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1-(1-H-苯并三唑-1-乙酰基)-4-苯甲酰基氨基硫脲及其噻二唑和三唑啉衍生物的合成
Synthesis of 1-(1-H-Benzotriazole-1-acetyl)-4-Benzoykmosemicarbazide and its 1,3,4-Thiadiazole and1,2,4-Triazoline-5-thione Derivatives
【摘要】 于固液相转移条件下,以PEG-600为相转移催化剂,通过苯并三唑与氯乙酸乙酯反应,合成了1-H-苯并三唑-1-乙酸乙酯(Ⅱ).Ⅱ与85%的水合肼反应,制得相应的酰肼(Ⅲ).Ⅲ与苯甲酰基异硫氰酸酯反应,则得1-(1-H-苯并三唑-1-乙酰基)-4-苯甲酰基氨基硫脲(Ⅳ).Ⅳ在酸或碱存在下环化,分别得到1,3,4-噻二唑(Ⅴ)和1,2,4-三唑啉-5-硫酮。
【Abstract】 Ethy 1 1-H-benzotriazole-1- acetate has been synthesized by the reaction of benzotriazole withethyl chloroacetate tinder solidliquid phass transfer catalysis using PEG-600 as PTC, The ester reactedwith 85% hydrazine hydrate,obtained 1-H-benzotriazole-1-acetyl hydraside. The latter reactcd withbenzoyl isothiocyanate,yielded 1-(1-H-benzotriazole-1-acetyl)-4-benzoylthiosemicarbazide ,which cy-clized in the presence of base or acid,offered the derivatives of 1,2,4-triazoline-5-thione and 1,3,4-thiadiazole,respectively。
【关键词】 1-(1-H-苯并三唑-1-乙酰基)-4-苯甲酰基氨基硫脲;
2-苯甲酰氨基-5-(1-H-苯并三唑-1-甲撑)-1;
3;
4-噻二唑;
3-(1-H-苯并三唑-1-甲撑)-4-苯甲酰基-1;
2;
4-三唑啉-5-硫酮;
相转移催化;
合成;
【Key words】 H-benzotriazole-1-acetyl)-4-benzoylthicoemicarbazide; 2-benzoylamino-5-(1-H-benzotriazol-1-ylmethyl)-1; 3; 4-thiadiazole; 3-(1-H-benzotriazol-1-ylmethyl)-4-benzoyl-1; 2; 4-tria-zoline-5-thione; phase transfer catalysis; synthesis;
【Key words】 H-benzotriazole-1-acetyl)-4-benzoylthicoemicarbazide; 2-benzoylamino-5-(1-H-benzotriazol-1-ylmethyl)-1; 3; 4-thiadiazole; 3-(1-H-benzotriazol-1-ylmethyl)-4-benzoyl-1; 2; 4-tria-zoline-5-thione; phase transfer catalysis; synthesis;
- 【文献出处】 西北师范大学学报(自然科学版) ,JOURNAL OF NORTHWEST NORMAL UNIVERSITY(NATURAL SCIENCE EDITION) , 编辑部邮箱 ,1994年03期
- 【分类号】O621.3
- 【被引频次】5
- 【下载频次】179