ChemInform Abstract: Synthesis of β-Dicarbonyl Compounds Using 1-Acylbenzotriazoles as...

1
2000 alkylation, arylation, dealkylation, dearylation, C-acylation, olefination alkylation, arylation, dealkylation, dearylation, C-acylation, olefination O 0280 42 - 050 Synthesis of β-Dicarbonyl Compounds Using 1-Acylbenzotriazoles as Regioselective C-Acylating Reagents. — The benzotriazoles (I) are found to be efficient and regioselective C-arylation reagents for the generation of 1,3-diketones. The latter exist in equilibrium with the enol tautomers, whose ratio is highly structure-dependent. Steric effects also play an important role on the ratio of C- to O-acylation [see reaction of the ketones (X) and (XIII)]. — (KATRITZKY, ALAN R.; PASTOR, ALFREDO; J. Org. Chem. 65 (2000) 12, 3679-3682; Dep. Chem., Cent. Heterocycl. Compd., Univ. Fla., Gainesville, FL 32611, USA; EN) 1

Transcript of ChemInform Abstract: Synthesis of β-Dicarbonyl Compounds Using 1-Acylbenzotriazoles as...

Page 1: ChemInform Abstract: Synthesis of β-Dicarbonyl Compounds Using 1-Acylbenzotriazoles as Regioselective C-Acylating Reagents.

2000 alkylation, arylation, dealkylation, dearylation, C-acylation, olefination

alkylation, arylation, dealkylation, dearylation, C-acylation, olefinationO 0280

42 - 050Synthesis of β-Dicarbonyl Compounds Using 1-Acylbenzotriazoles asRegioselective C-Acylating Reagents. — The benzotriazoles (I) arefound to be efficient and regioselective C-arylation reagents for the generationof 1,3-diketones. The latter exist in equilibrium with the enol tautomers, whoseratio is highly structure-dependent. Steric effects also play an important role onthe ratio of C- to O-acylation [see reaction of the ketones (X) and (XIII)]. —(KATRITZKY, ALAN R.; PASTOR, ALFREDO; J. Org. Chem. 65 (2000) 12,3679-3682; Dep. Chem., Cent. Heterocycl. Compd., Univ. Fla., Gainesville, FL32611, USA; EN)

1

A Review of Organosilanes in Organic Chemistry - · PDF fileA Review of Organosilanes in Organic Chemistry • Silyl Protecting and Derivatisation Reagents ... 16. Denmark, S. E.;

A Review of Organosilanes in Organic Chemistry - · PDF fileA Review of Organosilanes in Organic Chemistry • Silyl Protecting and Derivatisation Reagents ... 16. Denmark, S. E.;

The Asymmetric Synthesis and Reactions of...modern synthetic chemist’s armoury. New methods for the synthesis of α-functionalised organolithium2,3 and organomagnesium reagents are

The Asymmetric Synthesis and Reactions of...modern synthetic chemist’s armoury. New methods for the synthesis of α-functionalised organolithium2,3 and organomagnesium reagents are

Diastereoselective Addition of Grignard Reagents to α · PDF filetation (first reported in 1967) intermediate with a Grignard reagent ... Diastereoselective Addition of Grignard Reagents

Diastereoselective Addition of Grignard Reagents to α · PDF filetation (first reported in 1967) intermediate with a Grignard reagent ... Diastereoselective Addition of Grignard Reagents

Antibodies and Related Reagents for Cellular Metabolism ·  · 2016-12-13UNPARALLELED PRODUCT QUALITY, VALIDATION, AND TECHNICAL SUPPORT ... ribosomal subunit Product Pathways Motif

Antibodies and Related Reagents for Cellular Metabolism ·  · 2016-12-13UNPARALLELED PRODUCT QUALITY, VALIDATION, AND TECHNICAL SUPPORT ... ribosomal subunit Product Pathways Motif

Rhodium-Catalyzed Chemo- and Regioselective Decarboxylative Addition of β -

Rhodium-Catalyzed Chemo- and Regioselective Decarboxylative Addition of β -

ϒ-REGIOSELECTIVE FUNCTIONALIZATION OF 3 … · ϒ-REGIOSELECTIVE FUNCTIONALIZATION OF 3-ALKENYILINDOLES VIA EXTENDED ALKYLIDENEINDOLENINE INTERMEDIATES Lucia Lenti Thesis to obtain

ϒ-REGIOSELECTIVE FUNCTIONALIZATION OF 3 … · ϒ-REGIOSELECTIVE FUNCTIONALIZATION OF 3-ALKENYILINDOLES VIA EXTENDED ALKYLIDENEINDOLENINE INTERMEDIATES Lucia Lenti Thesis to obtain

shodhganga.inflibnet.ac.inshodhganga.inflibnet.ac.in/bitstream/10603/25855/9/09...1.1 Introduction Titanium reagents have been used in a multitude of reactions in organic, inorganic

shodhganga.inflibnet.ac.inshodhganga.inflibnet.ac.in/bitstream/10603/25855/9/09...1.1 Introduction Titanium reagents have been used in a multitude of reactions in organic, inorganic

ars.els-cdn.com · Web viewlactone with Grignard reagents: Synthesis of amino-keto-alcohols and β-amino acid derivatives Özlem GÜNDOĞDU, Pınar TURHAN, Aytekin KÖSE, Ramazan

ars.els-cdn.com · Web viewlactone with Grignard reagents: Synthesis of amino-keto-alcohols and β-amino acid derivatives Özlem GÜNDOĞDU, Pınar TURHAN, Aytekin KÖSE, Ramazan

Thequestforhighly$ enanoselecve $$ chiral$hypervalentarylλ ...€¦ · type 3 as electrophilic reagents, we observe a facial selectivity upon reaction with alkenes and ketones and

Thequestforhighly$ enanoselecve $$ chiral$hypervalentarylλ ...€¦ · type 3 as electrophilic reagents, we observe a facial selectivity upon reaction with alkenes and ketones and

and Reagents - Sigma-Aldrich

and Reagents - Sigma-Aldrich

Application of nucleophilic fluorinating reagents for the synthesis …doktori.bibl.u-szeged.hu/10076/3/RAM_tézisfüzet_EN_2.3.pdf · 2019-02-13 · Recent advances in the transformations

Application of nucleophilic fluorinating reagents for the synthesis …doktori.bibl.u-szeged.hu/10076/3/RAM_tézisfüzet_EN_2.3.pdf · 2019-02-13 · Recent advances in the transformations

Reactions of the Carbonyl Group - UEF of the Carbonyl Group! ... β-vetivone. Regioselective ... Synthesis of PGE2 Intermediate I OTBS 1. CuI, Ph3P, THF 2. compound 1 3.

Reactions of the Carbonyl Group - UEF of the Carbonyl Group! ... β-vetivone. Regioselective ... Synthesis of PGE2 Intermediate I OTBS 1. CuI, Ph3P, THF 2. compound 1 3.

γ-Regioselective functionalization of 3-alkenylindoles via · of the first catalytic asymmetric reaction of 3-indolylethanoles in the presence of chiral phosphoric acids was notable.

γ-Regioselective functionalization of 3-alkenylindoles via · of the first catalytic asymmetric reaction of 3-indolylethanoles in the presence of chiral phosphoric acids was notable.

Copper(I) Catalyzed Asymmetric 1,2-Addition of Grignard ... · General procedures for the copper-catalyzed 1,2-addition of Grignard reagents. Procedure A: addition to α-substituted

Copper(I) Catalyzed Asymmetric 1,2-Addition of Grignard ... · General procedures for the copper-catalyzed 1,2-addition of Grignard reagents. Procedure A: addition to α-substituted

Micropipetting Basics - · PDF filebiological samples and reagents, ranging from several hundreds of liters to very small microliter (μl) volumes. ... Micropipetting Basics EDVO-Kit

Micropipetting Basics - · PDF filebiological samples and reagents, ranging from several hundreds of liters to very small microliter (μl) volumes. ... Micropipetting Basics EDVO-Kit

Domino Twofold Heck / 6π-Electrocyclization and Regioselective …rosdok.uni-rostock.de/file/rosdok_disshab_0000000594/... · 2018-06-29 · Domino Twofold Heck / 6π-Electrocyclization

Domino Twofold Heck / 6π-Electrocyclization and Regioselective …rosdok.uni-rostock.de/file/rosdok_disshab_0000000594/... · 2018-06-29 · Domino Twofold Heck / 6π-Electrocyclization

RESEARCH ARTICLE Open Access In vitro and in vivo · 2017. 8. 25. · Cranberry products, antibiotics and chemical reagents A commercial cranberry product, NutricranW90 (NC90), was

RESEARCH ARTICLE Open Access In vitro and in vivo · 2017. 8. 25. · Cranberry products, antibiotics and chemical reagents A commercial cranberry product, NutricranW90 (NC90), was

Electronic Supplementary Information · 1 Electronic Supplementary Information Metal-free regioselective C–C bond cleavage in 1,3,5-triazine derivatives of β-diketones Maximilian

Electronic Supplementary Information · 1 Electronic Supplementary Information Metal-free regioselective C–C bond cleavage in 1,3,5-triazine derivatives of β-diketones Maximilian

Copper-catalyzed intermolecular and regioselective ...

Copper-catalyzed intermolecular and regioselective ...

Index [application.wiley-vch.de] · reagents used for 310 ... Fcγ-effector functions 104 engineering 99–102, 101 ... aqueous DNA solutions phenolic extraction of 666 Ardenne, ...

Index [application.wiley-vch.de] · reagents used for 310 ... Fcγ-effector functions 104 engineering 99–102, 101 ... aqueous DNA solutions phenolic extraction of 666 Ardenne, ...