2 or PhNCS give by β-elimination reactions transient dialkylgermathione, R2GeS, which is characterized by addition on the germanium—sulfur bond of Et3GeSMe and by insertion and ring expansion reactions with ethylene oxide or thiirane and formation of germaoxathiolane or germadithiolane. The equilibrium between monomeric (Et2GeS) and trimeric species (Et2GeS)3 is established. The desulfuration reaction of germadithiolane by tributylphosphine leads to germathione probably via transient germathlacyclobutane.
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