2-(diisoproylphosphanyl)-1-phenylpyrrole;2-(diisopropylphosphino)-1-phenylpyrrole;2-(diisopropylphosphino)-1-phenyl-1H-pyrrole;2-[Bis(1-methylethyl)phosphino]-1-phenyl-1H-pyrrole, min. 95%;(1-phenylpyrrol-2-yl)-di(propan-2-yl)phosphane
Ligand-Controlled α- and β-Arylation of Acyclic N-Boc Amines
摘要:
AbstractThe palladium‐catalyzed ligand‐controlled arylation of α‐zincated acyclic amines, obtained by directed α‐lithiation and transmetalation, is described. Whereas PtBu3 gave rise to α‐arylated Boc‐protected amines, more flexible N‐phenylazole‐based phosphine ligands induced major β‐arylation through migrative cross‐coupling.
Direct Amination of Secondary Alcohols Using Ammonia
作者:Dennis Pingen、Christian Müller、Dieter Vogt
DOI:10.1002/anie.201002583
日期:2010.10.25
Hydrogen shuttle: For the first time secondaryalcohols and ammonia can be directly converted into primary amines with a selectivity of up to 99 % by using a simple ruthenium/phosphine catalyst (see scheme; R1, R2= alkyl, aryl, alkenyl; M=[Ru3(CO)12]; and L=phosphine ligand).
氢穿梭:通过使用简单的钌/膦催化剂,仲醇和氨首次可直接以高达99%的选择性直接转化为伯胺(参见方案; R 1,R 2 =烷基,芳基,烯基; M = [Ru 3(CO)12 ];和L =膦配体)。