作者:Alaa A. Hassan、Aboul‐Fetouh E. Mourad、Ashraf H. Abou‐Zeid
DOI:10.1002/jhet.5570450205
日期:2008.3
solution) act on substituted acylthiosemicarbazides 4a-d, forming the derivatives of oxoindeno-pyrrolylidenehydrazide (5a-d and 7a-d), thiazoloindolylidenehydrazide (12a-d), pyrroloindolylidene-hydrazide (13a-d) and spiro[pyrrolylidene-4,1′(cyclohexa-2′,5′-dienylidene)]propanedinitrile (18a-d). Rationales for these conversiones involving the nucleophilic addition on dicyanomethylene carbon atom are presented
(1,3-二氧代-2,3-二氢-1 H-茚满-2-亚烷基)丙腈(1,在乙酸乙酯溶液中),3-(二氰基亚甲基)-2-吲哚酮(2,在乙醇/哌啶中溶液)和7,7',8,8'-四氰基喹二甲烷(3,在吡啶溶液中)作用在取代的酰基硫代氨基脲4a-d上,形成氧代茚并-吡咯亚甲基肼(5a-d和7a-d)的衍生物,噻唑并吲哚基亚乙基肼(12a- d),吡咯烷基二亚甲基肼(13a-d)和螺[吡咯亚烷基-4,1'(环己基2',5'-二烯叉)]丙腈(18a-d)。提供了涉及在二氰基亚甲基碳原子上的亲核加成的这些转化的原理。