Ballesteros, Juan Sanchez; McPhee, Derek James; Hernandez, Dolores Hernandez, Bulletin de la Societe Chimique de France, 1982, vol. 2, # 5-6, p. 176 - 180
Stoichiometric ceric ammonium nitrate (CAN) and a catalytic amount of Pd(PPh3)2Cl2 (5 mol %) can rapidly produce multisubstituted 2-ketofuran-4-carboxylate esters from 2-propargylic 1,3-ketoesters via oxidative O-cyclization reaction. Pd(PPh3)2Cl2 was found to be the crucial catalyst as its inclusion greatly enhanced the rate of the reaction and cleanly afforded the products within minutes. Over 30
Transition-Metal-Catalyzed Domino Reactions: Efficient One-Pot Regiospecific Synthesis of Highly Functionalized Polysubstituted Furans from Electron-Deficient Alkynes and 2-Yn-1-ols
作者:Huanfeng Jiang、Hua Cao、Huawen Huang
DOI:10.1055/s-0030-1258461
日期:2011.4
Based on the reactive behavior of different transition-metal catalysts, three methods for the synthesis of highly functionalized polysubstituted furan derivatives are presented: (i) copper(I) iodide catalyzed regiospecific synthesis of furan aldehydes/ketones from alkynols and diethyl but-2-ynedioate under atmospheric pressure; (ii) nano-Cu2O-catalyzed domino process for the regioselective synthesis
Iron-Catalyzed Domino Process for the Synthesis of α-Carbonyl Furan Derivatives via One-Pot Cyclization Reaction
作者:Huanfeng Jiang、Wenjuan Yao、Hua Cao、Huawen Huang、Derong Cao
DOI:10.1021/jo100813w
日期:2010.8.6
The Fe(ClO4)3-catalyzed intramolecular rearrangement/cyclization/oxidation reaction sequence for the synthesis of α-carbonyl furan derivatives from electron-deficient alkynes and 2-yn-1-ols is reported.
Nano-Cu2O-Catalyzed Formation of CC and CO Bonds: One-Pot Domino Process for Regioselective Synthesis of α-Carbonyl Furans from Electron-Deficient Alkynes and 2-Yn-1-ols
The formation of carbon–carbon and carbon–oxygen bonds continues to be an active and challenging field of chemical research. Nanoparticle catalysis has attracted considerable attention owing to its environmentally benign and high activity toward the reactions. Herein, we described a novel and effective nano‐Cu2O‐catalyzed one‐pot domino process for the regioselective synthesis of α‐carbonyl furans