Oxidation of Azides by the HOF·CH<sub>3</sub>CN: A Novel Synthesis of Nitro Compounds
作者:Mira Carmeli、Shlomo Rozen
DOI:10.1021/jo060440u
日期:2006.6.1
aromatic rings, ketones, nitriles, halides, alcohols, and esters are tolerated. Sulfides react with HOF·CH3CN usually at the same rate as azides. Amines and olefins, however, react faster, so they have to be protected first. Nitro derivatives with various oxygen isotopes can be made using the labeled H18OF·CH3CN. In the case of chiral azides the stereochemistry around the nitrogen-bonded carbons is retained
A Versatile Strategy for the Synthesis of 4,5-Dihydroxy-2,3-Pentanedione (DPD) and Related Compounds as Potential Modulators of Bacterial Quorum Sensing
in both Gram-negative and Gram-positive bacteria. In this study, a practical and versatile synthesis of racemic DPD is presented. Compared to previously reported syntheses, the proposed strategy is short and robust: it requires only one purification step and avoids the use of expensive or hazardous startingmaterials as well as the use of specific equipment. It is therefore well suited to the synthesis
[EN] SPIROHYDANTOIN COMPOUNDS AND THEIR USE AS SELECTIVE ANDROGEN RECEPTOR MODULATORS<br/>[FR] COMPOSÉS DE SPIROHYDANTOÏNE ET LEUR UTILISATION COMME MODULATEURS SÉLECTIFS DES RÉCEPTEURS DES ANDROGÈNES
申请人:NOVARTIS AG
公开号:WO2013128421A1
公开(公告)日:2013-09-06
The present invention relates to a compound of formula (1-1 ) in free form or in pharmaceutically acceptable salt form in which the substituents are as defined in the specification; to its preparation, to its use as a medicament and to medicaments comprising it. The present invention further provides a combination of pharmacologically active agents and a pharmaceutical composition.
Streamlined Catalytic Enantioselective Synthesis of α-Substituted β,γ-Unsaturated Ketones and Either of the Corresponding Tertiary Homoallylic Alcohol Diastereomers
作者:Juan del Pozo、Shaochen Zhang、Filippo Romiti、Shibo Xu、Ryan P. Conger、Amir H. Hoveyda
DOI:10.1021/jacs.0c08732
日期:2020.10.21
applicable, practical, and scalable strategy for efficient and enantioselectivesynthesis of β,γ-unsaturated ketones that contain an α-stereogenic center is disclosed. Accordingly, aryl, heteroaryl, alkynyl, alkenyl, allyl, or alkyl ketones that contain an α-stereogenic carbon with an alkyl, an aryl, a benzyloxy, or a siloxy moiety can be generated from readily available starting materials and by the use of
Direct Regioselective Synthesis of Tetrazolium Salts by Activation of Secondary Amides under Mild Conditions
作者:Veronica Tona、Boris Maryasin、Aurélien de la Torre、Josefine Sprachmann、Leticia González、Nuno Maulide
DOI:10.1021/acs.orglett.7b01004
日期:2017.5.19
Tetrazolium salts are biologically active molecules that have found broad applications in biochemical assays. A regioselective synthesis of tetrazolium salts is described through a formal (3 + 2) cycloaddition. The possibility of employing simple amides and azides as starting material and the mild conditions allow a broad functional group tolerance.