Reaction of 1-Aryl-1<i>H</i>-1,2,3-Triazole-4-Carbonyl Chlorides/Isothiocyanates with 3-Amino-5-Methylisoxazole
作者:Nazariy T. Pokhodylo、Vasyl S. Matiychuk
DOI:10.1080/10426507.2010.548840
日期:2011.9.1
3-triazole-4-carbonyl chlorides were selected as starting materials for the Boulton–Katritzky rearrangement. When 3-amino-5-methylisoxazole was acylated by 1-aryl-1H-1,2,3-triazole-4-carbonyl chlorides, 1-aryl-5-methyl-N-(5-methylisoxazol-3-yl)-1H-1,2,3-triazole-4-carboxamides 5 were obtained and no further rearrangement occurred. On the other hand, when 1-aryl-1H-1,2,3-triazole-4-carbonyl chlorides were first
摘要 1-Aryl-1H-1,2,3-triazole-4-carbonyl chlorides 被选为 Boulton-Katritzky 重排的起始材料。当 3-氨基-5-甲基异恶唑被 1-芳基-1H-1,2,3-三唑-4-碳酰氯酰化时,1-芳基-5-甲基-N-(5-甲基异恶唑-3-基)-得到1H-1,2,3-三唑-4-甲酰胺5,并且没有发生进一步的重排。另一方面,当 1-芳基-1H-1,2,3-三唑-4-碳酰氯首先通过与 KSCN 反应转化为异硫氰酸酯,然后再与 3-氨基-5-甲基异恶唑 4 反应时,一锅,中间体硫脲形成并在 statu nascendi 中自发转化为 1,2,4-噻二唑衍生物 6. 图形摘要