The invention relates to a novel process for the preparation of 2- trifluoromethyl isonicotinic acid and esters of the formula I which involves a palladium catalysed carbonylation or cyanation step wherein R1 is hydrogen or Q1-6-alkyl. The 2-trifluoromethyl isonicotinic acid and esters of the formula I are versatile intermediates for the preparation of active pharmaceutical and agrochemical agents such as for instance TAAR 1 agonists of the formula III.
该发明涉及一种新型制备2-三
氟甲基
异烟酸和式I酯的方法,其中包括一步
钯催化的羰基化或
氰化反应,其中R1为氢或Q1-6-烷基。式I的2-三
氟甲基
异烟酸和酯是制备活性药物和农药剂的多功能中间体,例如式III的
TAAR 1激动剂。