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Solvent‐Dependent Enantiodivergent Mannich‐Type Reaction: Utilizing a Conformationally Flexible Guanidine/Bisthiourea Organocatalyst

Flex control: Malonate and tert?butoxycarbonyl (Boc)?protected imines react in the presence of the flexible catalyst 1 to furnish the S or the R adduct depending upon the solvent used.

出版机构:WILEY‐VCH Verlag

刊物名称:Angewandte Chemie International Edition

出版时间:2010

ISSN:1433-7851

数据源:报刊文摘

Asymmetric Bromolactonization Catalyzed by a C3‐Symmetric Chiral Trisimidazoline

A productive alliance: In an enantioselective organocatalytic bromolactonization of 5?substituted hex?5?

出版机构:WILEY‐VCH Verlag

刊物名称:Angewandte Chemie International Edition

出版时间:2010

ISSN:1433-7851

数据源:报刊文摘

Enantio‐ and Diastereocontrolled Total Synthesis of (+)‐Strictifolione

A concise and practical enantioselective synthesis of (+)?strictifolione has been achieved in high diastereomeric excess using Jacobsen's hydrolytic kinetic resolution, proline?catalyzed sequential ??aminoxylation and Horner?Wadsworth?Emmons olefination of aldehyde and cross olefin/ring?

出版机构:WILEY‐VCH Verlag

刊物名称:European Journal of Organic Chemistry

出版时间:2010

ISSN:1434-193X

数据源:报刊文摘

Diarylprolinol Silyl Ether Catalyzed Asymmetric Friedel–Crafts Alkylation of Indoles with α,β‐Unsaturated Aldehydes: Enhanced Enantioselectivity and Mechanistic Investigations

A highly enantioselective Friedel?Crafts alkylation of indoles with ?,??unsaturated aldehydes with excellent enantioselectivities (up to >99?%?

出版机构:WILEY‐VCH Verlag

刊物名称:European Journal of Organic Chemistry

出版时间:2011

ISSN:1434-193X

数据源:报刊文摘

Recent Advances on the Organocatalyzed Enantioselective α-heterofunctionalization of Carbonyl Compounds

Using this straightforward synthetic strategy, a wide range of valuable chiral building blocks such as ?-amino acids, ?-amino alcohols, epoxides, 1,2-diols, ?-sulfenylated, ?-selenenylated and ?

出版机构:Bentham Science Publishers

刊物名称:Current Organic Chemistry

出版时间:2011

ISSN:1385-2728

数据源:报刊文摘

A Practical and Efficient Total Synthesis of Potent Insulinotropic (2S,3R,4S)-4-Hydroxyisoleucine through a Chiral N-Protected γ-Keto-α-aminoester

This compact economical and scalable sequence enables to perfectly control three contiguous chiral centers. It does not involve any chromatographic purification, and the desired compound is obtained in >99 % de, >99 % ee, and 22 % overall yield under our optimized conditions.

出版机构:WILEY‐VCH Verlag

刊物名称:European Journal of Organic Chemistry

出版时间:2010

ISSN:1434-193X

数据源:报刊文摘

New (S)-proline derivatives as catalysts for the enantioselective aldol reaction

2R)-Hydroxy(phenyl)methyl]phenylpyrrolidine-2-carboxamide, (2 SEMPHASISEMPHASIS Type"Italic">NS

出版机构:Springer US

刊物名称:Russian Chemical Bulletin

出版时间:2009

ISSN:1066-5285

数据源:报刊文摘

Organocatalytic Asymmetric Synthesis of trans-1,3-Disubstituted Tetrahydroisoquinolines via a Reductive Amination/Aza-Michael Sequence

No Abstract

出版机构:WILEY‐VCH Verlag

刊物名称:Chemistry - A European Journal

出版时间:2010

ISSN:0947-6539

数据源:报刊文摘

Lewis Base Catalyzed Enantioselective Allylation of α,β-Unsaturated Aldehydes

No Abstract

出版机构:WILEY‐VCH Verlag

刊物名称:Chemistry - A European Journal

出版时间:2010

ISSN:0947-6539

数据源:报刊文摘