Chalcones Catalyzed (Chalcone + catalyze)

Distribution by Scientific Domains


Selected Abstracts


Highly Enantioselective Michael Addition Reactions of 3-Substituted Benzofuran-2(3H)-ones to Chalcones Catalyzed by a Chiral Alkyl-Substituted Thiourea

ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 7 2010
Xin Li
Abstract A highly enantioselective Michael addition of 3-substituted benzofuran-2(3H)-ones to chalcones catalyzed by a chiral bifunctional thiourea was developed. Several chiral 3,3,-substituted benzofuran-2(3H)-ones derivatives, bearing adjacent quaternary-tertiary stereocenters, were efficiently synthesized with excellent enantioselectivities. [source]


Highly Enantioselective Conjugate Addition of Thioglycolate to Chalcones Catalyzed by Lanthanum: Low Catalyst Loading and Remarkable Chiral Amplification,

ANGEWANDTE CHEMIE, Issue 25 2010
Yonghai Hui
Kleineree,große Wirkung: Mit dem Lanthan(III)-Komplex eines chiralen N,N,-Dioxids als Katalysator verlief die Titelreaktion hoch enantioselektiv und mit hohen Ausbeuten. Besonders bemerkenswert war die große asymmetrische Verstärkung: Das Produkt wurde mit 98,%,ee erhalten, wenn 1,Mol-% L/La(OTf)3 mit 2,%,ee für L eingesetzt wurde. Tf=Trifluormethansulfonyl. [source]


ChemInform Abstract: Efficient Direct Asymmetric Vinylogous Michael Addition Reactions of ,-Butenolides to Chalcones Catalyzed by Vicinal Primary-Diamine Salts.

CHEMINFORM, Issue 30 2010
Junfeng Wang
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: Enantioselective Michael Addition of Malononitrile to Chalcones Catalyzed by a Simple Quinine,Al(OiPr)3 Complex: A Simple Method for the Synthesis of a Chiral 4H-Pyran Derivative.

CHEMINFORM, Issue 51 2009
Jian Shi
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]