The synthesis of imidazo[1,5-a]pyridines through denitrogenative transannulation of pyridotriazoles with nitriles using BF3·Et2O as catalyst has been described. The combination of solvents (dichlorobenzene-dichloroethane) plays a crucial role in achieving quantitative yields of desired products under metal-free conditions.
已经描述了使用BF 3 ·Et 2 O作为催化剂通过吡啶三唑与腈的脱氮脱环反应合成咪唑并[1,5- a ]吡啶。溶剂的组合(二氯苯-二氯乙烷)在无金属条件下获得所需产品的定量收率方面起着至关重要的作用。