Tetrahedron letters

Reactions of furans, thiophenes and pyrroles with activated carbonyl compounds under thermal and high pressure conditions

G Jenner, N Papadopoulos, J Jurczak, T Koźluk

文献索引：Jenner, G.; Papadopoulos, M.; Jurczak, J.; Kozluk, T. Tetrahedron Letters, 1984 , vol. 25, # 50 p. 5747 - 5750

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被引用次数: 18

摘要

Unsubstituted or rimethyl substituted five-membered heterocycles react under thermal and high pressure conditions with activated ketones affording electrophilic substitution products (B). 2, 5_Dimethylfuran,-thiophene and pyrroles give substituted products (A). With dimethylpyrroles, B-substitution may occur leading to products (C). The reactions are supposed to proceed via ene-like reactions.