Addition reactions of heterocyclic compounds. Part 71. The formation of 1,3a,3b,4,6a,6b-hexahydrocyclopenta[3,4]cyclobuta[1,2-b]pyrroles from dimethyl acetylenedicarboxylate and 1-aryl-1,4-dihydropyridines
作者:R. Morrin Acheson、Andrew R. D. Knott、David J. M. Lucas、Peter A. Tasker、Giuseppe Paglietti
DOI:10.1039/p19800000081
日期:——
1-Aryl-1,4-dihydropyridines combine with dimethyl acetylenedicarboxylate to form tetramethyl 1-aryl-1,3a,3b,4,6a,6b-hexahydrocyclopenta[3,4]cyclobuta[1,2-b]pyrrole-3,3a,6,6a-tetracarboxylates, the structures of which were deduced from their 1H, 13C n.m.r., and mass spectra. The mode of formation of the adducts is discussed.
1-芳基-1,4-二氢吡啶与乙酰二羧酸二甲酯结合形成四甲基1-芳基-1,3a,3b,4,6a,6b-六氢环戊[3,4]环丁[1,2 - b ]吡咯-3, 3a,6,6a-四羧酸盐,其结构是根据其1 H,13 C nmr和质谱得出的。讨论了加合物的形成方式。