Au(I)-Catalyzed Synthesis of Trisubstituted Indolizines from 2-Propargyloxypyridines and Methyl Ketones
作者:Matthew D. Rossler、Colin T. Hartgerink、Emily E. Zerull、Benjamin L. Boss、Abigail K. Frndak、Miles M. Mason、Leslie A. Nickerson、Evan O. Romero、Jaimie E. Van de Burg、Richard J. Staples、Carolyn E. Anderson
DOI:10.1021/acs.orglett.9b01929
日期:2019.7.19
A new Au(I)-catalyzed method for the preparation of trisubstituted indolizines from easily accessible 2-propargyloxy-pyridines is reported. The reaction tolerates a wide range of functionality, allowing for diversity to be introduced in four distinct regions of the product (R, R1, R2, and Ar). The proposed mechanism proceeds via enol addition to an allenamide intermediate and explains the observed
Synthesis of Ester-Substituted Indolizines from 2-Propargyloxypyridines and 1,3-Dicarbonyls
作者:Carolyn E. Anderson、Haleigh I. Bos、Daniel M. Dreher、Colin T. Hartgerink、Chase J. Scholtens、Richard J. Staples
DOI:10.1021/acs.joc.2c01219
日期:2022.8.5
Two new complementary Au(I)-catalyzed methods for the preparation of ester-substituted indolizines from easily accessible 2-propargyloxypyridines and either acetoacetates or dimethyl malonate are reported. These reactions tolerate a wide range of functionality, allowing for diversification at three distinct positions of the product (R, R1, R2). For electron-poor substrates, the highest yields are observed