Dual 1,3-dipolar cycloaddition of carbon dioxide: two C=O bonds of CO2 react in one reaction
Li-Li Zhao(赵立立), Shun-Yi Wang(汪顺义)*, Xiao-Ping Xu(徐小平) and Shun-Jun Ji(纪顺俊)*
Chem. Commun. 2013, 49, 2569-2571.
The first investigation into two C![[double bond, length as m-dash]](/_upload/article/images/9f/4c/8a57573746dbad5f4e066ef2d0b0/172f2e28-c62d-426f-a8c5-eb72b38f977c.gif)
O bonds of CO2 reacting in one reaction through dual 1,3-dipolar cycloaddition of CO2 with isocyanides and dialkyl acetylenedicarboxylates has been reported. The reaction proceeded efficiently at 80 °C at a pressure of 1 atm of CO2, affording symmetric 1,6-dioxospiro[4,4]nonane-3,8-diene derivatives in moderate yields.
链接：//pubs.rsc.org/en/content/articlelanding/2013/cc/c3cc38526d#!divAbstract
