4-hydroxy-6-methyl-3-(5-phenyl-2<i>E</i>,4<i>E</i>-pentadien-1-oyl)-2<i>H</i>-pyran-2-one: Synthesis and reactivity with amines
作者:Nabila Aït-Baziz、Yahia Rachedi、Maamer Hamdi、Artur M. S. Silva、F. Balegroune、Roisnel Thierry、N. Sellier
DOI:10.1002/jhet.5570410417
日期:2004.7
The synthesis and reactivity studies of 4-hydroxy-6-methyl-3-(5-phenyl-2E,4E-pentadien-1-oyl)-2H-pyran-2-one 2 with nucleophiles are reported. Reactions of 2 with hydrazine derivatives gave new pyrazole-type com pounds while the reaction with ortho-phenylenediamines yielded 1,5-benzodiazepines. The reaction of 2 with ethylamine implies the 2H-pyran-2-one ring opening and the formation of a strong conjugated
报道了4-羟基-6-甲基-3-(5-苯基-2 E,4 E-戊二烯-1-基)-2 H-吡喃-2-酮2与亲核试剂的合成和反应性研究。2与肼衍生物的反应生成新的吡唑型化合物,而与邻苯二胺的反应生成1,5-苯并二氮杂ze。2与乙胺的反应表示2 H -pyran-2-one开环并形成了强共轭化合物3。