Howard Alper

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.

Cationic polymerization

10.1002/chin.199324113

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ChemInform Abstract: Palladium‐Catalyzed Carbonylation of o‐Iodophenols with Allenes.

ChemInform (1997)

Kou Okuro Howard Alper

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.

Carbonylation

10.1002/chin.199732116

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Reactions of iron pentacarbonyl with some steroid dienes

Journal of Organometallic Chemistry (1968)

Howard Alper John T. Edward

Diene

Iron pentacarbonyl

10.1016/s0022-328x(00)87681-0

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Citations (14)

Palladium-catalyzed synthesis of 4-alkoxycarbonyl-3,4-dihydroisoquinolin-1(2H)-ones

Tetrahedron Letters (2012)

Kazumi Okuro Howard Alper

10.1016/j.tetlet.2012.06.096

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Citations (6)

ChemInform Abstract: Synthesis of Unsaturated Acids by 1,2‐Addition of Formic Acid to Conjugated Dienes Catalyzed by Palladium on Carbon in the Presence of Mono and Bidentate Phosphines.

ChemInform (1995)

G. Vasapollo Anoma Somasunderam Bassam El Ali Howard Alper

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.

Carbon fibers

10.1002/chin.199502066

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CCDC 119403: Experimental Crystal Structure Determination

The Cambridge Structural Database (2000)

Claudia Zucchi Andrea Cornia R. Boese E. Kleinpeter Howard Alper

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Crystal (programming language)

10.5517/cc407q2

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Palladium(0)-Catalyzed Asymmetric Cycloaddition of Vinyloxiranes with Heterocumulenes Using Chiral Phosphine Ligands: An Effective Route to Highly Enantioselective Vinyloxazolidine Derivatives

Journal of the American Chemical Society (1997)

Chitchamai Larksarp Howard Alper

Cycloaddition reaction of 2-vinyloxiranes with carbodiimides using Pd2(dba)3·CHCl3, and TolBINAP as the chiral ligand, in THF at ambient temperature, afforded 4-vinyl-1,3-oxazolidin-2-imines in 70−99% yield and in up to 95% ee. The stereoselectivity is strongly influenced by the structure of the chiral phosphine ligands and substrates, as well as by the reaction conditions. The enantiodetermination step is assumed to be nucleophilic attack of a nitrogen nucleophile on a π-allyl palladium intermediate. Reaction of 2-vinyloxiranes with isocyanates using the same catalyst system afforded 4-vinyl-1,3-oxazolidin-2-ones in high yield but in no greater than 50% ee.

Chiral ligand

Nucleophilic Addition

10.1021/ja964335l

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Citations (122)

Oxidation, Reduction, Rearrangement, and other Synthetically Useful Processes

Organic chemistry (1978)

Howard Alper

10.1016/s1874-5954(13)70009-3

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Citations (7)

Palladium-catalyzed aminocarbonylation of aryl iodides using aqueous ammonia