679412-75-0Relevant academic research and scientific papers
New method for the synthesis of diversely functionalized imidazoles from N-acylated α-aminonitriles
Zhong, Yong-Li,Lee, Jaemoon,Reamer, Robert A.,Askin, David
, p. 929 - 931 (2007/10/03)
(Equation presented) A new general method for the synthesis of medicinally important diversely functionalized imidazoles from N-acylated α-aminonitriles has been developed. N-Acylated α-aminonitriles were reacted with triphenylphosphine and carbon tetrahalide to afford 2,4-disubstituted 5-halo-1H-imidazoles in good yield. This new methodology was applied for the synthesis of 2-butyl-4-chloro-5-hydroxymethylimidazole. These halo-imidazoles can be directly converted to 2,4,5-trisubstituted imidazoles through palladium-catalyzed coupling reactions.
Process for preparing 2,4,5-trisubstituted imidazoles from N-acylated alpha-amino nitriles
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Page 4, (2008/06/13)
The invention is a process for preparing an imidazole of formula I which comprises treating an N-acylated α-amino nitrile with a phosphine and a carbon tetrahalide of the formula CX4, wherein X is Cl or Br, to form a haloimidazole of the formula wherein R1 is selected from the group consisting of hydrogen, C1-6alkyl, —CH2-aryl, and aryl; and R2 is selected from the group consisting of hydrogen, C1-6alkyl, —CH2—O-aryl and aryl; and X is selected from the group consisting of Cl and Br.
