A SIMPLE AND CONVENIENT ONE-POT SYNTHESIS OF FATTY ACID ESTERS FROM HINDERED ALCOHOLS USING<i>N</i>,<i>N</i>-DIMETHYLCHLORO-SULFITEMETHANIMINIUM CHLORIDE AS DEHYDRATING AGENT
作者:Savita Kaul、Ajay Kumar、Bir Sain、A. K. Gupta
DOI:10.1081/scc-120006474
日期:2002.1
ABSTRACT N,N-Dimethylchlorosulfitemethaniminium chloride (SOCl2-DMF) has been found to be an efficient reagent for one-pot synthesis of esters from equimolar amounts of fatty acids and hindered alcohols under mild conditions.
REFRIGERATION MACHINE OIL, COMPOSITION FOR REFRIGERATION MACHINES, AND COMPRESSION-TYPE REFRIGERATION MACHINE
申请人:Idemitsu Kosan Co., Ltd
公开号:EP3351611A1
公开(公告)日:2018-07-25
The refrigerator oil of the present invention contains an oxygen-containing base oil and a viscosity index improver, and has a viscosity index (VI) of 200 or more and a volume resistivity of 1 × 109 Ω·m or more.
Porous film, process for producing the same and absorbent sanitary articles
申请人:MITSUBISHI KASEI VINYL COMPANY
公开号:EP0307116B1
公开(公告)日:1993-08-18
Microwave-promoted synthesis of polyolesters for lubrication oil using a composite catalyst in a solvent-free procedure
作者:Fengxiu Zhang、Guangxian Zhang
DOI:10.1039/c0gc00351d
日期:——
rapid, highly efficient and green synthetic approach to polyol esters for lubrication oils is proposed. Using sulfuric acid and p-toluene sulfonic acid as a composite catalyst and C5–C9 straight-chain monocarboxylic acids, with pentaerythritol (PE) and dipentaerythritol (di-PE) as starting materials, a series of lubricationoil polyol esters were synthesized in the absence of solvent under microwave