CAS: 20434-05-3; Bis(4-Methoxyphenyl)Phosphinic Acid

上下游产品

bis(4-methoxyphenyl)phosphine oxide N,N-diethylphosphoramidous dichloride 4-methoxyphenyl magnesium bromide 1-bromo-4-methoxy-benzene1-(2-bromophenyl)ethenyl di(4-methoxyphenyl)phosphinate N-acetyl-O-(bis-p-methoxyphenylphosphinyl)hydroxylamine 2,2,4,4,6,6-hexakis(4-methoxyphenoxy)cyclotriphosphazene

4-溴苯甲醚置于双氧水,碘,Magnesium,Sodium Hydroxide体系中,用 四氢呋喃,水 用作溶剂,化学反应 11.33H,反应生成双(4-甲氧基苯基)次膦酸
参考文献:通过电化学启用的钴催化的对映选择性 C-H 环化合成 P-立体异构环次膦酰胺
标题:通过电化学启用的钴催化的对映选择性 C-H 环化合成 P-立体异构环次膦酰胺
摘要:开发用于合成 P-手性膦衍生物的电化学工艺方法提出了相当大的挑战.在这里,我们提出了一种电力驱动的钴催化的芳基次膦酰胺和炔烃的对映选择性 C-H 环化反应,它提供了快速获得 P-手性环状氧化磷的非常好产率和出色的对映选择性(48-99% 产率,94->99%) Ee).与之前使用氧化剂的工作相比,该反应与水性溶剂相容,并且在更短的反应时间内有效地进行.该工艺结合使用现成的手性水杨基恶唑啉和四水乙酸钴作为廉价催化剂.值得注意的是,动力学拆分过程也是通过s实现的因子高达 347.8.钴电催化的实验,动力学和计算研究提供了对催化剂工作模式的见解.
Doi:10.1039/d3Gc00455D

专利信息

专利号:US-9006347-B2
优先权日:2011-09-08
标 题 :Method of synthesising polycarbonates in the presence of a bimetallic catalyst and a chain transfer agent
发明人：WILLIAMS CHARLOTTE K; KEMBER MICHAEL; BUCHARD ANTOINE; JUTZ FABIAN
权利人:IMP INNOVATIONS LTD
摘要:The invention provides a process for the synthesis of a polycarbonate, the process comprising the step of reacting carbon dioxide with at least one epoxide in the presence of a catalyst of formula (I) and a chain transfer agent. The invention also provides a polymerization system for the copolymerization of carbon dioxide and at least one epoxide comprising a catalyst of formula (I) and a chain transfer agent, polycarbonates produced by the inventive process, a block copolymer comprising a polycarbonate produced by the inventive process, and a method of producing the block copolymer. The invention also relates to novel catalysts of formula (III).

专利号:US-9493494-B2
优先权日:2014-05-30
标题:Phosphinine oxide derivative and preparation method thereof
发明人：LEE PHIL HO; PARK YOUNG CHUL; JEON IN CHEOL; SEO JUNG MIN; SEO BO RAM
权利人:KNU INDUSTRY COOPERATION FOUND
摘要:Provided are a novel phosphinine oxide derivative and a preparation method thereof, and more specifically, the phosphinine oxide derivative includes an oxaphosphinine oxide derivative and an azaphosphinine oxide derivative. n The phosphinine oxide derivative according to the present invention may have a pharmacological activity and a physiological activity, and may be used as a basic framework of a natural product and may be used for development of new drug and synthesis of various medical supplies. n In addition, according to the preparation method of the phosphinine oxide derivative according to the present invention, various phosphinine oxide derivatives with a high yield may be prepared by a simple synthesis process using an intramolecular annulation between a phosphinic derivative and an alkyne derivative in the presence of a rhodium (Rh) catalyst or a ruthenium (Ru) catalyst and an oxidant.

专利号:CN-108707225-A
优先权日:2011-09-08
标 题 :Process for the synthesis of polycarbonates in the presence of bimetallic catalysts and chain transfer agents

专利号:CN-109369716-B
优先权日:2018-09-14
标 题:A kind of aryl phosphine oxide compound and its synthesis method and application