摘要
在酸催化下 ,邻苯二胺和取代苯基异硫氰酸酯在 Hg O或 Hg Cl2 存在下 ,经缩合 -脱硫环合得 2 - (取代苯氨基 )苯并咪唑。该方法具有条件温和、反应迅速、收率高等特点。利用波谱分析和元素分析对新化合物 5
Arylaminobenzimidazole was conveniently synthesized from o-phenylenediamine by condensation-cyclodesulphurization with arylisothiocyanate in the presence of mercuric oxide(or mercuric chloride) and conc hydrochloric acid. The reaction was readily performed with good yields under mild conditions. The new compound 5a was characterized by +1H NMR, MS, IR and elemental analysis.
出处
《化学通报》
CAS
CSCD
北大核心
2004年第11期862-864,共3页
Chemistry
