945682-97-3Relevant academic research and scientific papers
Formation of germenes from bis(germavinylidene)
Leung, Wing-Por,Kan, Kwok-Wai,So, Cheuk-Wai,Mak, Thomas C. W.
, p. 3802 - 3806 (2007)
A series of germenes have been synthesized from the bis(germavinylidene) [(Me3SiN=PPh2)2C= Ge→Ge=C(PPh 2=NSiMe3)2] (1). The reaction of 1 with 2,2,6,6-tetramethylpiperidine N-oxide afforded [(Me3SiN=PPh 2)2C=Ge(ONCMe2C3H 6CMe2)2] (2). Germavinylidene, the dissociation derivative of 1, underwent [1+4] cycloaddition with azobenzene, followed by a 1,3-H shift to give [(Me3SiN=PPh2)2C= Ge(o-C6H4NHNPh)] (3). Treatment of 1 with benzil afforded the [1 + 4] cycloaddition compound [(Me3-SiN=PPh2) 2C=Ge{O(Ph)C=C(Ph)O}] (4). The results showed that the germavinylidene moiety dissociated from 1 acts as a synthon for the preparation of various germenes by addition to the germanium-(II) center. The molecular structures of 2-4 have been determined.
