N,N-(Dimethylamino)-2-pyrrolidinones from the Rearrangement of N-Allyl-N‘,N‘-dimethyl-2,2-dichlorohydr- azides Promoted by CuCl−N,N,N‘,N‘-Tetramethylethylendiamine
N,N-(Dimethylamino)-2-pyrrolidinones from the Rearrangement of N-Allyl-N‘,N‘-dimethyl-2,2-dichlorohydr- azides Promoted by CuCl−N,N,N‘,N‘-Tetramethylethylendiamine