Efficient Multigram Approach to Acetylenes and CF
<sub>3</sub>
‐ynones Starting from Dichloroalkenes Prepared by Catalytic Olefination Reaction (COR)
作者:Vasiliy M. Muzalevskiy、Zoia A. Sizova、Arstan I. Diusenov、Alexey V. Shastin、Valentine G. Nenajdenko
DOI:10.1002/ejoc.202000531
日期:2020.7.23
Efficient two step approach towards terminal acetylenes was elaborated. At the first step, dichloroalkenes were prepared in up to 88 % yields by catalytic olefination reaction COR of arylaldehydes. Treatment of dichloroalkenes with n BuLi effectively led to the corresponding alkynes in up to 97 % yield. A versatile one pot procedure towards CF3‐ynones was elaborated to give these products in up to
阐述了一种有效的两步合成末端乙炔的方法。在第一步中,通过芳基醛的催化烯化反应COR以高达88%的产率制备二氯烯烃。用正丁基锂处理二氯烯烃有效地产生相应的炔烃,产率高达97%。详细介绍了一种针对CF 3-炔酮的通用一锅法,使这些产品从二氯烯烃开始的收率高达87%。