Pd. Baruah et Mp. Mahajan, DIELS-ALDER CYCLOADDITIONS OF ENAMINOTHIONES WITH 8,9,10-TRINORBORN-2-ENE AND DICYCLOPENTADIENE, Journal of chemical research. Synopses, (10), 1993, pp. 420-421
3-Dimethylamino-1-arylpropene-1-thiones (1) participate in [4+2] cyclo
additions with 8,9,10-trinorborn-2-ene (2) and dicyclopentadiene (3a,4
,7,7a-tetrahydro-4,7-methano-1H-indene, 4) resulting in the formation
of hyl-amino-3-thiatricyclo[6.2.1.0(2,7)]undec-4-enes (3) and yclo[6.5
.1.0(2-7).O(9,13)]tetradeca-4,10/11-dienes (5), respectively.