作者:Jia Chen、Jin-Hong Lin、Ji-Chang Xiao
DOI:10.1021/acs.orglett.8b01058
日期:2018.5.18
An efficient reagent system, Ph3P/XCH2CH2X (X = Cl, Br, or I), was very effective for the deoxygenative halogenation (including fluorination) of alcohols (including tertiary alcohols) and aldehydes. The easily available 1,2-dihaloethanes were used as key reagents and halogen sources. The use of (EtO)3P instead of Ph3P could also realize deoxy-halogenation, allowing for a convenient purification process
高效的试剂体系Ph 3 P / XCH 2 CH 2 X(X = Cl,Br或I)对于醇类(包括叔醇)和醛类的脱氧卤化(包括氟化)非常有效。容易获得的1,2-二卤乙烷用作关键试剂和卤素源。使用(ETO)的3 P代替pH为3普还可以实现脱氧卤化,允许方便的纯化方法,作为副产物(ETO)3 P = O可通过水溶液洗涤去除。温和的反应条件,广泛的底物范围和1,2-二卤乙烷的广泛可用性使该方案对卤代化合物的合成具有吸引力。