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3,954 Newest Publications in organic letters

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Trisubstituted 2-Trifluoromethyl Pyrrolidines via Catalytic Asymmetric Michael Addition/Reductive Cyclization

18-04-2014 | Michael T. Corbett; Qihai Xu; Jeffrey S. Johnson, Organic Letters, 2014

The stereoselective synthesis of trisubstituted 2-trifluoromethyl pyrrolidines by asymmetric Michael addition/hydrogenative cyclization is described. The direct organocatalytic addition of 1,1,1-trifluoromethylketones to nitroolefins proceeds under mild reaction conditions and low catalyst ...

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Synthesis of a Novel UDP-carbasugar as UDP-galactopyranose Mutase Inhibitor

18-04-2014 | Sandy El Bkassiny; Inès N’Go; Charlotte M. Sevrain; Abdellatif Tikad; Stéphane P. Vincent, Organic Letters, 2014

The multistep synthesis of a novel UDP-C-cyclohexene, designed as a high energy intermediate analogue of the UDP-galactopyranose mutase (UGM) catalyzed isomerization reaction, is reported. The synthesis of the central carbasugar involved the preparation of a galactitol derivative bearing two ...

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Beyond Benzoin Condensation: Trimerization of Aldehydes via Metal-Free Aerobic Oxidative Esterification of Aldehydes with Benzoin Products in the Presence of Cyanide

18-04-2014 | Yoo-Jin Kim; Na Yeun Kim; Cheol-Hong Cheon, Organic Letters, 2014

An unusual trimerization of aldehydes in the presence of cyanide via metal-free aerobic oxidative esterification under ambient conditions is described. Various aromatic aldehydes provided the corresponding oxidative esterification products in good to excellent yields. Mechanistic studies ...

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One-Pot Synthesis of 4-Substituted 3-Amino-2-cyanothiophenes Involving O-Ethyl Thioformate

18-04-2014 | Haiming Zhang; Mark S. Bednarz; Ngiap-Kie Lim; Gonzalo Hernandez; Wenxue Wu, Organic Letters, 2014

Organic Letters DOI: 10.1021/ol500895t

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Three-Component Pd/Cu-Catalyzed Cascade Reactions of Cyclic Iodoniums, Alkynes, and Boronic Acids: An Approach to Methylidenefluorenes

17-04-2014 | Daqian Zhu; Yongcheng Wu; Baojian Wu; Bingling Luo; A. Ganesan; Fu-Hai Wu; Rongbiao Pi; Peng Huang; Shijun Wen, Organic Letters, 2014

Linear diaryliodonium salts are widely used as arylating reagents for C–C and C–X bond formation. Meanwhile, synthetic applications of cyclic iodoniums are relatively rare although they offer the opportunity to set up reaction cascades. We demonstrate an atom and step economical three-component ...

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Short Total Synthesis of (−)-Kainic Acid

17-04-2014 | Kentaro Oe; Yasufumi Ohfune; Tetsuro Shinada, Organic Letters, 2014

Organic Letters DOI: 10.1021/ol5009526

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Solvent-Dependent Divergent Functions of Sc(OTf)3 in Stereoselective Epoxide-Opening Spiroketalizations

17-04-2014 | Indrajeet Sharma; Jacqueline M. Wurst; Derek S. Tan, Organic Letters, 2014

Organic Letters DOI: 10.1021/ol500853q

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One-Pot Synthesis of 2,4-Disubstituted Indoles from N-Tosyl-2,3-dichloroaniline Using Palladium–Dihydroxyterphenylphosphine Catalyst

17-04-2014 | Miyuki Yamaguchi; Kei Manabe, Organic Letters, 2014

Organic Letters DOI: 10.1021/ol500711z

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Total Synthesis of Panaginsene with Structural Revision

17-04-2014 | Sujeong Geum; Hee-Yoon Lee, Organic Letters, 2014

Organic Letters DOI: 10.1021/ol500849m

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