121721-07-1Relevant articles and documents
Intramolecular Cycloaddition of Azoalkenes Derived from Allylic β-Keto Esters
Gilchrist, Thomas L.,Romero, Oscar A. Sanchez,Wasson, Robert C.
, p. 353 - 359 (2007/10/02)
The 2,4-dinitrophenylhydrazone (2a) of allyl 2-chloroacetoacetate has been prepared and converted into the azoalkene (4a) by reaction with sodium carbonate.The azoalkene undergoes an intramolecular Diels-Alder reaction when heated under reflux in toluene