Synthesis of allylamides from allyl halides, carbon monoxide, and titanium–nitrogen complexes prepared from molecular nitrogen
作者:Kazutaka Ueda、Miwako Mori
DOI:10.1016/j.tetlet.2004.02.072
日期:2004.3
4-Phenylbut-3-enamide could be synthesized from corresponding 3-chloroprop-2-enylbenzene, carbon monoxide (1 atm), and titanium–nitrogen complexes, prepared from Ti(OiPr)4, Li, TMSCl, and molecular nitrogen (1 atm), using a palladium catalyst. The reaction proceeds via transmetalation of the titanium–nitrogen complex to an acylpalladium complex. PtBu3 as a ligand of the palladium catalyst, afforded
4-苯基丁-3-烯酰胺可以由相应的3-氯丙-2-基苯,一氧化碳(1 atm)和钛-氮配合物合成,该配合物由Ti(O i Pr)4,Li,TMSCl和分子氮制备(1 atm),使用钯催化剂。该反应通过钛-氮配合物的重金属化反应生成酰基铝配合物。P吨卜3作为钯催化剂的配体,得到了良好的结果,并且Li和的TMSCl的量影响酰胺的产率。当在氩气而不是一氧化碳的气氛下使用钯络合物上的二齿配体进行反应时,获得烯丙胺衍生物。