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ChemicalBook CAS DataBase List 1-(5-tert-Butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea
34014-18-1

1-(5-tert-Butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea synthesis

2synthesis methods
Tebuthiuron is produced commercially through a multi-step chemical synthesis that constructs its urea-based herbicidal structure. The process begins with the preparation of key intermediates such as substituted phenyl isocyanates and methylamines, which are reacted under controlled conditions to form the active tebuthiuron molecule.
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Yield:-

Steps:

Multi-step reaction with 5 steps
1: hydrazine hydrate; aluminum oxide / toluene / Reflux
2: toluene / 2 h / Reflux
3: sulfuric acid; toluene-4-sulfonic acid / 75 - 85 °C
4: triethylamine / toluene / 0 °C
5: tetrahydrofuran / Reflux

References:

Jiangsu Kuai Da Agrochemical Co., Ltd.;Li Wei;Qian Shengli;Han Bangyou;Xu Xuefei;Huang Zhihong;Lin Longlong;Wu Chongzheng;Wu Chunhui CN108794427, 2018, A

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