New building blocks, 3,5-dihydro-1H-thieno[3,4-c]pyrrole 2,2-dioxides; preparation and their Diels–Alder reaction with dimethyl acetylenedicarboxylate
作者:Kaori Ando、Mutuo Kankake、Takayoshi Suzuki、Hiroaki Takayama
DOI:10.1039/c39920001100
日期:——
New building blocks, 3,5-dihydro-1H-thieno[3,4-c]pyrrole 2,2-dioxides 1, have been prepared and react with dimethyl acetylenedicarboxylate to give new types of compound: 7-aza-2,3-dimethylenenorbornene A, the 1:2 adduct B, 1a,3a,6,9-tetrahydrobenz[g]indole C, and dihydroindolosulfolene D depending on the reaction conditions and the N-substituent.
已制备新的结构单元3,5-二氢-1 H-噻吩并[3,4- c ]吡咯2,2-二氧化物1,并与乙酰二羧酸二甲酯反应生成新型化合物:7-氮杂-2,根据反应条件和N-取代基,3-二亚甲基降冰片烯A,1:2加合物B,1a,3a,6,9-四氢苯并[ d ]吲哚C和二氢吲哚并丁二酚D。