期刊
SYNTHETIC COMMUNICATIONS
卷 39, 期 1, 页码 175-188出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/00397910802372525
关键词
Ammonium salts; benzimidazoles; 1,2-diketones; beta-ketoesters; OPDA; quinoxalines
o-Phenylenediamines were reacted with carbonyl compounds, beta-ketoesters, and 1,2-diketones in presence of ammonium salts to give benzimidazoles and quinoxalines in very good yields. Ammonium salts are commercial and environmentally benign catalysts.
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