One-Pot Synthesis of 3,4,5-Trisubstituted 1,2,4-Triazoles via the Addition of Hydrazides to Activated Secondary Amides

被引:68
作者
Bechara, William S. [1 ]
Khazhieva, Inna S. [1 ]
Rodriguez, Elsa [1 ]
Charette, Andre B. [1 ]
机构
[1] Univ Montreal, Dept Chem, Fac Arts & Sci, Ctr Green Chem & Catalysis,Stn Downtown, Montreal, PQ H3C 3J7, Canada
基金
加拿大创新基金会; 加拿大自然科学与工程研究理事会;
关键词
HIGHLY STEREOSELECTIVE-SYNTHESIS; VINYL-SUBSTITUTED OXADIAZOLES; SOLID-PHASE SYNTHESIS; SELECTIVE INHIBITORS; ORGANOMETALLIC REAGENTS; COORDINATION CHEMISTRY; BIOLOGICAL EVALUATION; MARAVIROC UK-427,857; BOND FORMATION; IV INHIBITOR;
D O I
10.1021/acs.orglett.5b00128
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A general approach has been developed for the one-pot synthesis of 3,4,5-trisubstituted 1,2,4-triazoles from secondary amides and hydrazides via triflic anhydride activation followed by microwave-induced cyclodehydration. In addition, the 1,2,4-triazole moiety is shown to be a useful directing group for Ru-catalyzed C-H arylation. Access to 1,2,4-triazolophenanthridine can be achieved from the reaction products using a Pd-catalyzed intramolecular C-H functionalization reaction.
引用
收藏
页码:1184 / 1187
页数:4
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