Kinetics of the reactions of nine symmetrically substituted 1,3-diarylallyl cations with different nucleophiles were studied photometrically in dichloromethane, acetonitrile, and DMSO solutions. The second-order rateconstants k2 were found to follow the correlation log k2 = sN(N + E). The electrophilicity parameters E of the title cations were derived, using the known values of sN and N of the nucleophilic
conditions. In the presence of B(C6F5)3, wide-spectrum P–H species, including dialkylphosphite, hypophosphite ester, and secondaryphosphine oxides, can be successfully incorporated into the dehydrative cross-coupling process with allylic alcohols delivering the corresponding allylic organophosphorus compounds in high yields.
在无金属和无溶剂的条件下开发了一种环境友好的C-P键构建方案。在存在B(C 6 F 5)3的情况下,可以将广谱的P–H物质(包括亚磷酸二烷基酯,次磷酸酯和仲膦氧化物)成功地引入脱水交叉偶联过程中,其中烯丙醇可提供相应的烯丙基有机磷化合物高产。