Diazo compounds as electrophiles to react with 1,4-dilithio-1,3-dienes: efficient synthesis of 1-imino-pyrrole derivatives.
1-Imino-pyrrole and indole derivatives were synthesized in high yields from the reaction of diaryl diazomethanes with 1,4-dilithio-1,3-dienes. Diaryl diazomethanes reacted as electrophiles in this reaction. An unprecedented Zn-complex was formed via transmetalation of the above reaction intermediate with ZnCl2 and was structurally characterized. The trans-μ2-η(1):η(1) coordination mode in the solid state for this azaallylzinc compound was observed.
Beijing National Laboratory for Molecular Sciences, College of Chemistry, Peking University, Beijing 100871, China.
Ming
M
Zhan
Shaoguang
S
Zhang
Wen-Xiong
WX
Zhang
Zhenfeng
Z
Xi