摘要
利用简便易得的N-取代苄基芳胺的汞化产物,经亚硝化反应得到8种N-取代苄基-N-亚硝基-2-乙酸汞基芳胺,并通过分子内缩合合成了一种苯并咪唑衍生物,其结构经元素分析、1HNMR、IR及X射线单晶衍射确证。此方法为合成咪唑类化合物提供了一条新途径。
Eight kinds of 2-acetomercuri-N,N-( nitroso-4'-substituted benzyl) arylamines were synthesized in high yield by nitrosation of corresponding 2-acetomercuir-N-(4'-substituted benzyl) arylamines and characterized by IR, ^1H NMR, elemental analysis, and the compound 2f was further confirmed by X-ray crystal structure determination. The intramolecular rearrangement-condensation reaction of compounds 2e was carried out in HCl/H2O/EtOH to yield 2-(4'-chlorophenyl)-5-methoxybenzimidazole (3), and the possible reaction mechanism was proposed.
出处
《化学通报》
CAS
CSCD
北大核心
2006年第9期701-704,共4页
Chemistry
基金
国家自然科学基金(20572102)
高等学校博士学科点专项科研基金(20040459008)
河南省自然科学基金(0524270054)资助项目
关键词
分子内重排缩合
汞化合物
苯并咪唑
单晶结构
intramolecular rearrangement-condensation reaction, Mercuration, Benzimidazole derivative, Crystal structure