Keto Esters (keto + ester)

Distribution by Scientific Domains
Distribution within Chemistry


Selected Abstracts


ChemInform Abstract: Phase Transfer Catalyzed Enantioselective Alkylation of ,-Benzoyloxy-,-Keto Ester.

CHEMINFORM, Issue 28 2009
Takuya Hashimoto
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]


New Three-Component Reaction: Novel Formation of a Seven-Membered Ring by the Unexpected Reaction at the ,-Position of the ,-Keto Ester.

CHEMINFORM, Issue 36 2007
Hiromichi Fujioka
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]


ChemInform Abstract: Synthesis of Pyrimidinones by Action of Benzamidine on a Benzocycloheptenic ,-Keto Ester.

CHEMINFORM, Issue 17 2002
Nadine Muller
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]


Enantiopure (9-Anthryl)(2-piperidyl)- and (9-Anthryl)(2-pyridyl)methanols , Their Use as Chiral Modifiers for Heterogeneous Hydrogenation of Keto Esters over Pt/Al2O3

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 5 2007
Arlette Solladiť-Cavallo
Abstract A route toward the synthesis of the erythro isomer of (9-anthryl)(2-piperidyl)methanol is presented as well as resolution and assignment of the structure (through NMR). The use of both the erythro and threo enantiopure isomers of this new amino alcohol, and its precursor [(9-anthryl)(2-pyridyl)methanol], as chiral modifiers for the Pt/Al2O3 hydrogenation of ethyl lactate showed that the erythro isomer is not necessarily the most efficient chiral modifier. This is probably because of the 9-anthryl group. The enantioselectivities that this compound provides are not, as one would expect, higher than those observed with the naphthyl group.(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007) [source]


Highly Enantioselective Michael Addition of Cyclic 1,3-Dicarbonyl Compounds to ,,,-Unsaturated ,-Keto Esters

ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 10 2010
Xing-Kuan Chen
Abstract A highly enantioselective Michael addition of cyclic 1,3-dicarbonyl compounds to ,,,-unsaturated ,-keto esters catalyzed by amino acid-derived thiourea-tertiary-amine catalysts is presented. Using 5,mol% of a novel tyrosine-derived thiourea catalyst, a series of chiral coumarin derivatives were obtained in excellent yields (up to 99%) and with up to 96% ee under very mild conditions within a short reaction time. [source]


Highly Enantioselective Michael Addition of ,-Substituted Cyano Ketones to ,,,-Unsaturated ,-Keto Esters using Bifunctional Thiourea-Tertiary Amine Catalysts: An Easy Access to Chiral Dihydropyrans

ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 17 2009
Sheng-Li Zhao
Abstract An asymmetric Michael addition of ,-substituted cyano ketones to ,,,-unsaturated ,-keto esters to form chiral dihydropyrans catalyzed by a series of ,-amino acid-derived thiourea-tertiary amines is presented. A novel tyrosine-derived thiourea catalyst was identified as the optimal catalyst providing the desired product in 91,95% yields and with 90,96% ee at a low catalyst loading of 2.0,mol%. The utility of the reaction was exemplified by facile conversion of the dihydropyran product into pharmaceutically useful dihydropyridine. [source]


Axial Chirality Control by 2,4-Pentanediol for the Alternative Synthesis of C3*-TunePhos Chiral Diphosphine Ligands and Their Applications in Highly Enantioselective Ruthenium-Catalyzed Hydrogenation of ,-Keto Esters

ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 16 2009
Xianfeng Sun
Abstract A highly efficient strategy for the synthesis of a series of C3*-TunePhos chiral diphosphine ligands was well established with several remarkable features. The synthetic utility of these ligands was explored for the ruthenium-catalyzed asymmetric hydrogenation of ,-keto esters. Up to 99% ee values were achieved for the enantioselective synthesis of ,-hydroxy acid derivatives, which are very important chiral building blocks for the synthesis of a variety of natural products and biologically active molecules. [source]


ChemInform Abstract: Axial Chirality Control by 2,4-Pentanediol for the Alternative Synthesis of C3*-TunePhos Chiral Diphosphine Ligands and Their Applications in Highly Enantioselective Ruthenium-Catalyzed Hydrogenation of ,-Keto Esters.

CHEMINFORM, Issue 10 2010
Xianfeng Sun
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]


ChemInform Abstract: One-Pot Efficient Synthesis of Aryl ,-Keto Esters from Aryl-Ketones.

CHEMINFORM, Issue 10 2010
Jing Zhuang
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]


ChemInform Abstract: A Rapid and Green Approach to Chiral ,-Hydroxy Esters: Asymmetric Transfer Hydrogenation (ATH) of ,-Keto Esters in Water by Use of Surfactants.

CHEMINFORM, Issue 8 2010
Lu Yin
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]


ChemInform Abstract: Direct Catalytic Asymmetric Aldol Reaction of ,-Keto Esters with Formaldehyde Promoted by a Dinuclear Ni2 -Schiff Base Complex.

CHEMINFORM, Issue 1 2010
Shinsuke Mouri
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]


ChemInform Abstract: Development of a Formal [4 + 1] Cycloaddition: Pd(OAc)2 -Catalyzed Intramolecular Cyclopropanation of 1,3-Dienyl ,-Keto Esters and MgI2 -Promoted Vinylcyclopropane,Cyclopentene Rearrangement.

CHEMINFORM, Issue 27 2009
Rockford W. Coscia
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]


ChemInform Abstract: Facile and Diastereoselective Synthesis of ,-Acetamido Ketones and Keto Esters via Direct Mannich-Type Reaction.

CHEMINFORM, Issue 22 2009
Hui Mao
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]


ChemInform Abstract: Highly Enantioselective Friedel,Crafts Reaction of 4,7-Dihydroindoles with ,,,-Unsaturated ,-Keto Esters by Chiral Broensted Acids.

CHEMINFORM, Issue 9 2009
Mi Zeng
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]


ChemInform Abstract: Stereoselective Synthesis of ,-Butyrolactones via Organocatalytic Annulations of Enals and Keto Esters.

CHEMINFORM, Issue 52 2008
Yi Li
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]


ChemInform Abstract: Selective Synthesis of ,-Substituted ,-Keto Esters from Aldehydes and Diazoesters on Mesoporous Silica Catalysts.

CHEMINFORM, Issue 45 2008
Hiroaki Murata
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]


ChemInform Abstract: Assembly of Isoquinolines via CuI-Catalyzed Coupling of ,-Keto Esters and 2-Halobenzylamines.

CHEMINFORM, Issue 45 2008
Bao Wang
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]


ChemInform Abstract: Highly Stereoselective Oxy-Michael Additions to ,,,-Unsaturated ,-Keto Esters: Rapid Enantioselective Synthesis of 3-Hydroxybutenolides.

CHEMINFORM, Issue 30 2008
Xin Xiong
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]


ChemInform Abstract: Enantioselective Addition of Dimethylzinc to ,-Keto Esters.

CHEMINFORM, Issue 16 2008
Gonzalo Blay
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]


ChemInform Abstract: Synthesis of Tertiary ,-Hydroxy Acids by Silylene Transfer to ,-Keto Esters.

CHEMINFORM, Issue 13 2008
Brett E. Howard
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]


Formation of ,-Substituted ,-Keto Esters via Zinc Carbenoid Mediated Chain Extension.

CHEMINFORM, Issue 48 2007
Weimin Lin
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]


Synthesis of ,-Keto Esters by the Rhodium-Catalyzed Reaction of Cyanoformate with Arylboronic Acids.

CHEMINFORM, Issue 46 2007
Hiroshi Shimizu
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]


Highly Enantioselective Hydrogenation of ,-Alkyl and ,-(,-Chloroalkyl) Substituted ,-Keto Esters.

CHEMINFORM, Issue 41 2007
Iyad Karame
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]


SnCl4 -Mediated Reactions of Cyclopropyl Alkyl Ketones with ,-Keto Esters.

CHEMINFORM, Issue 12 2007
Yong-Hua Yang
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]


An Efficient Synthesis of Achiral and Chiral Cyclic Dehydro-,-Amino Acid Derivatives Through Nucleophilic Addition of Amines to ,,,-Unsaturated ,-Keto Esters.

CHEMINFORM, Issue 41 2006
Francisco Palacios
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]


Efficient Synthesis of ,-Keto Esters from Enamines and EDA.

CHEMINFORM, Issue 48 2005
Dan Huang
Abstract For Abstract see ChemInform Abstract in Full Text. [source]


[3 + 3] Cyclocondensation of 1-Alkyl-3,4-dihydroisoquinolines with ,-Keto Esters.

CHEMINFORM, Issue 27 2005
New Anellation Reaction in a Series of Cyclic Schiff, s Bases.
No abstract is available for this article. [source]


Asymmetric 1,4-Addition of ,-Keto Esters to Cyclic Enones Catalyzed by Ru Amido Complexes.

CHEMINFORM, Issue 22 2005
Hui Wang
Abstract For Abstract see ChemInform Abstract in Full Text. [source]


Microwave-Induced Acetoacetylation of Isoxazolyl Amines with ,-Keto Esters.

CHEMINFORM, Issue 11 2005
E. Rajanarendar
Abstract For Abstract see ChemInform Abstract in Full Text. [source]


Formation of a Quaternary Carbon Center Through the Pd(0)/PhCOOH-Catalyzed Allylation of Cyclic ,-Keto Esters and 1,3-Diketones with Alkynes.

CHEMINFORM, Issue 4 2005
Nitin T. Patil
Abstract For Abstract see ChemInform Abstract in Full Text. [source]