Préparation d'aminométhyltributylétains par stannylation de sels d'immonium au moyen du chlorure de tributylstannylmagnésium. Applications à la synthèse de β-aminoalcools
作者:Bernard Elissondo、Jean-Baptiste Verlhac、Jean-Paul Quintard、Michel Pereyre
DOI:10.1016/s0022-328x(00)99388-4
日期:1988.2
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
氯化三丁基锡烷基镁与铵盐反应,得到未取代的,α-取代的或α,α-二取代的氨基甲基三丁基锡。该反应可以通过三丁基锡烷基烷基扩展到甲氧基化反应,而不受铵盐阴离子部分性质的影响。氨基甲基三丁基锡与丁基锂的金属转移,然后与羰基化合物缩合,提供了一种针对β-氨基醇的区域特异性途径。