Preparation of New Phosphoranes by Chemoselective Reaction of Acetylenic Esters with Compounds Containing Two Nitrogen Atoms
作者:Mahboobeh Vaseghi、Zahra Hassani、Mohammad Reza Islami
DOI:10.1080/10426507.2014.885973
日期:2014.11.2
N-ethyl-N′-propionylurea or N-acetylthiourea in the presence of PPh3 have been realized under mild conditions. The present protocol provides an attractive synthesis to a diverse range of succinic esters containing the urea moiety, and its derivatives, in good yields.