Several protected β-aminophosphine oxides have been synthesised and investigated in the Horner–Wittig addition reaction. Crystal structures of an enantiomerically pure β-amino phosphine oxide and a Horner–Wittig addition product are presented. Horner–Wittig reactions were typically poorly stereoselective, although the ratio of diastereoisomers can be influenced by the addition of lithium bromide.
                                    在Horner-Wittig加成反应中已经合成并研究了几种受保护的β-
氨基膦氧化物。介绍了对映体纯的β-
氨基氧化膦和Horner-Wittig加成产物的晶体结构。尽管非对映异构体的比例会受到
溴化锂的影响,但霍纳-维蒂希反应的立体选择性通常较差。