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CAS RN: 18303-04-3 | 产品编码: B1648
N-(tert-Butoxycarbonyl)-p-toluenesulfonamide
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技术规格
| Appearance | White to Almost white powder to crystal |
| Purity(HPLC) | min. 98.0 area% |
| Purity(Neutralization titration) | min. 98.0 % |
物性（参考值）
| 熔点 | 123 °C |
GHS
相关法规
运输信息
| HS编码* | 2935.90-000 |
应用
Sulfonamide Effective for the Introduction of Amino group
Experimental procedure: To a solution of PPh3 (6.23 g, 23.8 mmol) in THF (56 mL) under an atmosphere of nitrogen at 0 °C is added DIAD (3.85 g, 23.8 mmol). The reaction is stirred at 0 °C for 30 min before N-(tert-butoxycarbonyl)-p-toluenesulfonamide (5.37 g, 20.0 mmol) is added. The mixture is allowed to stir at 0 °C for 5 min followed by the addition of 1 (3.11 g, 19.8 mmol). The reaction is stirred at room temperature for 2.5 h before being concentrated under reduced pressure to give a crude oil. The oil is purified by flash column chromatography (silica gel, ethyl acetate:hexanes = 1:20) to generate 2 (7.54 g, 18.4 mmol, 93%) as orange oil.
References
- Iron(II) Halide Promoted Cyclization of Cyclic 2-Enynamides: Stereoselective Synthesis of Halogenated Bicyclic γ-Lactams
应用
Sulfonamide under Mitsunobu Reaction
References
- An efficient route to protected amines
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