Jf. Mclellan et al., Tandem ene addition/Diels-Alder cycloaddition reactions of methyl linoleate with 4-phenyl-1,2,4-triazoline-3,5-dione and diethyl azodicarboxylate, J CHEM R-S, (7), 2000, pp. 339-341
Treatment of methyl linoleate with 4-phenyl-1,2,4-triazoline-3,5-dione affo
rds 1:1 adducts resulting from ene addition, and 1:2 adducts formed by ene
addition followed by Diels Alder cycloaddition. The corresponding reaction
of diethyl azodicarboxylate yields predominantly 1:1 ene products.