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English Name: N-2,3-Trimethyl-2-isopropylbutanamide; [2]WS-23; N, 2,3-trimethyl-2- (propan-2-yl) butanamideCAS:51115-67-4EINECS:256-974-4Molecular formula: C10H21NOMolecular weight: 171.2798Use:WS-23 N, 2,3- -2- three methyl isopropyl butyl amide is a kind of very good quality cooling agent, has high cooling activity without burning, numbness and stimulation and other side effects, as cool agent is mainly used for such as candy, oral care, medicine. WS-23 (FEMANO.3804) has been included in the Chinese food additive standard GB-2760, can be used safely. In order to propionitrile as raw material, 1, 2- two methoxy ethane (DME) as solvent, in the presence of sodium reacts with amino isopropyl bromide was synthesized from DIPPN, yield of 61.5. In poly phosphoric acid (PPA) under the catalysis of DIPPN and dimethyl carbonate two (DMC) was synthesized by Ritter WS-23, yield of 79.7. These studies for the WS-23 industry into the ready. The other related compounds are synthesized: 2,3- two -2- methyl isopropyl butyrate, ethyl -2 methyl N-, 3- two -2- isopropyl butyl amide, N- tert butyl -2, 3- two methyl -2- isopropyl butyl amide, N- methoxy phenyl -2, 3- two -2- methyl isopropyl butyl amide. The structures of all compounds are MS, FT-IR, 1HNMR and other methods were used to characterize.
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