Stereoselective bioreduction of 1-(5-phenylfuran-2-yl)-ethanones mediated by baker's yeast
作者:Maria Trif、Noémi Hajnalka Kalló、Mara Ana Naghi、László Csaba Bencze
DOI:10.3109/10242422.2011.638374
日期:2012.3
Abstract Baker'syeastmediated reduction of various phenylfuran-2-yl-ethanones has been studied. The influence of the reaction conditions, the type and position of the substituents, as well the presence of various additives on the enantiomeric composition of the products and the reaction yield are discussed. The absolute configuration of the reaction products was established using a retrosynthetic
Oxidative Transformation of 2-Furylanilines into Indolin-3-ones
作者:Ekaterina R. Nasibullina、Elena Y. Mendogralo、Anton A. Merkushev、Anton S. Makarov、Maxim G. Uchuskin
DOI:10.1021/acs.joc.4c00359
日期:——
Oxidation of 2-furylaninlies with m-CPBA followed by treatment with a base provides access to functionalized indolin-3-ones. The designed oxidativetransformation utilizes an underassessed chemical behavior of furyl-containing amines to form a C–N bond via engaging a β-carbon atom of the furan core upon a ring-forming step, thereby providing an alternative disconnection toward nitrogen-containing heterocycles
Substituent effects on the stereochemical outcome of the baker’s yeast-mediated biotransformation of α-hydroxy- and α-acetoxymethyl-5-phenylfuran-2-yl-ethanones
作者:László Csaba Bencze、Csaba Paizs、Monica Ioana Toşa、Florin Dan Irimie
DOI:10.1016/j.tetasy.2010.02.004
日期:2010.3
In this Letter the baker's yeast-mediated biotransformation of variously substituted alpha-hydroxy- and alpha-acetoxymethyl-5-phenylfuran-2-yl-ethanones is described. The stereochemical outcome of the reactions was strongly influenced by the nature of the substituents on the phenyl ring. (C) 2010 Elsevier Ltd. All rights reserved.
Palladium-Catalyzed Decarboxylative C-H Bond Arylation of Furans
作者:Kai Pei、Xiaoming Jie、Huaiqing Zhao、Weiping Su
DOI:10.1002/ejoc.201402278
日期:2014.7
A Pd/PCy3/Ag2CO3 (Cy = cyclohexyl) catalytic system was found to promote decarboxylativearylation through the combination of decarboxylation and C–H bond functionalization. This protocol features a good substrate scope of aromatic carboxylic acids as well as a broad range of functional groups and provides the products in high yields.
Furan ring opening–indole ring closure: recyclization of 2-(2-aminophenyl)furans into 2-(2-oxoalkyl)indoles
作者:Arkady S. Pilipenko、Vladimir V. Mel’chin、Igor V. Trushkov、Dmitry A. Cheshkov、Alexander V. Butin
DOI:10.1016/j.tet.2011.10.114
日期:2012.1
The acid-catalyzedrearrangement of 5-alkyl-2-[2-(sulfonylamino)phenyl]furans into 2-(2-oxoalkyl)indoles is described. When the N-sulfonyl group in the starting compounds was displaced by an N-acyl group, the corresponding indoles were not formed under the same reaction conditions due to the in situ indole deacylation and decomposition. The presence of an alkyl group at the C5 position of the furan