Abstract Pyrolysis of dimethoxymethylsilyl-bis (trimethylsilyl) amine has been carried out at low pressure. 1, 2-Elimination of trimethylmethoxysilane gives N- trimethylsilylmethoxymethylsilaimine (II). 1, 3-Sigmatropic rearrangements of II gives N- methoxydimethylsilyldimethylsilaimine (VII). Addition of trimethylmethoxysilane to VII gives trimethylsilyl-bis (methoxydimethylsilyl) amine (VIII) which may lose ...