[EN] ISOLATION AND SUBSEQUENT UTILIZATION OF SATURATED FATTY ACIDS AND A-OLEFINS IN THE PRODUCTION OF ESTER-BASED BIOLUBRICANTS [FR] ISOLEMENT ET UTILISATION ULTÉRIEURE D'ACIDES GRAS SATURÉS ET D'ALPHA-OLÉFINES DANS LA PRODUCTION DE BIOLUBRIFIANTS À BASE D'ESTERS
Efficient synthesis of 3,4-ethylenedioxythiophenes (EDOT) by Mitsunobu reaction
作者:Dolores Caras-Quintero、Peter Bäuerle
DOI:10.1039/b207640c
日期:——
Using the Mitsunobureaction as a key step, a general and efficient method for the synthesis of EDOT monomers has been developed. Novel substituted EDOTs and the first chiral derivatives were generated in high yields.
Process for the preparation of vicinal diols and/or epoxides
申请人:Solvay Interox GmbH
公开号:US05344946A1
公开(公告)日:1994-09-06
The present invention provides a process for the preparation of vicinal diols and/or epoxides by the oxidation of olefinically-unsaturated compounds with the use of an inorganic heptavalent rhenium compound as catalyst and of hydrogen peroxide as oxidation agent, wherein the reaction is carried out in a solvent selected from the group consisting of organic phosphoric acid esters and ethers with a boiling point above 50.degree. C. under atmospheric conditions.
The SmCl3 catalysed electrochemical coupling of carbonyl compounds affords 1,2-diols in good yields.
SmCl 3催化的羰基化合物的电化学偶合以良好的产率提供1,2-二醇。
ISOLATION AND SUBSEQUENT UTILIZATION OF SATURATED FATTY ACIDS AND ALPHA-OLEFINS IN THE PRODUCTION OF ESTER-BASED BIOLUBRICANTS
申请人:Miller Stephen Joseph
公开号:US20090285728A1
公开(公告)日:2009-11-19
The present invention is generally directed to the synthesis and/or manufacture of ester-based lubricant compositions. The present invention is also directed to methods of making these and other similar lubricant compositions, and to systems for implementing such methods (processes). In some embodiments, the methods for making such ester-based lubricants utilize a biomass precursor (e.g., triglyceride-bearing vegetable oils) such that the lubricant compositions generated by the methods and systems of the present invention can be properly deemed biolubricants. In these or other embodiments, lubricant precursor species can also be sourced or derived from Fischer-Tropsch (FT) and/or long-chain paraffin pyrolysis reaction products. The ester component of the lubricant compositions, produced in accordance with the methods and systems of the present invention, comprises largely diester species.
The evaluation of dicyclopentadienylsamarium as a reagent in organic synthesis
作者:J.L. Namy、J. Collin、J. Zhang、H.B. Kagan
DOI:10.1016/s0022-328x(00)99769-9
日期:1987.7
SmCp2, which is easily prepared from SmI2, has been screened as a reducing agent for organic chemistry. In particular, SmCp2 promotes the pseudo-Barbier reaction between carbonylcompounds (aldehydes and ketones) and aliphatic or allylic halides more efficiently than does SmI2.