Synthesis of amino acids and related compounds. 42. A novel transformation of imidazolines into 2,4,6-trisubstituted pyrimidine derivatives
摘要:
2,5-Diaryl-4-(chloromethyl)imidazoline derivatives 5a-g, obtained from N-acyl-alpha-amino ketone derivatives 1, were rearranged with sodium hydride in dimethylformamide. Spontaneous air oxidation led to 2,4-di- and 2,4,6-triarylpyrimidine derivatives 6a-g in good yields.
Alkyl, Unsaturated, (Hetero)aryl, and N-Protected α-Amino Ketones by Acylation of Organometallic Reagents
作者:Alan R. Katritzky、Khanh N. B. Le、Levan Khelashvili、Prabhu P. Mohapatra
DOI:10.1021/jo0614801
日期:2006.12.1
Stable and easily accessible N-acylbenzotriazoles, derived from a variety of aliphatic, unsaturated, (hetero)aromatic, and N-protected α-amino carboxylicacids, were reacted with Grignard and heteroaryllithium reagents to afford corresponding ketones in good to excellent yields.