New Diazasilaphosphetidines and their Precursors
نویسندگان
چکیده
A series of aminosilanes (R 'HNbSiR: have been prepared. In case of bulky substituents R' the aminolysis of Ph^SiCb stops at the (R'HN)ClSiPh2 stage. Replacement of the Cl atom is achieved with LiNHR' which allows the synthesis of mixed bisaminosilanes (R'HN)(R"HN)SiPh2 . The X-ray structures of three of these compounds have been determined. There are no intermolecular N-H -N hydrogen bonds in these compounds in the solid state. Several 1,3,2,4-diazaphosphetidines have been synthesized using bis(N-lithioamino)silanes and bis(N-lithioamino)phosphanes . Amongst these the heterocycle 18 possesses an almost planar four membered NiSiP ring system.
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