Aryl Diazonium Salt-Triggered Cyclization and Cycloaddition Reactions:Past, Present, and Future

• 作者: Chi Wai Cheung Fa-Guang Zhang Jun-An Ma Zhen Chen
• 来源期刊: 中国化学（英文版）
• 年，卷（期）: 2020,（10）
• 所属期刊栏目: Recent Advances
• 页码范围: 1132-1152
• 页数: 21页
• 语种: 英文
• DOI: 10.1002/cjoc.202000270

摘要

Contents 1.Introduction 1133 2.Cyclization and Cycloaddition Reactions for the Construction of Six-Membered N-Heterocycles 1133 2.1.Construction of cinnolines 1133 2.2.Construction of triazines 1134 2.3.Construction of pyridazines 1135 3.Cyclization and Cycloaddition Reactions for the Construction of Five-Membered N-Heterocycles 1136 3.1.Construction of indazoles 1136 3.2.Construction of benzotriazoles 1138 3.3.Construction of pyrazoles 1138 3.4.Construction of triazoles 1140 3.5.Construction of tetrazoles 1144 3.6.Construction of pentazoles 1145 3.7.Construction of thiadiazolines and oxadiazolones 1146 4.Concluding Remarks 1146 1.Introduction Aryl diazonium salts are amongst the most readily accessible and cheap N-featuring synthetic building blocks attributed to the ubiquitous availability of parent aryl amines.Since the first discovery in 1858 by a German chemist Johann Peter Griess,[1] this type of unique triple N--N bond-bearing compounds have been universally utilized in synthetic chemistry,[2-9] azo dyes,[10,11] surface science,[12,13] and materials.[14]