Ph<sub>3</sub>P-mediated highly selective C(α)–P coupling of quinone monoacetals with R<sub>2</sub>P(O)H: convenient and practical synthesis of <i>ortho</i>-phosphinyl phenols
作者:Ruwei Shen、Ming Zhang、Jing Xiao、Chao Dong、Li-Biao Han
DOI:10.1039/c8gc02918k
日期:——
A highlyselective Ph3P-mediated C(α)–P coupling reaction of quinone monoacetals with secondary phosphine oxides is developed to provide an effective method for the synthesis of a wide array of ortho-phosphinylphenols in good to excellent yields. This protocol can be adopted for scale-up synthesis directly from cheap and abundant phenols, and the products can be easily obtained in high yields by simple
A new stereoselective arylative cyclopropanation process involving treatment of halogenated dienone systems in the presence of a Michael donor containing a nitro-aryl-sulfone has been developed. This transformation enables production of an arylated cyclopropane under mild conditions and occurs via a Michael–Smiles ring closure cascade process, reflecting the concepts of green chemistry and atom economy
A double oxidation procedure for the preparation of halogen-substituted para-benzoquinone monoketals: asymmetric synthesis of (−)-harveynone
作者:Daniel R. Hookins、Richard J.K. Taylor
DOI:10.1016/j.tetlet.2010.10.047
日期:2010.12
The double oxidation of halophenols with hypervalent iodine reagents in methanol provides a simple procedure to prepare halo-1,4-benzoquinone monoketals. Seven examples of this procedure are reported as is the conversion of 3-iodo-4,4-dimethoxycyclohexa-2,5-dienone into the natural product, (-)-harveynone. (C) 2010 Elsevier Ltd. All rights reserved.
[EN] NOVEL OCTAHYDRO-INDENO DERIVATIVES AND PHARMACEUTICAL COMPOSITION COMPRISING THE SAME<br/>[FR] NOUVEAUX DÉRIVÉS OCTAHYDRO-INDÉNO ET COMPOSITION PHARMACEUTIQUE LES CONTENANT
申请人:FOOD SCIENCE CO LTD
公开号:WO2008140150A1
公开(公告)日:2008-11-20
[EN] The present invention relates to novel octahydro indeno derivatives, pharmaceutically acceptable salts, hydrates, solvates and stereoisomers thereof, and pharmaceutical compositions for treating or preventing cancer comprising the same. Since the compounds according to the present invention have high cytotoxicity against cancer cells, they may be usefully used as medical uses such as anticancer agents or antibiotics. [FR] L'invention concerne de nouveaux dérivés octahydro-indéno, leurs sels, hydrates, solvates et stéréoisomères acceptables sur le plan pharmaceutique, et des compositions pharmaceutiques servant à la thérapie ou à la prophylaxie du cancer, qui contiennent lesdits dérivés. Etant donné que ces composés présentent une cytotoxicité élevée contre les cellules cancéreuses, ils sont utiles dans des applications médicales en tant qu'agents anti-cancer ou antibiotiques.