Préparation d'aminométhyltributylétains par stannylation de sels d'immonium au moyen du chlorure de tributylstannylmagnésium. Applications à la synthèse de β-aminoalcools
Tributylstannylmagnesium chloride reacts with immonium salts and gives non-substituted, α-substituted or α,α-disubstituted aminomethyltributyltins. The reaction, which can be extended to stannylation by tributylstannylalkalis, is not affected by the nature of the anionic part of the immonium salt. Transmetallation of aminomethyltributyltins with butyllithium, followed by condensation with carbonyl compounds