Se. Mallakpour et Ma. Zolfigol, CYCLOADDITION OF 1,6-BIS(3,5-DIOXO-1,2,4-TRIAZOLIN-4-YL)HEXANE TO SOME DIENES, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 34(3), 1995, pp. 183-189
The reaction of 1,6-bis(3,5-dioxo-1,2,4-triazolin-4-yl)hexane (hexamet
hylenebis-triazolinedione, HMBTAD) with isoprene, cyclopentadiene (mon
omer), 5,5-dimethoxy-1,2,3,4-tetrachlorocyclopenta- diene, hexachloroc
yclopentadiene, anthracene, 1,3-cyclohexadiene and 2,6-dichlorostyrene
has been investigated. These reactions occur via [4 + 2] Diels-Alder
cycloaddition at room or below room temperature and lead to the format
ion of new heterocyclic bis-adducts in quantitative yields.