3-Diazobenzo[b]thiophen-2(3H)-one synthesis
- Product Name:3-Diazobenzo[b]thiophen-2(3H)-one
- CAS Number:54518-09-1
- Molecular formula:
- Molecular Weight:0
493-57-2
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54518-09-1
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Yield:54518-09-1 90%
Reaction Conditions:
Stage #1: benzo-[b]thiophene-2,3-dionewith toluene-4-sulfonic acid hydrazide in tetrahydrofuran; for 2 h;Inert atmosphere;Reflux;
Stage #2: with sodium hydroxide in dichloromethane;water at 40; for 2 h;Inert atmosphere;
References:
Cui, Xiao-Yuan;Zhao, Yu-Lei;Chen, Yan-Mei;Dong, Su-Zhen;Zhou, Feng;Wu, Hai-Hong;Zhou, Jian [Organic Letters,2021,vol. 23,# 12,p. 4864 - 4869] Location in patent:supporting information