Synthesis of some new azole, pyrimidine, pyran, and benzo/naphtho[b]furan derivatives incorporating thiazolo[3,2-a]benzimidazole moiety
作者:Ahmad M. Farag、Kamal M. Dawood、Hatem A. Abdel-Aziz、Nehal A. Hamdy、Issa M. I. Fakhr
DOI:10.1002/jhet.584
日期:2011.3
3b, 3c, 5a, 5b, the pyrazole, isoxazole, pyrimidinethione and aminopyrimidine derivatives 7a, 7b, 9a, and 9b, respectively. The utility of compound 1, as a versatile building block, for the synthesis of the pyranone 13, benzo[b]furan 17a, and naphtho[1,2‐b]furan 17b was also explored via its reaction with 2‐benzamidoacetic acid (10), 1,4‐benzoquinone (14a), and 1,4‐naphthoquinone (14b), respectively
的反应ë -3-(Ñ,Ñ二甲基
氨基)-1-(3-甲基
噻唑并[3,2-一个]
苯并咪唑-2-基)丙-2-烯-1-酮(1)与一些Ñ -nucleophiles ,例如
苯胺2a,2b,2c,4-
氨基N-
吡啶-2-基苯磺酰胺(4a),4-
氨基N-
嘧啶-2-基苯磺酰胺(4b),
肼,
羟胺,
硫脲,和
胍提供相应的arylaminoprop-2-en-1衍
生物3a,3b,3c,5a,5b分别为
吡唑,
异恶唑,
嘧啶硫酮和
氨基嘧啶衍
生物7a,7b,9a和9b。通过与2-苯甲酰胺基
乙酸的反应,还探索了化合物1作为通用结构单元用于合成
吡喃酮13,苯并[ b ]
呋喃17a和
萘并[1,2- b ]
呋喃17b的用途(10),1,4-苯醌(14a)和
1,4-萘醌(14b)。J.杂环化学。(2011)。