in addition to a small amount of demethoxylated naphthofuran II and benzoindolinone III (Scheme 1, eq. 1). Although the yield of the heterocyclic compounds II and III was poor, the carbon-carbon bond formation efficiently occurred during the reaction. We also reported the facile synthesis of 3,4-dihydro-2(1H)-quinolinones, 540 HETEROCYCLES, Vol. 90, No. 1, 2015
Ag2O-Mediated Intramolecular Oxidative Coupling of Acetoacetanilides for the Synthesis of 3-Acetyloxindoles
作者:Wei Yu、Zhengsen Yu、Lijuan Ma
DOI:10.1055/s-0030-1258584
日期:2010.10
The intramolecular oxidative Csp²-Csp³ coupling of N-substituted acetoacetanilides was achieved by using Ag2O as the oxidant. The reaction constitutes a convenient approach toward 3-acetyloxindoles from unfunctionalized acetoacetanilides.
Oxygen‐Involved Oxidative Deacetylation of α‐Substituted β‐Acetyl Amides – Synthesis of α‐Keto Amides
作者:Dianjun Li、Wei Yu
DOI:10.1002/adsc.201300660
日期:2013.12.16
Abstractα‐Substituted β‐acetyl amides could undergo CC bond cleavage to form α‐keto amides when treated with copper(II) chloride (CuCl2) and boron trifluoride diethyl etherate (BF3⋅OEt2) under an oxygen atmosphere. The yield can be increased by the addition of tert‐butyl hydroperoxide which alone can also effect the reaction. The reaction provides a new protocol for the synthesis of α‐keto amides.magnified image