23996-55-6Relevant articles and documents
Synthetic method N - cyanoethyl imidazole compound
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Paragraph 0033-0036, (2021/10/16)
The N - cyanoethyl imidazole compound is prepared from imidazoles and derivatives thereof as raw materials and acrylonitrile as Michael addition acceptors, and is free of catalysts. The N - cyanoethyl imidazole compound is synthesized in a solvent-free and air atmosphere at a high yield in a one-step method. The method is simple to operate, environmentally friendly, economical and practical, stable in performance and wide in product market. The reaction does not need special post-treatment, no by-product is generated, and the method is suitable for industrial production.
Efficient protocol for Aza-Michael addition of N-heterocycles to α,β-unsaturated compound using [Ch]OH and [n-butyl urotropinium]OH as basic ionic liquids in aqueous/solvent free conditions
Kumar, Sitanshu,Kaur, Amanpreet,Singh, Vasundhara
, p. 193 - 201 (2019/01/24)
The present work emphasizes on a green methodology using designed and synthesized basic ionic liquid, [n-butyl Urotropinium]OH, and commercially available aqueous solution of choline hydroxide [Ch]OH as catalysts for executing Aza-Michael addition of N-heterocycles to α,β-unsaturated compounds at room temperature. The highlighting features of these catalysts include using low concentration of both catalysts along with [Ch]OH being low cost and biodegradable, [n-butyl Urotropinium]OH significantly enhancing the high substrate/catalyst ratio to obtain the desired products in high yield and purity in most cases. Further, both catalysts were recyclable and recoverable up to five cycles.
GAS TREATING SOLUTIONS CONTAINING IMIDAZOLE-AMINE COMPOUNDS
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Paragraph 0103, (2018/04/02)
Systems comprising a composition where an imidazole is tethered to an amine and a solvent are described herein. Methods of their preparation and use are also described herein. The methods of using the systems include the reduction of volatile compounds from gas streams and liquid stream.