14814-17-6Relevant articles and documents
Synthesis of lithium ω-(m- and p-lithiophenoxy)alkoxides modified with magnesium 2-ethoxyethoxide. Crystal structures of bis[4-(2-hydroxyethoxy)phenyl]mercury and bis[4-(3-hydroxypropoxy)phenyl]mercury
Salteris, Constantinos S.,Kostas, Ioannis D.,Micha-Screttas, Maria,Steele, Barry R.,Heropoulos, George A.,Screttas, Constantinos G.,Terzis, Aris
, p. 63 - 70 (1999)
m- and p-Chlorinated ω-phenoxyalcohols 1, were transformed into the corresponding lithium ω-(m- and p-lithiophenoxy)alkoxides 4, respectively, by successive deprotonation with n-butyllithium and subsequent chlorine-lithium exchange by lithium naphthalene radical anion in THF-methylcyclohexane. Lithium 2-(4-lithiophenoxy)ethoxide (4a′) was also prepared by bromine-lithium exchange of 2-(4-bromophenoxy)ethanol (2a′) with two equivalents of n-butyllithium. The organolithiums were modified with magnesium 2-ethoxyethoxide in order to avoid ortho-metallation of the above-mentioned substituted arenes. Subsequent reaction of these intermediates with the electrophiles carbon dioxide, benzophenone, benzonitrile and 0.5 equivalents of mercuric chloride yielded the expected m- and p-substituted (ω-hydroxyalkoxy)benzenes in yields ranging from 50 to 75%. The crystal structures of the organomercurials 8a′ and 8b′ have been determined and revealed the Hg atom to occupy a crystallographic center of symmetry in a linear C-Hg-C arrangement.
Mechanically Robust, Self-Healable, and Highly Stretchable “Living” Crosslinked Polyurethane Based on a Reversible C?C Bond
Zhang, Ze Ping,Rong, Min Zhi,Zhang, Ming Qiu
, (2018)
Stimuli-responsive polymers built by reversible covalent bonds used to possess unbalanced mechanical properties. Here, a crosslinked polyurethane containing aromatic pinacol as a novel reversible C?C bond provider is synthesized, whose tensile strength an
METHOD FOR PREPARING HYDROXYBENZOPHENONE POLYGLYCOL ETHER (METH)ACRYLATE
-
Paragraph 0061, (2020/08/30)
A method for preparing hydroxybenzophenone polyglycol ether (meth)acrylate comprising the steps of (i) reaction of hydroxybenzophenone with ethylene carbonate to give hydroxybenzophenone monoglycol ether,(ii) ethoxylation of hydroxybenzophenone monoglycol
A novel biocompatible zwitterionic polyurethane with AIE effect for cell imaging in living cells
Xu, Junhuai,Yan, Rui,Wang, Haibo,Du, Zongliang,Gu, Jun,Cheng, Xu,Xiong, Junjie
, p. 6798 - 6804 (2018/02/23)
In this work, a novel and stable zwitterionic polymer (TPE-CB PUs) was prepared to realize a cellular imaging system. TPE was conjugated into the backbone of zwitterionic polyurethane, which could be well dispersed in aqueous solution and emitted strong b
NITRILEOXIDE COMPOUND
-
Paragraph 0670; 0671; 0672, (2018/03/25)
The present invention provides a compound of the formula (I): wherein, R1 is a hydrogen atom or a hydrocarbon group; R2 is —R4—R5; R3 is —R4—R5 or —R4—R6; R
Polymorphic forms of the formulations (by machine translation)
-
Paragraph 0038; 0039; 0040;, (2017/04/07)
The present invention provides formulations, the chemical name (Z)- 2 - [4 - (4 - chloro - 1, 2 - diphenyl - d - 1 - enyl) phenoxy] ethanol polymorphic forms, it has excellent stability, and can be a reproduction of the crystal structure. In addition, the present invention also provides formulations polymorph forms of preparation method. (by machine translation)
Photoreactive oligoethylene glycol polymers - Versatile compounds for surface modification by thin hydrogel films
Buller, Jens,Laschewsky, Andre,Wischerhoff, Erik
, p. 929 - 937 (2013/03/13)
Solid surfaces are modified using photo-crosslinkable copolymers based on oligo(ethylene glycol) methacrylate (OEGMA) bearing 2-(4-benzoylphenoxy)ethyl methacrylate (BPEM) as a photosensitive crosslinking unit. Thin films of about 100 nm are formed by spi
NEW PROCESSES FOR PRODUCING BENZOPHENONE DERIVATIVES
-
Page/Page column 23, (2011/08/08)
There is provided a process for the preparation of a compound of formula (I): wherein X, R1, R2a, R2b, R2c, R2d, R2e, R3a, R3b, R3c, R3d and R3e are as described in the description. Such compounds may, for example, be useful medicament (or intermediates for medicaments).
Photochromic polymer conjugates: The importance of macromolecular architecture in controlling switching speed within a polymer matrix
Ercole, Francesca,Malic, Nino,Harrisson, Simon,Davis, Thomas P.,Evans, Richard A.
experimental part, p. 249 - 261 (2011/10/02)
Naphthopyran-poly(n-butyl acrylate) conjugates with different geometries were assembled using ATRP. First, within a rigid lens matrix, an investigation of the photochromic behavior of various poly(n-butyl acrylate), p(n-BA), homopolymers showed that midplacement of a single dye moiety, made possible using a Y-branching difunctional photochromic initiator, gave superior fade kinetics per chain length of conjugated polymer compared to end-functionalized homopolymers. Furthermore, having the dye pendant from the chain opposed to directly within the chain was also found to be advantageous. Fading kinetics became faster when chain length was increased, except in the case of linear random copolymers made by copolymerization of n-butyl acrylate with a naphthopyran acrylate. A gradient copolymer made with a nonphotochromic difunctional initiator and a naphthopyran methacrylate displayed superior kinetics. Films consisting of ABA triblock copolymers, incorporating the photochromic in the middle of a soft p(n-BA) section, gave slower switching speeds compared to lens samples, with responses that were highly tunable and dependent on the amount of soft section inhabited by the photochromic moiety.
AZIRIDINE-FUNCTIONAL PHOTOACTIVE CROSSLINKING COMPOUNDS
-
Page/Page column 23, (2010/06/20)
A photoactive compound that is the Michael addition reaction product of an aziridine compound and a photoinitiator-functional (meth)acrylate is described. The compound can be used to crosslink (meth)acrylic polymers via a hydrogen abstracting or an alpha-