- Method for synthesizing N - sulfur-based benzimide or derivative thereof from Bununte salt (by machine translation)
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The Bununte salt is used for synthesizing N - thienylbenzimide or a derivative thereof. The method takes the benzylamine or benzylamine derivative and Bununte salt as a raw material, takes N, N - dimethylformamide as a solvent, fully reacts under 70~90 °C, and after the reaction is finished, the reaction liquid is separated and purified to obtain N - thienylbenzimide or a derivative thereof. The method is simple and safe, no oxidizing agent and additives exist, cuprous bromide is added as a catalyst, and the reaction temperature is lowered, and the reaction temperature is lowered. The method improves the yield, avoids the use of raw materials such as mercaptan and the like, is less in three wastes, and is environment-friendly. (by machine translation)
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Paragraph 0045-0049; 0076-0091
(2019/09/13)
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- A New Synthetic Method for Sulphenimines. Fluoride-catalysed Reaction of N,N-Bis(trimethylsilyl)sulphenamides with Aldehydes and Ketones
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A convenient, general method for the preparation of sulphenimines by the reaction of aldehydes and ketones with N,N-bis(trimethylsilyl)sulphenamides in the presence of tetrabutylammonium fluoride catalyst is described.
- Morimoto, Toshiaki,Nezu, Yoshitaka,Achiwa, Kazuo,Sekiya, Minoru
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p. 1584 - 1585
(2007/10/02)
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