Synthesis of Highly Substituted Pyridines through Copper-Catalyzed Condensation of Oximes and α,β-Unsaturated Imines
作者:Wei Wen Tan、Yew Jin Ong、Naohiko Yoshikai
DOI:10.1002/anie.201704378
日期:2017.7.3
A copper-catalyzed condensation reaction of oxime acetates and α,β-unsaturated ketimines to give pyridine derivatives is reported. The reaction features mild conditions, high functional-group compatibility, and high regioselectivity with respect to unsymmetrical oxime acetates, thus allowing the preparation of a wide range of polysubstituted pyridines, many of which are not readily accessible by conventional
Base-Promoted β-C(sp<sup>3</sup>)–H Functionalization of Enaminones: An Approach to Polysubstituted Pyridines
作者:Jinhai Shen、Dingding Cai、Changsheng Kuai、Yunqi Liu、Ming’e Wei、Guolin Cheng、Xiuling Cui
DOI:10.1021/acs.joc.5b00635
日期:2015.7.2
A convenient "one-pot" base-promoted synthesis of polysubstituted pyridines from 1-arylethylamines and ynones through the direct beta-C(sp(3))-H functionalization of enaminones under metal-free conditions has been developed. An intermolecular Michael addition reaction and an intramolecular condensation were involved in this procedure, which features high regioselectivity; high efficiency, and environmental friendliness. Various polysubstituted pyridines were provided in up to 92% yield for 34 examples.
Katritzky, Alan R.; Elisseou, E. Michael; Bashiardes, George, Journal of Chemical Research, Miniprint, 1983, # 2, p. 301 - 320
作者:Katritzky, Alan R.、Elisseou, E. Michael、Bashiardes, George、Patel, Ranjan C.
DOI:——
日期:——
KATRITZKY, A. R.;ELISSEOU, E. M.;BASHIARDES, G.;PATEL, R. C., J. CHEM. RES. SYNOP., 1983, N 2, 27
作者:KATRITZKY, A. R.、ELISSEOU, E. M.、BASHIARDES, G.、PATEL, R. C.