p-Toluenesulfonamide synthesis
- Product Name:p-Toluenesulfonamide
- CAS Number:70-55-3
- Molecular formula:C7H9NO2S
- Molecular Weight:171.22
4917-56-0
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Yield:70-55-3 99%
Reaction Conditions:
with hydrogenchloride;[bis(trifluoromethanesulfonyl)imidate](triphenylphosphine)gold(I) in dichloromethane;water at 40; for 10 h;Schlenk technique;
Steps:
4-Methylbenzenesulfonamide (TsNH2);18 Hydrolysis of Compound 6
In air, to a Schlenk tube were added compound 6 (79.7 mg, 0.40mmol),15 Ph3PAuNTf2 (5.9 mg, 0.02 equiv), anhydrous CH2Cl2 (6 mL) and HClconcd (12 M, 40 μL, 2.4 equiv). The resulting mixture was stirred at 40 °C overnight (about 10 h). Subsequently, the reaction was cooled to r.t., and the mixture was subjected to flash column chromatography for purification directly, using CH2Cl2-EtOAc as the eluent. White solid, yield: 67.6 mg (99%)
References:
Zhao, Yulei;Yuan, Yang;Kong, Lingkai;Zhang, Fangfang;Li, Yanzhong [Synthesis,2017,vol. 49,# 16,p. 3609 - 3618]
98-59-9
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1576-35-8
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941-55-9
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106-45-6
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70-55-3
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