of a chiral ferrocenylphospine-gold(I) catalyst gave high yields of optically active trans-5-alkyl-2-oxazoline-4-phosphonates with % ee ranging between 88%–96%, which were readily converted to phosphonic acid analogs of optically active phenylalanine and β-alkylserines.
醛的反应(R 1 CHO,R 1 =苯基,-Pr,3,4-OCH 2 OC 6 ħ 3)和(异
氰基甲基)
膦酸酯(CNCH 2 P(O)(OR 2)2,R 2 = Et,Ph)在1 mol%手性
二茂铁二茂铁磷-
金(I)催化剂的存在下,可产生高光学活性的反式-5-烷基-2-
恶唑啉-4-
膦酸酯,ee的百分比介于88%至96%之间,它们很容易转化为旋光性苯丙
氨酸和β-烷基
丝氨酸的
膦酸类似物。