l)methyl)pyrrolidine], in the presence of catalytic amounts of Zn(OCOCF3)2 and potassium bis(trimethylsilyl)amide (KHMDS). Our previously reported ruthenium complex, [Ru(OCOCF3)2(dppea)2] (8 a), was the catalyst precursor for the imine synthesis, whereas [Ru(OCOCF3)2(S)‐dppmp}2] (8 d), which was derived from the treatment of 6 d with Zn(OCOCF3)2 and characterized by single‐crystal X‐ray analysis,
在催化量的Zn(OCOCF 3)存在下,通过使用
钌络合物[RuCl 2(dppea)2 ](6 a:dppea = 2-
二苯基膦基乙胺),开发了从多种醇和胺中选择性合成
亚胺的方法。)2和KO t Bu,而使用另一种
钌络合物[RuCl 2 (S)-dppmp} 2 ] [ 6 d:(S)-dppmp =(S)-2-(((
二苯基膦基)甲基)
吡咯烷],在催化量的Zn(OCOCF 3)2和双(三甲基甲
硅烷基)酰胺
钾盐(K
HMDS)。我们先前报道的
钌络合物[Ru(OCOCF 3)2(dppea)2 ](8 a)是
亚胺合成的催化剂前体,而[Ru(OCOCF 3)2 (S)-dppmp} 2 ](8 d),其源自用Zn(OCOCF 3)2处理6 d并通过单晶X射线分析表征,是形成酰胺的前催化剂。对照实验表明,
锌盐起着用
三氟乙酸根阴离子代替
氯离子的作用。基于时程研究,Hammett图和
氘标记实验,