3,3-Dimethoxypropylsulfonyl Group: A new versatile protecting and activating group for amine synthesis
作者:Izumi Sakamoto、Kazuya Iwaoka、Yuta Kawada、Takanori Naito、Kazuyoshi Makida、Yuki Takeuchi、Takeshi Nishii、Mitsuyo Horikawa、Hiroto Kaku、Tetsuto Tsunoda
DOI:10.1016/j.tet.2018.04.088
日期:2018.6
3-Dimethoxypropylsulfonyl (Dimps) chloride was prepared and used as a new versatile sulfonating agent for ammonia, primary and secondary amines to afford corresponding Dimps-amides in excellent yields. The resulting N-nonsubstituted and N-monosubstituted Dimps-amides, activated amines, were alkylated satisfactorily under new Mitsunobu conditions. The Dimps group was removed by treatment in aqueous solution under acidic
制备了3,3-二甲氧基丙基磺酰氯(Dimps)氯化物,并用作氨,伯胺和仲胺的新型通用磺化剂,以优异的收率提供了相应的Dimps-酰胺。将所得Ñ -nonsubstituted和Ñ单取代Dimps酰胺,活化的胺,新Mitsunobu条件下得到令人满意的烷基化。通过在酸性条件下在水溶液中处理,然后在碱性条件下除去Dimps基团。此外,使用这种Dimps方法在短时间内合成了墨西哥豆甲虫Epilachna varivestis的防御滴珠Epilachnene。