1127-35-1Relevant articles and documents
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Marmor
, p. 2927 (1977)
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Palladium-catalyzed C(sp3)-H arylation of benzo[b]thiophen-3(2H)-one 1,1-Dioxide
Liu, Hailong,Li, Wenjing,Fu, Haiyan,Chen, Hua,Li, Ruixiang,Li, Yu
, (2019/12/24)
A new concise synthesis route of 2-phenylbenzo[b]thiophen-3(2H)-one 1,1-dioxide from benzo[b]thiophen-3(2H)-one 1,1-dioxide was developed using palladium-catalyzed C(sp3)-H arylation. Compared with the traditional route, this protocol can effec
Method for preparing aromatic ring[b]thiophene-3(2H)-one-1,1-dioxide
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Paragraph 0050; 0052; 0056, (2019/02/13)
The invention provides a preparation method of aromatic ring[b]thiophene-3(2H)-one-1,1-dioxide. According to the method, a compound as shown in the formula I reacts with an oxidizing agent to obtain the aromatic ring[b]thiophene-3(2H)-one-1,1-dioxide. The invention also provides a preparation method of the compound as shown in the formula I. The preparation method provided by the invention has thefollowing advantages: reaction yield is high; reaction speed is fast; raw materials are easily available; cost is low; reaction is mild; the method is easy to control; post-treatment is simple; thereare few wastes generated and pollution is low. According to existing methods, synthesis cost is high; post-treatment is cumbersome; there are many ''three wastes'' (wastewater, waste gas and waste residue) in the reaction process and pollution is large, and the yield is low. The method provided by the invention provides a practical and feasible synthetic route for green chemical industry, and hashigh production and application value.