Substitution reactions between arenethiolate anions and 1,3-dihalo-2,2-dimethylpropanes. Synthetic scope and mechanistic aspects
作者:Alicia Beatriz Peñéñory、Cecilia Andrea Barrionuevo、Juan Elias Argüello
DOI:10.3998/ark.5550190.0012.721
日期:——
The synthetic scope of the reactions between benzenethiolate, 4-methoxybenzenethiolate, 2-naphthalenethiolate, and 2-pyridinethiolate anions with 1,3-dihalo-2,2-dimethylpropane was studied. These reactions render mono and disubstituted products from good to excellent yields. For all the substrates studied the monosubstituted halogenated product is the intermediate or the main product depending on the
研究了苯硫醇、4-甲氧基苯硫醇、2-萘硫醇和2-吡啶硫醇阴离子与1,3-二卤-2,2-二甲基丙烷反应的合成范围。这些反应使单取代和二取代产物的产率从良好到极好。对于所有研究的底物,根据第二个离去基团的性质,单取代的卤化产物是中间体或主要产物。芳基环丙基硫化物被发现是副产物,它们的产率很大程度上取决于碱浓度 (tertBuOK)。最后,使用新戊基碘作为模型,基于非动力学证据评估了这些反应的机制,表明根据所使用的溶剂,反应从 SRN1 转换为极性 SN2。