A Convenient and Facile Hantzsch Synthesis of Aryl Imidazo[1,2-<i>b</i>]Isoxazolyl-<i>N</i>-aryl Thiazol Amines
作者:E. Rajanarendar、K. Thirupathaiah、S. Ramakrishna、D. Nagaraju
DOI:10.1002/jhet.2518
日期:2016.11
The Hantzsch synthesis of novel aryl imidazo[1,2‐b]isoxazolyl‐N‐aryl thiazol amines 5 analogues were described. Reaction of 3‐aminoisoxazole 1 with substituted phenacyl bromides 2 in dry ethanol afforded the corresponding 6‐methyl‐3‐arylimidazo[1,2‐b]isoxazoles 3 in good yields. Compounds 3 on reaction with chloroacetyl chloride in 1,4‐dioxane furnished the corresponding 2‐chloro‐1‐(6‐methyl‐3‐arylimidazo[1
描述了新型芳基咪唑并[1,2- b ]异恶唑基-N-芳基噻唑胺的5种类似物的汉茨合成。3-氨基异恶唑1与取代的苯甲酰溴2在无水乙醇中的反应得到了相应的6-甲基-3-芳基咪唑并[1,2- b ]异恶唑3。与氯乙酰氯在1,4-二恶烷中反应的化合物3提供了相应的2-氯-1-(6-甲基-3-芳基咪唑并[1,2 - b ]异恶唑-2-基)乙酮4。化合物4与N一起加热在油浴中对-芳基硫脲进行环化反应,通过汉茨合成法以中等至良好的收率得到标题化合物,即咪唑并[1,2- b ]异恶唑基-N-芳基噻唑胺5。