作者:Cécile Perrio-Huard、Catherine Aubert、Marie-Claire Lasne
DOI:10.1039/a908991h
日期:——
The reductive amination of carboxylic acids was shown to be promoted by 2-chloropyridine hydrochloride (3 eq). It allowed the one-pot preparation of N-alkylamines in yields up to 93% from carboxylic acid (1 eq), amine (1 eq) and sodium borohydride (5 molar eq). The reaction, carried out with [11C]magnesium halide carboxylates (11C, β+, t1/2∶20 min), led to N-[11C]alkylamines in 20–25% radiochemical
显示出2-氯吡啶盐酸盐(3当量)促进了羧酸的还原胺化。它允许一锅法制备N-烷基胺,其由羧酸(1当量),胺(1当量)和硼氢化钠(5摩尔当量)制备的产率高达93%。用[ 11 C]卤化镁羧酸盐(11 C,β +,t 1/2 ∶20 min)进行的反应以20–25%的放射化学收率产生N- [ 11 C]烷基胺(衰变校正为轰击结束,准备从[ 11 C] CO 2开始的30分钟)。在这种情况下,添加吡啶鎓盐只会导致相应的[ 11C]羧酸。