N-((Trimethykily1) methyl) imines and heterocumulenes bearing a (trimethylsily1) methyl group adjacent to the cumulene moiety (abbreviated as TMSM-heterocumulenes) are useful reagenb in the field of heterocyclic synthesis. The only derivative of N-((trimethylsily1)- methy1) imine reported to date, N-benzylidene (tri-methylsilyl) methylamine,'has been found to be a useful precursor for the nonstabilized azomethine ylide 1, 3-dipole2 and the ...
