Chiral β-dimethylaminoalkylphosphines. Highly efficient ligands for a nickel complex catalyzed asymmetric grignard cross-coupling reaction
作者:Tamio Hayashi、Motoo Fukushima、Mitsuo Konishi、Makoto Kumada
DOI:10.1016/s0040-4039(00)93629-3
日期:——
Chiral β-dimethylaminoalkylphosphines were prepared starting with amino acids, (S)-alanine, (S)-phenylalanine, (R)-phenylglycine, (S)-valine, and (R)-tert-leucine. The chiral phosphines were found to be highly efficient ligands for a nickel catalyzed asymmetric Grignard cross-coupling reaction (38∼94% optical yield).
从氨基酸,(S)-丙氨酸,(S)-苯丙氨酸,(R)-苯甘氨酸,(S)-缬氨酸和(R)-叔亮氨酸开始制备手性β-二甲基氨基烷基膦。发现手性膦是镍催化的不对称格利雅(Grignard)交叉偶联反应的高效配体(光学收率38〜94%)。