Facile Syntheses of Histamine- and Imidazole-4-propionic Acid–Derived Room-Temperature Ionic Liquids
摘要:
We report synthesis of histamine- and imidazole-4-propionic acid-based ionic liquids containing a variety of alkyl and aryl groups placed at the two different positions of the constituent imidazole ring in convenient steps in good yields.
Facile Syntheses of Histamine- and Imidazole-4-propionic Acid–Derived Room-Temperature Ionic Liquids
摘要:
We report synthesis of histamine- and imidazole-4-propionic acid-based ionic liquids containing a variety of alkyl and aryl groups placed at the two different positions of the constituent imidazole ring in convenient steps in good yields.
and efficient three-step sequence for the deamination of α-aminoesters is reported. This method is based on the NaBH4-mediated selective reduction of α-diazoesters to α-hydrazonoesters and has been successfully applied to the deamination of several representative α-aminoesters including some l-cysteine ethyl ester derivatives, key intermediates in the synthesis of a series of CysLT1 antagonists.