Bicyclic Hydrazines (bicyclic + hydrazine)

Distribution by Scientific Domains


Selected Abstracts


Desymmetrization of meso -Bicyclic Hydrazines by Rhodium-Catalyzed Enantioselective Hydroformylation

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 13 2008
Chloée Bournaud
Abstract An asymmetric hydroformylation of three meso -bicyclic hydrazines followed by the reduction of the formyl product afforded the corresponding desymmetrized optically enriched hydroxymethyl hydrazines (up to 77.5,%,ee). (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008) [source]


Sequential Copper-Catalyzed Rearrangement,Allylic Substitution of Bicyclic Hydrazines with Grignard Reagents

ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 6 2009
Stefano Crotti
Abstract The problem of the synthesis of trans- 1,4-disubstituted hydrazino- and aminocyclopentenes has been resolved by a sequential copper-catalyzed rearrangement,allylic alkylation of 2,3-diazabicyclo[2.2.1]heptenes. The cis -fused 5,5-membered allylic carbazate which is formed in situ by a novel copper(II) triflate [Cu(OTf)2]/(±)-BINAP-catalyzed rearrangement, can be alkylated with a broad spectrum of Grignard reagents with a predominant SN2,-regioselectivity. The N-Boc protecting group proved to be optimal as regards yields, reaction times and regioselectivities. [source]


ChemInform Abstract: Ligand Control in Enantioselective Desymmetrization of Bicyclic Hydrazines: Rhodium(I)-Catalyzed Ring-Opening versus Hydroarylation.

CHEMINFORM, Issue 19 2009
Jane Panteleev
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]


Rhodium-Catalyzed Asymmetric Arylative Ring Opening of Bicyclic Hydrazines.

CHEMINFORM, Issue 14 2007
Ferruccio Bertolini
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]


Palladium/Lewis Acid Catalyzed Reactions of Bicyclic Hydrazines with Organostannanes: A General Methodology for the Stereoselective Synthesis of 3,4-Disubstituted Cyclopentenes.

CHEMINFORM, Issue 37 2006
V. S. Sajisha
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]


Desymmetrization of meso -Bicyclic Hydrazines by Rhodium-Catalyzed Enantioselective Hydroformylation

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 13 2008
Chloée Bournaud
Abstract An asymmetric hydroformylation of three meso -bicyclic hydrazines followed by the reduction of the formyl product afforded the corresponding desymmetrized optically enriched hydroxymethyl hydrazines (up to 77.5,%,ee). (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008) [source]