Cycloaddition of Zirconacyclopentadiene with 2-Bromoacrylate, 2-Bromoacrylaldehyde, and 3-Bromofuran-2,5-dione in the Presence of CuCl: A New Pathway for the Formation of Benzene Derivatives and Isobenzofuran-1,3-dione
摘要:
Reaction of zirconacyclopentadienes with 2-bromoalkenes in the presence of CuCl afforded multisubstituted benzene derivatives. The reactions of 2-bromoacrylate and 2-bromo-3-phenylacrylaldehyde afforded penta- and hexasubstituted benzenes in good yields. The reaction of 3-bromofuran-2,5-dione with zirconacyclopentadienes gave isobenzofuran-1,3-diones in good yields.
分子内链转移至聚合物和随后的叔自由基的传播引起丙烯酸单体的自由基聚合中的大量支化。文献研究表明,在受控的自由基聚合条件下,支化程度显着降低。有两种相互竞争的理论来解释这种效果。一方面,减少支化的原因是由于减少了咬合事件的数量,而在另一种已专门应用于原子转移自由基聚合(ATRP)的原因中,其原因是由于叔自由基被碳原子所捕获。快速停用步骤。在本文中,我们表明第三级自由基的捕获不是分支分数降低的原因。13 C NMR并通过能力链由聚(丙烯酸丁酯-延伸共丁基-2- bromoacrylate)通过ATRP共聚物。这些结果通过量子力学计算得到补充。
[EN] SUBSTITUTED PYRAZOLYL-BASED CARBOXAMIDE AND UREA DERIVATIVES BEARING A PHENYL MOIETY SUBSTITUTED WITH AN O-CONTAINING GROUP AS VANILLOID RECEPTOR LIGANDS<br/>[FR] DÉRIVÉS DE CARBOXAMIDE ET D'URÉE À BASE DE PYRAZOLYLE SUBSTITUÉ PORTANT UN FRAGMENT PHÉNYLE REMPLACÉ PAR UN GROUPE CONTENANT O COMME LIGANDS DES RÉCEPTEURS VANILLOÏDES
申请人:GRUENENTHAL GMBH
公开号:WO2013068461A1
公开(公告)日:2013-05-16
The invention relates to substituted pyrazolyl-based carboxamide and urea derivatives of formula (Q) as vanilloid receptor ligands, to pharmaceutical compositions containing these compounds and also to these compounds for use in the treatment and/or prophylaxis of pain and further diseases and/or disorders.
A process for preparing 2-pyridinyloxyphenoxy-lower-alkanoates
申请人:Imperial Chemical Industries PLC
公开号:US04414391A1
公开(公告)日:1983-11-08
This invention relates to a process for preparing pyridyloxyphenoxypropanecarboxylic acids and their derivatives, and to intermediates useful in the process.
这项发明涉及一种制备吡啶氧基苯氧基丙烷羧酸及其衍生物的过程,以及在该过程中有用的中间体。
Substituted Phenylureas and Phenylamides as Vanilloid Receptor Ligands
申请人:FRANK Robert
公开号:US20120258946A1
公开(公告)日:2012-10-11
Substituted phenylureas and phenylamides, processes for their preparation, pharmaceutical compositions containing these compounds, and the use of these compounds for preparing pharmaceutical compositions.
Process for preparing pyridine derivatives and intermediates useful in the process
申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0040478A1
公开(公告)日:1981-11-25
The invention provides a process for preparing 2-[4-(3-or 5-fluoromethylpyridyl-2-oxy)phenoxy] propionic acids and their derivatives by reducing 2- [4-(3- or 5-fluoromethylpyridyl-2-oxy)phenoxy] acrylic acids and their derivatives. It also provides the acrylic acids and their derivatives themselves.
The invention provides active energy ray curable compositions which exhibit good curability with active energy rays and which have a low viscosity to attain excellent application properties when applied as materials such as adhesives or coatings onto substrates and can give highly flexible cured products upon irradiation with active energy rays. An active energy ray curable composition includes a (meth) acrylic triblock copolymer (A) including a (meth) acrylic polymer block (s) (aA) having an active energy ray curable group containing a partial structure represented by the following general formula (1), and a (meth)acrylic polymer block(s) (bA) having no active energy ray curable groups, and a (meth) acrylic diblock copolymer (B) including a (meth) acrylic polymer block (aB) having an active energy ray curable group containing a partial structure represented by the following general formula (1), and a (meth)acrylic polymer block (bB) having no active energy ray curable groups, the composition having a ratio of Mn (bB)/Mn (bA) in the range of 0.2 to 2.0 wherein Mn (bB) is the number average molecular weight of the (meth)acrylic polymer block (bB) present in the (meth)acrylic diblock copolymer (B), and Mn (bA) is the number average molecular weight of the (meth) acrylic polymer block (bA) present in the (meth)acrylic triblock copolymer (A).
(In the formula, R1 is a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms.)