‘Click Synthesis’ of 1H-1,2,3-Triazolyl-Based Oxiconazole (=(1Z)-1-(2,4-Dichlorophenyl)-2-(1H-imidazol-1-yl)ethanone O-[(2,4-Dichlorophenyl)methyl]oxime) Analogs
作者:Mohammad Navid Soltani Rad、Zeinab Asrari、Somayeh Behrouz、Gholam Hossein Hakimelahi、Ali Khalafi-Nezhad
DOI:10.1002/hlca.201100189
日期:2011.12
four steps (Scheme 1). Oximation of phenacyl chloride (1) followed by azidation of 2‐chloro‐1‐phenylethanone oxime (2) provided azido ketoxime 3. The CuI‐catalyzed Huisgen cycloaddition of 3 with terminal alkynes gave the 4‐substituted (at the triazole) 2‐(1H‐1,2,3‐triazol‐1‐yl)‐1‐phenylethanone oximes 4a–4i. The O‐alkylation of 4a–4i with various alkyl halides resulted in the formation of the target molecules
在四个步骤中,通过Huisgen环加成反应,完成了一些具有1 H 1,2,3-三唑基残基的氧康唑类似物5a - 5v的“点击合成” (流程1)。苯甲酰氯的氧化(1),然后2-氯-1-苯基乙酮肟的叠氮化(2)提供了叠氮基酮肟3。CuI催化的3与末端炔烃的Huisgen环加成反应得到4-取代的(在三唑上)2-(1 H -1,2,3-三唑-1-基)-1-苯基乙酮肟4a - 4i。4a的O-烷基化– 4i与各种卤代烷一起以高收率形成了目标分子5a – 5v。