Thieme Chemistry Journal Awardees - Where Are They Now? [3]-Cumulenes, Sulfanyl-Substituted Butadienes, and Functionalized Thiophenes Starting from Polypyridinium Salts
作者:Andreas Schmidt、Alireza Rahimi、Mimoza Gjikaj
DOI:10.1055/s-0029-1217952
日期:2009.10
Hexachlorobuta-1,3-diene reacted with DMAP, 4-(pyrrolidin-1-yl)pyridine, 4-(morpholin-1-yl)pyridine, and 4-amino-pyridine to 1,1',1",1"'-tetrakis-(2,3-dichlorobuta-1,3-diene-1,1,4,4-tetrayl)pyridinium salts, respectively. Except for the 4-amino derivative, these salts were converted into 1,1'-bis-(1,2,3,4-tetrachloro-buta-1,3-diene-1,4-diyl)pyridinium salts on treatment with bromine or iodine in acetic
Hexachlorobuta-1,3-diene 与 DMAP、4-(pyrrolidin-1-yl)pyridine、4-(morpholin-1-yl)pyridine 和 4-amino-pyridine 反应生成 1,1',1",1" '-tetrakis-(2,3-dichlorobuta-1,3-diene-1,1,4,4-tetrayl)pyridinium 盐。除了 4-氨基衍生物外,这些盐在用 1,1'-双-(1,2,3,4-四氯-丁-1,3-二烯-1,4-二基)吡啶鎓盐处理后转化为溴或碘溶于乙酸或水中。在与硫醇盐反应时,得到四-硫烷基取代的 [3]-枯草烯,而用硫处理产生 1,1'-双-(2,3-二氯-噻吩-1,4-二基)吡啶盐。二硫化钠得到1,1'-双-(2,3-二氯-1,4-dimercaptobuta-1,3-二烯-1,4-二基)吡啶鎓盐。