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Diastereoselective Synthesis (diastereoselective + synthesis)

Distribution by Scientific Domains
Chemistry100%

Kinds of Diastereoselective Synthesis

  • highly diastereoselective synthesis
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    Selected Abstracts

    ChemInform Abstract: One-Pot Catalytic Enantio- and Diastereoselective Syntheses of anti-, syn-cis-Disubstituted, and syn-Vinyl Cyclopropyl Alcohols.

    CHEMINFORM, Issue 28 2010
    Hun Young Kim
    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 Catalytic Enantio- and Diastereoselective Syntheses of anti-, syn-cis-Disubstituted, and syn-Vinyl Cyclopropyl Alcohols.

    CHEMINFORM, Issue 28 2010
    Hun Young Kim
    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]

    1-Alkoxyamino-2-nitroalkanes as Key Building Blocks for a Chemo- and Diastereoselective Synthesis of a New Type of Polyfunctionalized N -Alkoxypiperidine

    EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 28 2010
    M. Ángeles López-García
    Abstract A highly efficient conversion of ,-nitrostyrenes into a new kind of functionalized N -alkoxy-2-hydroxypiperidine in two steps was developed, giving excellent yields and diastereoselectivity. The prepared compounds are the first examples of N -alkoxy-2-hydroxypiperidines. The synthetic approach involved the conjugate addition of alkoxyamines to ,-nitrostyrenes, followed by Michael addition of the isolated nitroalkoxyamines to ,,,-unsaturated carbonyl compounds, and intramolecular addition of the alkoxyamino group to the carbonyl functionality of the (non-isolated) adducts. Although three stereogenic centers are formed, only one diastereoisomer was detected. This unprecedented sequence of reactions can also be performed in a one-pot fashion. [source]

    Diastereoselective Synthesis of Heteroaromatic Glycine Derivatives

    EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 29 2008
    Trygve Andreassen
    Abstract A TMSOTf promoted addition of an N - tert -butanesulfinyl ,-imino ester to five-membered aromatic heterocycles furnishes optically active heteroaromatic glycine derivatives with moderate-to-good yield in diastereomeric ratios up to 99,%. The absolute configuration of two of the addition products were solved by X-ray analysis. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008) [source]

    Diastereoselective Synthesis of -Hydroxy Sulfoxides: Enzymatic and Biomimetic Approaches

    EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 2 2007
    Stefano Colonna
    Abstract Stereoselectivities of up to 98,% have been found in the enzymatic synthesis of ,-hydroxy sulfoxides catalyzed by cyclohexanone monooxygenase (CHMO). The diastereoselectivity of the "one-pot" preparation of the title compounds in the presence of bovine serum albumin has also been investigated. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007) [source]

    Diastereoselective Synthesis of New P-Stereogenic (ortho -Hydroxyaryl)diazaphospholidine,Borane Complexes by a Totally Stereoselective P,O to P,C Migration Rearrangement

    EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 6 2006
    Christian J. Ngono
    Abstract The totally diastereoselective synthesis of new P-stereogenic (o -hydroxyaryl)diazaphospholidines, in the form of their borane complexes 4a,4h, is described. The efficiency of this procedure is based both, on a one-pot and totally diastereoselective synthesis of the precursors (ortho -bromoaryloxy)diazaphosphospholidine,borane complexes 3a,3h, and on a stereoselective P,O to P,C migration rearrangement. A X-ray diffraction study of the structures of the product 4f and his precursor 3f shows unambiguously the totally stereoselectivity of the P,O to P,C rearrangement with clean retention of the phosphorus configuration.(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006) [source]

    Michael Reaction of Nitroalkanes with ,-Nitroacrylates under a Solid Promoter: Advanced Regio- and Diastereoselective Synthesis of Nitro-Functionalized ,,,-Unsaturated Esters and 1,3-Butadiene-2-carboxylates

    ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 9 2010
    Alessandro Palmieri
    Abstract A new class of nitro-functionalized ,,,-unsaturated esters has been prepared by a regio- and diastereoselective Michael addition of nitroalkanes to ,-nitroacrylates, performed at room temperature, under carbonate on polymer as promoter, and in the presence of ethyl acetate as eco-friendly solvent. Moreover, by the modular choice of the reaction conditions the method allows the synthesis of 1,3-butadiene-2-carboxylates. [source]

    Diastereoselective Synthesis of 2,6- trans -Disubstituted Piperidines via Sequential Cross-Metathesis,Cationic Cyclisation

    ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 1-2 2007
    Stefan Mix
    Abstract Ruthenium-catalysed cross-metathesis of protected homoallylamine derivatives with vinyl carbinols furnished allylic alcohols, which underwent stereoconvergent cyclisation to trans -tetrahydropyridines upon treatment with BF3,OEt2. The new methodology was used for the preparation of enantiopure piperidine and indolizidine natural products. [source]

    ChemInform Abstract: Diastereoselective Synthesis of 6-Functionalized 4-Aryl-1,3-oxazinan-2-ones and Their Application in the Synthesis of 3-Aryl-1,3-aminoalcohols and 6-Arylpiperidine-2,4-diones.

    CHEMINFORM, Issue 42 2010
    Sven Mangelinckx
    Abstract Treatment of the N-unprotected homoallylamine carbamates (I) with several electrophiles such as Br2, PhSeBr, I2, or NBS causes ring closure to give the title compounds (II), (V), or (VII) with up to 90% cis-selectivity. [source]

    ChemInform Abstract: K10-Catalyzed Highly Diastereoselective Synthesis of Aziridines.

    CHEMINFORM, Issue 29 2010
    Dmitry Borkin
    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: L-Proline-Catalyzed Three-Component Domino [3 + 2 + 1] Annulation for the Regio- and Diastereoselective Synthesis of Highly Substituted Thienothiopyrans Containing Three or Four Stereocenters.

    CHEMINFORM, Issue 18 2010
    Sethuraman Indumathi
    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: Domino Multicomponent Michael,Michael,Aldol Reactions under Phase-Transfer Catalysis: Diastereoselective Synthesis of Pentasubstituted Cyclohexanes.

    CHEMINFORM, Issue 17 2010
    Diana I. S. P. Resende
    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: Diastereoselective Synthesis of ,-Dispiroiminolactone Bearing Naphthalene or Bipyridine Pendant Groups

    CHEMINFORM, Issue 6 2010
    Malek T. Maghsoodlou
    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: Diastereoselective Synthesis of trans-,-Lactams Using a Simple Multifunctional Catalyst.

    CHEMINFORM, Issue 44 2009
    Ciby J. Abraham
    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: Diastereoselective Synthesis of Pentasubstituted ,-Butyrolactones from Silyl Glyoxylates and Ketones Through a Double Reformatsky Reaction.

    CHEMINFORM, Issue 36 2009
    Stephen N. Greszler
    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: Diastereoselective Synthesis of Bicyclic ,-Lactams via Ring Expansion of Monocyclic ,-Lactams.

    CHEMINFORM, Issue 27 2009
    Stijn Dekeukeleire
    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: One-Pot Diastereoselective Synthesis of Densely Functionalized 2H-Indeno[2,1-b]furans.

    CHEMINFORM, Issue 18 2009
    1-b]furan-, 2-trichloroethoxy)-2H-indeno [, 3-dicarboxylate., 8a-Dihydro-8-oxo-8a-(, Single-Crystal X-Ray Structure of Dimethyl
    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: A Sakurai,Prins,Ritter Reaction Sequence for the Diastereoselective Synthesis of 4-Amidotetrahydropyrans Catalyzed by Bismuth Triflate.

    CHEMINFORM, Issue 3 2009
    Gowravaram Sabitha
    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: P2O5 -Promoted Efficient and Diastereoselective Synthesis of Substituted 5-Methylene-dihydropyran-2,6-diones and 3-Methylene-3,4-dihydropyran-2-ones

    CHEMINFORM, Issue 49 2008
    Vijay Singh
    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 Chemo- and Diastereoselective Synthesis of Substituted Tetrahydropyran-4-ones via Organocatalytic oxa-Diels,Alder Reactions of Acyclic ,,,-Unsaturated Ketones with Aldehydes.

    CHEMINFORM, Issue 25 2008
    Liang-Qiu Lu
    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: Diastereoselective Synthesis of ,-Lactams by a One-Pot, Four-Component Reaction.

    CHEMINFORM, Issue 13 2008
    Jingqiang Wei
    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: Enantio- and Diastereoselective Synthesis of syn-,-Hydroxyallylsilanes via a Chiral (Z)-,-Silylallylboronate.

    CHEMINFORM, Issue 13 2008
    Ricardo Lira
    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 Diastereoselective Synthesis of New Indolopyrroloquinolines Through Intramolecular Imino Diels,Alder Reactions.

    CHEMINFORM, Issue 4 2008
    Vikram Gaddam
    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: Diastereoselective Synthesis of 1-Aryl-2-amino-cyclopropane Carboxylates.

    CHEMINFORM, Issue 1 2008
    Trude Melby
    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]

    Highly Diastereoselective Synthesis of ,-Carboxy-,-lactams and Their Ethyl Esters via Sc(OTf)3 -Catalyzed Imino Mukaiyama-Aldol Type Reaction of 2,5-Bis(trimethylsilyloxy)furan with Imines.

    CHEMINFORM, Issue 49 2007
    Manat Pohmakotr
    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]

    Diastereoselective Synthesis of 2-Monosubstituted and 2,6-Disubstituted Piperidines.

    CHEMINFORM, Issue 42 2007
    Isabelle Abrunhosa-Thomas
    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]

    Two-Step Formal [3 + 2] Cycloaddition of Enones/Enals and Allenyl MOM Ether: Gold-Catalyzed Highly Diastereoselective Synthesis of Cyclopentanone Enol Ether Containing an All-Carbon Quaternary Center.

    CHEMINFORM, Issue 39 2007
    Xiaogen Huang
    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]

    Novel Diastereoselective Synthesis of (E)- and (Z)-Allylsilanes via Organoboranes.

    CHEMINFORM, Issue 39 2007
    Narayan G. Bhat
    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]

    Diastereoselective Synthesis of 2-Aryl-3-vinyl-2,3-dihydrobenzo[b]furans Through a Sakurai Reaction: A Mechanistic Proposal.

    CHEMINFORM, Issue 16 2007
    Leticia Jimenez-Gonzalez
    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]