CAS: 4724-47-4; Octadecylphosphonic Acid

相似化合物

5137-70-2 4721-24-8 4724-48-5

上下游产品

°Ctadecyl-phosphonic acid dibutyl ester stearylphosphonic chloride 1-Bromo°Ctadecane O,O'-bis(trimethylsilyl)°Ctadecylphosphonic acid°Ctadecyl-phosphonic acid monomethyl ester

硬脂基溴置于potassium Hydroxide Semihydrate,磷化氢,十六烷基三甲基溴化铵,硝酸体系中,用 水,甲苯 作为反应溶剂,化学反应 8.0H,以20%的收率获得产物磷酸正十八酯
参考文献:胶束/相转移催化红磷和超碱对烷基溴的膦酰化反应合成长链正烷基膦酸
标题:胶束/相转移催化红磷和超碱对烷基溴的膦酰化反应合成长链正烷基膦酸
摘要:基于超碱体系koh / H2O /甲苯/相转移催化剂中烷基溴与红磷的直接膦酰化作用,开发了一种单锅法合成烷基膦酸的方法.十六烷基三甲基溴化铵已成功用作胶束相转移催化剂,超碱性氢氧根阴离子的载体.
DOI:10.1002/ejoc.202100067

专利信息

专利号:WO-2024246574-A1
优先权日:2023-06-02
标题:METHOD OF SYNTHESIS OF COLLOIDAL InSb QUANTUM DOTS
发明人：REISS PETER; KWON YONGJU
权利人:COMMISSARIAT A LENERGIE ATOMATIQUE ET AUX ENERGIES ALTERNATIVES; CENTRE NAT RECH SCIENT; UNIV GRENOBLE ALPES
摘要:The present invention relates to a method of synthesis of colloidal InSb quantum dots (InSb QDs) comprising a premixing step of In and Sb precursors at a temperature of less than 100°C, under stirring.

专利号:US-7465352-B2
优先权日:2004-07-23
标 题:One-pot synthesis of high-quality metal chalcogenide nanocrystals without precursor injection
发明人：CAO YUNWEI CHARLES
权利人:UNIV FLORIDA
摘要:A method of homogeneously forming metal chalcogenide nanocrystals includes the steps combining a metal source, a chalcogenide source, and at least one solvent at a first temperature to form a liquid comprising assembly, and heating the assembly at a sufficient temperature to initiate nucleation to form a plurality of metal chalcogenide nanocrystals. The plurality of metal chalcogenide nanocrystals are then grown without injection of either the metal source or the chalcogenide source at a temperature at least equal to the sufficient temperature, wherein growth proceeds substantially without nucleation to form a plurality of monodisperse metal chalcogenide nanocrystals. An optional nucleation initiator can help control the final size of the monodisperse crystals. Such synthesis, without the need for precursor injection, is suitable for the industrial preparation of high-quality nanocrystals.

专利号:US-8933181-B2
优先权日:2006-10-06
标题:Branched polymers and methods for their synthesis and use
发明人：MOURI HIROSHI; LUO STEVEN; KURASCH JESSICA; ROBERTSON CHRISTOPHER G; WARREN SANDRA
权利人:MOURI HIROSHI; LUO STEVEN; KURASCH JESSICA; ROBERTSON CHRISTOPHER G; WARREN SANDRA; BRIDGESTONE CORP
摘要:Branched polymers including multi-branched polymers, functionalized branched polymers, star-branched polymers, and dendigraft polymers. Methods for the synthesis of branched polymers and method for the use of branched polymers in tire components are also included.

专利号:US-8137457-B2
优先权日:2004-07-23
标题 :One-pot synthesis of high-quality metal chalcogenide nanocrystals without precursor injection
发明人：CAO YUNWEI CHARLES; CHEN OU
权利人:CAO YUNWEI CHARLES; CHEN OU; UNIV FLORIDA
摘要:A method of forming monodisperse metal chalcogenide nanocrystals without precursor injection, comprising the steps of: combining a metal source, a chalcogen oxide or a chalcogen oxide equivalent, and a fluid comprising a reducing agent in a reaction pot at a first temperature to form a liquid comprising assembly; increasing the temperature of the assembly to a sufficient-temperature to initiate nucleation to form a plurality of metal chalcogenide nanocrystals; and growing the plurality of metal chalcogenide nanocrystals without injection of either the metal source or the chalcogen oxide at a temperature equal to or greater than the sufficient-temperature, wherein crystal growth proceeds substantially without nucleation to form a plurality of monodisperse metal chalcogenide nanocrystals. Well controlled monodispersed CdSe nanocrystals of various sizes can be prepared by choice of the metal source and solvent system.

专利号:US-7833506-B2
优先权日:2006-11-21
标题 :Process for the synthesis of nanosize metal-containing nanoparticles and nanoparticle dispersions
发明人：RAUSCHER FRANK; HAVERKAMP VERENA; HENNINGER BJOERN; MLECZKO LESLAW
权利人:BAYER TECHNOLOGY SERVICES GMBH
摘要:The invention relates to a process for producing morphologically uniform and virtually monodisperse metal-containing nanoparticles, characterized in that the separation both in time and space of the nucleation and growth processes is achieved by regulation of the temperature and volume flows, with the reaction and particle formation preferably being initiated and carried out in a suitable microstructured modular reactor system. Modularization of the microreaction plant (micro heat exchanger, residence reactor, micromixer, etc.) allows optimal setting of the respective chemical and process-engineering process parameters and thus the preparation of virtually monodisperse and morphologically uniform nanoparticles.

专利号:US-2025178919-A1
优先权日:2022-01-31
标 题 :Process for the production of nanocrystals of metal chalcohalides
发明人：GIANSANTE CARLO; QUARTA DANILA; TOSO STEFANO; GIANNUZZI ROBERTO; CALIANDRO ROCCO; MOLITERNI ANNA; GIANNINI CINZIA; MANNA LIBERATO; GIGLI GIUSEPPE
权利人:CONSIGLIO NAZIONALE RICERCHE; FONDAZIONE ST ITALIANO TECNOLOGIA; UNIV DEL SALENTO; UNIV CATTOLICA DEL SACRO CUORE
摘要:A process for the synthesis of nanocrystals of metal chalcohalides is disclosed, where M is a metal, E is a chalcogen and X is a halogen, starting from a salt of M. The process includes the following steps: a) a precursor of metal M is mixed with a surfactant in a solvent having a boiling point higher than 180° C.; b) the mixture obtained in previous step a) is heated, in order to dissolve the components, until it becomes clear; c) the solution is heated up under inert atmosphere at the desired temperature; d) chalcogen and halogen precursors in 0 a solvent having a boiling point higher than 180° C. are added through injection, while heating the solution obtained in steps a) to c); e) after the reaction time has elapsed, the product is quenched down to room temperature.