Silica-supported phosphorus pentoxide: a reusable catalyst for S,S-acetalization of carbonyl groups under ambient conditions
摘要:
Phosphorus pentoxide supported on silica gel (P2O5/SiO2) efficiently acts as a highly active and reusable catalyst for cyclic and non-cyclic S,S-acetalization of a variety of carbonyl compounds under mild, solvent-free and ambient conditions. This method offers significant advantages such as high conversion, clean work-up, short reaction times and simplicity in operation.[GRAPHICS].
1-Alkenyl thioethers of glycols are described. The alkenyl thioethers possess central nervous system activity and are useful as tranquilizers.
描述了一种甘醇的烯基硫醚。这些烯基硫醚具有中枢神经系统活性,可用作镇静剂。
Titanium tetrachloride, an efficient and convenient reagent for thioacetalization1,1
作者:Vijay Kumar、Sukh Dev
DOI:10.1016/s0040-4039(00)81637-8
日期:1983.1
Microwave Thermolysis Vi : A Rapid and General Method for Dethioacetalization Using “Clayan” in Dry Media
作者:H. M. Meshram、Gondi Sudershan Reddy、G. Sumitra、J. S. Yadav
DOI:10.1080/00397919908086080
日期:1999.4
A variety of thioacetals, dithiolanes and dithianes are deprotected into their carbonyl compounds using clay supported ammonium nitrate "Clayan" under microwave irradiation. The present method avoids the use of toxic oxidants and excess of solvent.
Clay supported ammonium nitrate “Clayan”: A mild and eco-friendly reagent for dethioacetalization
作者:H.M. Meshram、Gondi Sudershan Reddy、J.S. Yadav
DOI:10.1016/s0040-4039(97)10349-5
日期:1997.12
A variety of thioacetals and dithianes are deprotected into their carbonyl compounds in mild conditions using clay supported ammonium nitrate. The fertilizing nature of ammonium nitrate makes the procedure environmentally safe. (C) 1997 Elsevier Science Ltd.
Complex bases. XIV. Use of sodamide containing complex bases as versatile, inexpensive reagents to generate carbanions