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.
METHOD FOR PREPARING HYDROXYBENZOPHENONE POLYGLYCOL ETHER (METH)ACRYLATE
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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
NITRILEOXIDE COMPOUND
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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