Tetrasubstituted (Z)-alkenes were readily prepared through the Horner-Wadsworth-Emmons reactions of methyl 2-[bis(2,2,2-trifluoroethyl)phosphono]propionate with aryl alkyl ketones by employing Sn(OSO(2)CF(3))(2) and N-ethylpiperidine.
通过使用Sn(OSO(2)CF(3),将2- [双(
2,2,2-三氟乙基)
膦酸]
丙酸甲酯与芳基烷基酮通过Horner-Wadsworth-Emmons反应轻松制备四取代(Z)-烯烃))(2)和
N-乙基哌啶。