1,2-Benzisothiazol-3(2H)-one synthesis
- Product Name:1,2-Benzisothiazol-3(2H)-one
- CAS Number:2634-33-5
- Molecular formula:C7H5NOS
- Molecular Weight:151.19
Yield:2634-33-5 99%
Reaction Conditions:
with manganese triacetate;ethylenediamine in ethanol at 120; under 6000.6 Torr; for 10 h;Reagent/catalyst;Solvent;Temperature;Pressure;
Steps:
1; 1-12 Example 1
General procedure: In a 250 mL reactor, put 15.28 g of a mixture of 2-mercaptobenzamide and 2,2'-dithiobenzamide (molar ratio 3:1), 0.42 g Mn(OH)3, 0.60 g Triethanolamine and 160 mL of ethanol; heated to 120°C with stirring, and oxygen was introduced to maintain the pressure in the reactor at 0.2 MPa. After 10 hours of reaction, the reaction was stopped, the ethanol was removed by rotary evaporation, and 100 mL of water was added and stirred for 20 min, filtered, The filter cake was dried to obtain 12.23 g of white solid BIT, the yield was 90%, the melting point was 154-156°C, and the purity of the product was 98% by liquid chromatography.
References:
CN113200937,2021,A Location in patent:Paragraph 0025; 0029
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