在温和且可扩展的电解条件下,已开发出无金属和无氧化剂的分子内脱氢N–N键的形成。从容易获得的N-(2-吡啶基)am有效地合成了各种有价值的1,2,4-三唑并[1,5- a ]吡啶。反应在恒定电流条件下,在简单的不分隔电池中进行,其中n Bu 4 NBr作为氧化还原介体和电解质。该方案适用于抗糖尿病化合物关键中间体的有效合成。
readily synthesized from N-(pyridin-2-yl)benzimidamides via phenyliodine bis(trifluoroacetate)-mediated intramolecular annulation. This novel strategy allows for the convenient construction of a 1,2,4-triazolo[1,5-a]pyridine skeleton through direct metal-free oxidative N–N bond formation, featuring a short reaction time and high reaction yields.
具有生物学重要性的1,2,4-三唑并[1,5- a ]吡啶很容易通过苯基碘双(三氟乙酸)介导的分子内环化反应从N-(吡啶-2-基)苯甲酰胺酰胺合成。这种新颖的策略允许通过直接形成无金属的氧化性N–N键来方便地构建1,2,4-三唑并[1,5- a ]吡啶骨架,其反应时间短且反应产率高。
Intramolecular electrochemical dehydrogenative N–N bond formation for the synthesis of 1,2,4-triazolo[1,5-<i>a</i>]pyridines
scalable electrolytic conditions. Various valuable 1,2,4-triazolo[1,5-a]pyridines were synthesized efficiently from the readily available N-(2-pyridyl)amidines. The reactions were conducted in a simple undivided cell under constant current conditions with nBu4NBr as both the redox mediator and the electrolyte. This protocol was applied to the efficient synthesis of key intermediates for anti-diabetic compounds
在温和且可扩展的电解条件下,已开发出无金属和无氧化剂的分子内脱氢N–N键的形成。从容易获得的N-(2-吡啶基)am有效地合成了各种有价值的1,2,4-三唑并[1,5- a ]吡啶。反应在恒定电流条件下,在简单的不分隔电池中进行,其中n Bu 4 NBr作为氧化还原介体和电解质。该方案适用于抗糖尿病化合物关键中间体的有效合成。