diorganocuprates in their alkyl coupling in THF depends on N- or O-donor solvents as cosolvents. Selective n-Bu group transfer is observed in room temperature alkylation of Grignard reagent derived stoichiometric n-BuPhCuMgBr reagent in THF:cosolvent and solvation effects do not change the group transfer ability. However, in the alkylation of catalytic mixed cuprates derived from CuI catalyzed n-BuPh2ZnMgBr
混合的二有机
癸酸酯在烷基在THF中的偶联中,有机基转移的选择性和/或反应性取决于N-或O-供体溶剂作为助溶剂。在THF:助溶剂中,在Grignard试剂衍生的
化学计量n- BuPhCuMgBr试剂的室温烷基化中观察到选择性n- Bu基团转移,并且溶剂化作用不会改变基团转移能力。然而,在催化混合
铜酸盐的烷基化从催化的CuI衍生Ñ -BuPh 2 ZnMgBr和Ñ -Bu 2 PhZnMgBr,基团转移能力取决于溶剂化作用,它可以通过使用N-或O-供体的溶剂进行控制。在CuI催化的烷基化混合
锌酸盐n- BuPh的烷基化中2 ZnMgBr并且还Ñ -Bu 2 PhZnMgBr在THF中在回流温度下Ph基团转移发生(Ñ -Bu /植转印比为1:9和4:分别为6,),而Ñ在THF -Bu转印增加:
NMP(1 :1)的n -Bu / Ph转移比分别为4:6和8:2。n -BuPhZn的
烯丙基化中的基团