Add time:07/14/2019 Source:sciencedirect.com
The cross-coupling reaction of bis-triisopropylsilyl disulfide 1 on alkynes yielded 1,2-bis-triisopropylsilanylsulfanyl-alkenes 2, a new chemical class. A series of tri and tetrasubstituted olefins 2 were prepared and their behavior toward electrophiles was studied. The triisopropylsilyl groups could be readily removed by treatment with TBAF at 0°C for 1 h or cesium acetate at 70°C for 2 h. Soft and hard electrophiles were submitted to 2 under these conditions. The electrophiles can either react to yield double-addition products with alkyl and activated halides, epoxides and acyl chlorides or cyclic adducts with chloroformate derivatives. In the latter case, 1,3-dithiol-2-ones or 1,3-dithiol-2-thiones are prepared.
We also recommend Trading Suppliers and Manufacturers of 1,2-bis(3-methoxyphenyl)ethanone (cas 6266-57-5). Pls Click Website Link as below: cas 6266-57-5 suppliers
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View