Synthesis of All‐Carbon Quaternary Centers by Palladium‐Catalyzed Olefin Dicarbofunctionalization
作者:Maximilian Koy、Peter Bellotti、Felix Katzenburg、Constantin G. Daniliuc、Frank Glorius
DOI:10.1002/anie.201911012
日期:2020.2.3
The redox-neutral dicarbofunctionalization of tri- and tetrasubstituted olefins to form a variety of (hetero)cyclic compounds under photoinduced palladium catalysis is described. This cascade reaction process was used to couple styrenes or acryl amides with a broad range of highly decorated olefins tethered to aryl or alkyl bromides (>50 examples). This procedure enables one or two contiguous all-carbon
Facile Approach for the Synthesis of 2,3,4,9-Tetrahydro-1<i>H</i>-xanthen-1-ones and 8,9,10,12-Tetrahydro-11<i>H</i>-benzo[<i>a</i>]xanthen-11-ones via Trapping of <i>o</i>-Quinone Methides
作者:Vitaly A. Osyanin、Elena A. Ivleva、Yuri N. Klimochkin
DOI:10.1080/00397911.2010.545164
日期:2012.6.15
Abstract An efficient, simple synthesis of 2,3,4,9-tetrahydro-1H-xanthene-1-ones and 8,9,10,12-tetrahydro-11H-benzo[a]xanthen-11-ones is reported by one-pot condensation of 3-dimethylamino-2-cyclohexen-1-ones with hydroxybenzyl alcohols, phenol, and 2-naphthol Mannich bases or their quaternized derivatives. The mechanism of the reaction is believed to involve the formation of the o-quinone methide
2-Substituted thiazolidinone and oxazolidinone derivatives for the inhibition of phosphatases and the treatment of cancer
申请人:——
公开号:US20040097566A1
公开(公告)日:2004-05-20
The present invention relates to certain substituted heterocycles, including 2-substituted thiazolidinone and 2-substituted oxazolidinone compounds. These compounds are useful in the treatment of diseases related to uncontrolled cellular proliferation, such as cancer or precancerous conditions. The compounds are also useful for modulating lipid and/or carbohydrate metabolism, and treating Type II diabetes, hyperglycemia or obesity, and for treating inflammatory diseases such as arthritis.
Some disclosed embodiments of the invention relate to compounds having the structures indicated below, or a pharmaceutically acceptable salt thereof.
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