Synthesis and chemistry of new spiro-Δ1-pyrazoline
作者:Nesrine Louhichi、Amel Houas、Naoufel Ben Hamadi、Moncef Msaddek
DOI:10.1002/jhet.827
日期:2012.3
spiroheterocycles, we found that the reaction of 2‐diazopropane with (E)‐α‐arylidenepyrrolin‐2‐one, (E)‐α‐arylidene‐γ‐butyrolactone, and (E)‐arylidene‐N‐arylsuccinimide derivatives produced spiro‐Δ1‐pyrazolines. The photolysis of Δ1‐pyrazolines has led to cyclopropanes. The structures of the obtained adducts have been assigned by means of spectroscopic measurements. J. Heterocyclic Chem., (2011).