Deprotection of Thioacetals Using K2S2O8/[bmim]Br as a Mild and Efficient Reagent under Solvent-Free Conditions
作者:Abdol R. Hajipour、Majid Mostafavi、Arnold E. Ruoho
DOI:10.1007/s00706-007-0650-1
日期:2007.6
A straightforward and effective procedure for the deprotection of thioacetals to the corresponding carbonyl compounds using potassium persulfate and the ionic liquid [ bmim ]Br undersolvent-freeconditions is reported. A variety of aliphatic and aromatic 1,3-dithiolanes or 1,3-dithanes was deprotected to the corresponding carbonyl derivatives by this procedure.
Enzyme assisted syntheses of chiral building blocks for isosters of diglycerides, phospholipids and PAF
作者:Karsten Lange、Manfred P. Schneider
DOI:10.1016/j.tetasy.2004.07.047
日期:2004.9
Lipase catalyzed desymmetrizations of suitably substituted, achiral 1,3-diols lead to the corresponding chiral building blocks of high enantiomeric purities, starting materials for the synthesis of isosteric carba-analogues of 1,2-sn-diglycerides and phospholipids with interesting biological activities. Lipase catalyzed resolutions of the corresponding ether derivatives lead to the corresponding building blocks for carba-analogues of PAF. (C) 2004 Elsevier Ltd. All rights reserved.