Synthesis of mono-di-, and tri-substituted amidines
阅读：881发布：2022-11-30
专利汇可以提供Synthesis of mono-di-, and tri-substituted amidines专利检索，专利查询，专利分析的服务。并且N-substituted amidines are synthesized by the novel process comprising successively contacting with a nitrile compound (a) a Lewis acid catalyst, (b) an alkyl halide and (c) an amine. The Nsubstituted amidines produced are strong bases and thus useful for a wide variety of applications.，下面是Synthesis of mono-di-, and tri-substituted amidines专利的具体信息内容。
1. A PROCESS FOR THE SYNTHESIS OF A N-SUBSTITUTED AMIDINE IN A YIELD BETWEEN ABOUT 30 PER CENT AND ABOUT 80 PER CENT, SAID AMIDINE HAVING THE FORMULA:
1. A process for the synthesis of a N-substituted amidine in a yield between about 30 per cent and about 80 per cent, said amidine having the formula:
2. A process as defined in claim 1 wherein step b is conducted in the presence of a liquid inert organic solvent.
3. A process as defined in claim 2 wherein said solvent is methylene chloride.
4. A process as defined in claim 1 wherein in step a, isopropyl chloride is employed and said reaction temperature is about 0*C.
5. A process as defined in claim 1 wherein in step a, acetonitrile or benzonitrile is contacted with said ferric chloride for a time period not exceeding about 15 minutes to form a ferric chloride complex of said acetonitrile or benzonitrile and then contacting said complex with t-butyl chloride for a time period not exceeding about 30 minutes to form said nitrilium salt product, and wherein in step b, said temperature is about 0*C.
6. A process as defined in claim 1 wherein in step a, acetonitrile is employed.
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