98760-26-0Relevant articles and documents
Bifunctional phase-transfer catalysts for fixation of CO2 with epoxides under ambient pressure
Li, Yue-Dan,Cui, Dong-Xiao,Zhu, Jun-Chao,Huang, Ping,Tian, Zhuang,Jia, Yan-Yan,Wang, Ping-An
, p. 5231 - 5237 (2019)
A series of bifunctional phase-transfer catalysts with a quaternary onium center and a hydrogen-bonding donor group were prepared for the fixation of CO2 with commercially available epoxides under mild conditions by using a CO2 balloon (1 atm). In the presence of 2.5 mol% of achiral bifunctional phase-transfer catalysts, cyclic carbonates were obtained in good to excellent yields (up to 95%). Additionally, optical carbonates and epoxides were obtained through the kinetic resolution of rac-epoxides by 1 mol% of chiral bifunctional phase-transfer catalysts with low enantioselectivities. These catalysts featured a simple synthetic route, good modularity and high efficiency.
Organocatalytic valorisation of glycerol: Via a dual NHC-catalysed telescoped reaction
Axelsson,Antoine-Michard,Sundén
supporting information, p. 2477 - 2481 (2017/07/17)
A general telescoped reaction for the NHC-catalysed carbonation and aerobic esterification of glycerol and 2-amino-2-methylpropane-1,3-diol has been developed. The reaction provides highly functionalised glycerol derivatives in good to excellent yields (up to 95%) using low catalyst loadings and ambient conditions.
METHOD OF CONVERTING ALCOHOL TO HALIDE
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Page/Page column 51; 179; 180, (2017/01/02)
The present invention relates to a method of converting an alcohol into a corresponding halide. This method comprises reacting the alcohol with an optionally substituted aromatic carboxylic acid halide in presence of an N-substituted formamide to replace a hydroxyl group of the alcohol by a halogen atom. The present invention also relates to a method of converting an alcohol into a corresponding substitution product. The second method comprises: (a) performing the method of the invention of converting an alcohol into the corresponding halide; and (b) reacting the corresponding halide with a nucleophile to convert the halide into the nucleophilic substitution product.