Intramolecular Oxycyanation of Alkenes by Cooperative Pd/BPh<sub>3</sub> Catalysis
作者:Dennis C. Koester、Masato Kobayashi、Daniel B. Werz、Yoshiaki Nakao
DOI:10.1021/ja301375c
日期:2012.4.18
intramolecular oxycyanation of alkenes through the cleavage of O-CN bonds and the subsequent insertion of double bonds. The use of 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (Xantphos) as a ligand for palladium is essential for allowing the transformation to proceed with high chemo- and regioselectivity. Variously substituted dihydrobenzofurans with both a tetra-substituted carbon and cyano functionality
Palladium-catalyzed heteroallylation of unactivated alkenes – synthesis of citalopram
作者:Joanne F. M. Hewitt、Lewis Williams、Pooja Aggarwal、Craig D. Smith、David J. France
DOI:10.1039/c3sc51222c
日期:——
A palladium-catalyzed difunctionalization of unactivated alkenes with tethered nucleophiles is reported. The versatile reaction occurs with simple allylic halides and can be carried out under air. The methodology provides rapid access to a wide array of desirable heterocyclic targets, as illustrated by a concise synthesis of the widely prescribed antidepressantcitalopram.
The present invention provides compounds of Formula I: and pharmaceutically acceptable salts or solvates thereof, as modulators of liver X receptors (LXR), compositions comprising any of such novel compounds, methods of using these compounds or compositions as medicaments for prevention or treatment of diseases or disorders related to liver X receptor (LXR), as well as methods of preparing these LXR modulators and using them in the manufacture of medicaments.
chemistry is reported. Both phenol and aromatic or aliphatic acid derivatives could be used under operator-friendly conditions (room temperature, technical solvents, under air). The discovery of the superiority of benziodoxolone-derived hypervalent iodine reagent 3d as an alkyne transfer reagent further expands the rapidly increasing utility of hypervalent iodine reagents in catalysis and is expected
[EN] HETEROCYCLIC FUSED BENZENE RING COMPOUNDS, PREPARATION METHOD THEREFOR, AND USE THEREOF<br/>[FR] COMPOSÉS CYCLIQUES DE BENZÈNE FUSIONNÉS HÉTÉROCYCLIQUES, LEUR PROCÉDÉ DE PRÉPARATION ET LEUR UTILISATION<br/>[ZH] 杂环并苯环类化合物及其制备方法和用途
申请人:[en]WUHAN HUMANWELL INNOVATIVE DRUG RESEARCH AND DEVELOPMENT CENTER LIMITED COMPANY;[zh]武汉人福创新药物研发中心有限公司