Org Lett. 2015 Sep 18;17(18):4526-9. doi: 10.1021/acs.orglett.5b02220. Epub 2015 Sep 02.
Organic letters
Tongyu Xu, Howard Alper
PMID: 26331787 DOI: 10.1021/acs.orglett.5b02220
An efficient synthesis of indolizine derivatives by palladium-catalyzed oxidative carbonylation of propargylic pyridines has been developed. The reaction can be conducted at room temperature and under 3 bar of CO in the presence of Pd2(dba)3 or Pd/C. The catalyst Pd/C could be easily removed from the reaction and recycled.