The s- vs. p-character of title allylmetal compds. was studied via 13C NMR of R2CR1:CRCH2N (R = H, Me2CH, Me3C, R1 = R2 = H; R = R1 = H, R2 = Me; R = H, R1 = R2 = Me; M = Li, K, MgBr) and of deuterated derivs. [on SciFinder (R)]