Convenient synthesis of some new pyrazolo[1,5-<i>a</i>]pyrimidine, pyridine, thieno[2,3-<i>b</i>]pyridine, and isoxazolo[3,4-<i>d</i>]pyridazine derivatives containing benzofuran moiety
作者:Abdou O. Abdelhamid
DOI:10.1002/jhet.141
日期:2009.7
Pyrazolo[1,5-a]pyrimidines, pyrazoles, and thieno[2,3-b]pyridine were synthesized from sodium salt of 5-benzofuran-2-yl-3-hydroxypropenone and the appropriate of heterocyclic amines, diazonium chloride, and 1,3-dicarbonoyl compounds. Pyrimidino[4′,5′:4,5]thieno[2,3-b]pyridine, 1,2,3,4-tetrazolo[1″,5″:6′,1′]-pyrimidino[4′,5′:4,5]thieno[2,3-b]pyridine and pyridino[2″,3″:2′,3′]thieno[4,5-d]1,2,4-triazolo[4
吡唑并[1,5- a ]嘧啶,吡唑和噻吩并[2,3- b ]吡啶是由5-苯并呋喃-2-基-3-羟基丙烯酮的钠盐和适当的杂环胺,氯化重氮和1,3-二羰基化合物。Pyrimidino [4',5':4,5] thieno [2,3- b ] pyridine,1,2,3,4-tetrazolo [1“,5”:6',1']-pyrimidino [4', 5':4,5] thieno [2,3- b ]吡啶和吡啶基[2“,3”:2',3'] thieno [4,5 - d ] 1,2,4-三唑[4,3 - ë ]嘧啶衍生物是从6 -苯并[合成d ]呋喃-2-基-2- thioxohydropyridine -3-腈和每个甲酸或甲酰胺。通过元素分析和光谱数据确定了新合成的结构。J.杂环化学。(2009)。