Tosylated glycerol carbonate, a versatile bis-electrophile to access new functionalized glycidol derivatives
摘要:
The reactivity of tosylated glycerol carbonate 2 toward nucleophiles has been exploited to generate glycidol analogues protected with carbonate or carbamate groups. The activated glycerol 2 is a reasonable linking agent with thiol and alcohol nucleophiles and an excellent and selective one with primary amines, allowing efficient bis-functionalizations of glycerol. (C) 2009 Elsevier Ltd. All rights reserved.
A new, highly regio- and stereo-selective synthesis of cyclic iodocarbonates of allylic and homoallylicalcohols involving cyclofunctionalization of the corresponding alcohol carbonates is described.
Atmospheric CO2 Fixation by Unsaturated Alcohols Using tBuOI under Neutral Conditions
作者:Satoshi Minakata、Itsuro Sasaki、Toshihiro Ide
DOI:10.1002/anie.200906352
日期:——
Hold on tight! Reaction of CO2 with unsaturatedalcohols and tBuOI to form cyclic carbonates leads to fixation of the greenhouse gas. In contrast to known CO2 fixation methods, this process proceeds under extremely mild conditions.
Chemoenzymatic Synthesis of Chiral Building Blocks Based on the Kinetic Resolution of Glycerol‐Derived Cyclic Carbonates
作者:Constanza Terazzi、Anke Spannenberg、Jan von Langermann、Thomas Werner
DOI:10.1002/cctc.202300917
日期:2023.10.6
the enzymatic kinetic resolution of cyclic carbonates. Several glycerol-derived carbonates were converted reaching er values of up to 99 : 1. Scalability of the reaction and recyclability of Novozym® 435 were demonstrated. Bioactive products were synthesized in good yields (81–89 %) and selectivity (90 : 10–94 : 6 er) using chiral carbonates as buildingblocks.