Phosphonate-containing analogs of cholesteryl ester as novel inhibitors of cholesteryl ester transfer protein
摘要:
A series of phosphorus-containing analogs of cholesteryl ester have been synthesized as potential inhibitors of cholesteryl ester transfer protein (CETP). The most potent inhibitor, phosphonate 7, represents a novel inhibitor of CETP. Copyright (C) 1996 Elsevier Science Ltd
Ce mémoire décrit la synthèse etla caractérisation principalement par RMN du 1H et 31P de monosels etde monoacides à partir dedivers phosphonates porteurs de groupements alkyles de C1à C18 oude groupements alkylènes (allyl et vinyl). Nous avons ëgalement utilisé des composes fonctionnels porteurs d'alcool ou d'acétate etles résultats montrent lasélectivitédela réaction. La méthnde utilisée met
摘要 Ce mémoire décrit la synthèse et la caractérisation principalement par RMN du 1H et 31P de monosels et de monoacides à partir de divers phosphonates porteurs de groupementsalkales de C1à C18 ou de groupementsalkènes (allyl etvinyl)。Nous avons ëgalement utilisé des composes fonctionnels porteurs d'alcool ou d'acétate et les résultats montrent la sélectivité de la réaction。La méthnde utilisée 遇到了
Novel AminoBisPhosphonate Antiwear Additives
申请人:Afton Chemical Corporation
公开号:US20180099985A1
公开(公告)日:2018-04-12
The present invention relates to novel aminobisphosphonate compounds useful as antiwear and/or friction modifier additive components, lubricant additive compositions and lubricant compositions each comprising such compounds, and methods for making and using the same.
Synthese et Etude Structurale D'acides Alkylphosphoniques a Longue Chaine Hydrocarbonee
作者:M. Gaboyard、Y. Hervaud、B. Boutevin
DOI:10.1080/10426500210664
日期:2002.4.1
Long-chain dialkyl alkylphosphonates were synthesized by radical addition of dialkyl hydrogenphosphonates onto alkenes in presence of di(t-butyl) peroxide. This synthetic route leads to high yields between 94 and 97%. We performed chemical modifications of these phosphonates in order to obtain acidic derivatives. The structure of these compounds was characterized by NMR analyses and mass spectroscopy
Homogeneous additive concentrates and their formation
申请人:ETHYL PETROLEUM ADDITIVES, INC.
公开号:EP0333371A1
公开(公告)日:1989-09-20
A homogeneous concentrate suitable for use as an additive for lubricating oils is formed from a long chain succinimide and a benzotriazole by heating a mixture of these materials in the presence of water or alkoxylated amines or dihydrocarbylphosphites or dihydrocarbyl phosphonates (or mixtures of such materials) and then distilling the volatile component, from the resulting product. When this heating step is conducted in the additional presence of a boronating agent such as boric acid and the volatile component, is removed by distillation, not only is a compatible additive concentrate formed, but the long chain succinimide is boronated in the process.
Preconditioned automatic transmission fluids and their preparation
申请人:ETHYL PETROLEUM ADDITIVES, INC.
公开号:EP0384639A1
公开(公告)日:1990-08-29
Preconditioned automatic transmission fluids are made by using a preblend formed by heating an alkenyl succinimide or succinamide dispersant with a phosphorus ester and water to partially hydrolyze the ester and then mixing the preblend and other additives with a base oil.