scholarly journals Synthesis of peroxy oligomers using 1,2-epoxy-3-tert-butyl peroxypropane

2008 ◽  
Vol 2 (4) ◽  
pp. 271-279
Author(s):  
Michael Bratychak ◽  
◽  
Mikhailo Bratychak ◽  
Olena Astakhova ◽  
Olena Shyshchak ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Bisphenol A ◽  
Spectral Methods ◽  
Phenol Formaldehyde ◽  
Tert Butyl ◽  
Derivatives Of

The possibility of peroxy oligomer synthesis has been studied by three methods: telomerization of diepoxy derivatives of ethylene glycol or Bisphenol A using 1,2-epoxy-3-tert-butyl peroxypropane as telogen, modification of phenol-formaldehyde resins by 1,2-epoxy-3-tert-butyl peroxypropane and polycondensation of phenol containing –O–O– bonds with formaldehyde. The peroxy oligomers obtaining conditions have been established and 7 new oligomers with peroxy groups have been synthesized. The structures of synthesized oligomers have been verified by chemical and spectral methods.

Synthesis of heterocyclic derivatives of 3,6-di-tert-butyl-o-benzoquinone by catalytic dehydrocondensation with ethylene glycol, glycerol, and diethanolamine

2000 ◽  
Vol 36 (8) ◽  
pp. 923-930 ◽  
Author(s):  
T. I. Prokof'eva ◽  
V. B. Vol'eva ◽  
A. I. Prokof'ev ◽  
S. Belostotskaya ◽  
N. L. Komissarov ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Tert Butyl ◽  
Heterocyclic Derivatives ◽  
Derivatives Of

ChemInform Abstract: Synthesis of Heterocyclic Derivatives of 3,6-Di-tert-butyl-o-benzoquinone by Catalytic Dehydrocondensation with Ethylene Glycol, Glycerol, and Diethanolamine.

ChemInform ◽  
2001 ◽  
Vol 32 (19) ◽  
pp. no-no
Author(s):  
T. I. Prokof'eva ◽  
V. B. Vol'eva ◽  
A. I. Prokof'ev ◽  
S. Belostotskaya ◽  
N. L. Komissarov ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Tert Butyl ◽  
Heterocyclic Derivatives ◽  
Derivatives Of

scholarly journals Aqueous phenol and ethylene glycol solutions in electrohydrodynamic liquid bridging

2011 ◽  
Vol 9 (3) ◽  
pp. 391-403 ◽  
Author(s):  
Mathias Eisenhut ◽  
Xinghua Guo ◽  
Astrid Paulitsch-Fuchs ◽  
Elmar Fuchs
Keyword(s):  
Mass Transport ◽  
Ethylene Glycol ◽  
Bisphenol A ◽  
Anodic Oxidation ◽  
High Voltage ◽  
Electrochemical Behavior ◽  
Pure Water ◽  
Passivation Layer ◽  
Mass Transfers ◽  
Electrophoretic Transport

AbstractThe formation of aqueous bridges containing phenol and ethylene glycol as well as bisphenol-A, hydrochinone and p-cresol under the application of high voltage DC (“liquid bridges”) is reported. Detailed studies were made for phenol and glycol with concentrations from 0.005 to 0.531 mol L−1. Conductivity as well as substance and mass transfers through these aqueous bridges are discussed and compared with pure water bridges. Previously suggested bidirectional mass transport is confirmed for the substances tested. Anodic oxidation happens more efficiently when phenol or glycol are transported from the cathode to the anode since in this case the formation of a passivation layer or electrode poisoning are retarded by the electrohydrodynamic (EHD) flow. The conductivity in the cathode beaker decreases in all experiments due to electrophoretic transport of naturally dissolved carbonate and bicarbonate to the anode. The observed electrochemical behavior is shortly discussed and compared to known mechanisms.

Anion complexation by amido derivatives of p-tert-butyl calix[4]arene

2007 ◽  
Vol 60 (1-2) ◽  
pp. 193-196 ◽  
Author(s):  
Abdelwaheb Hamdi ◽  
Rym Abidi ◽  
Jacques Vicens
Keyword(s):  
Tert Butyl ◽  
Anion Complexation ◽  
Derivatives Of

Synthesis of phosphorus derivatives of 2,6-Di-tert-butyl-4-methylphenol

2006 ◽  
Vol 76 (11) ◽  
pp. 1753-1756 ◽  
Author(s):  
A. A. Prishchenko ◽  
M. V. Livantsov ◽  
O. P. Novikova ◽  
L. I. Livantsova ◽  
D. B. Shpakovskii ◽  
...  
Keyword(s):  
Tert Butyl ◽  
Derivatives Of

Thermochemical properties of tert-butyl and cumyl derivatives of peroxide compounds

2013 ◽  
Vol 87 (8) ◽  
pp. 1253-1258
Author(s):  
Yu. P. Pavlovskii ◽  
N. S. Kachurina ◽  
S. I. Gerasimchuk ◽  
Yu. Ya. Van-Chin-Syan
Keyword(s):  
Thermochemical Properties ◽  
Tert Butyl ◽  
Derivatives Of

Preparation of mesoporous carbon derived from mixtures of phenol-formaldehyde resin and ethylene glycol

2008 ◽  
Vol 62 (21-22) ◽  
pp. 3716-3718 ◽  
Author(s):  
Shunjian Xu ◽  
Guanjun Qiao ◽  
Hongjie Wang ◽  
Dichen Li ◽  
Tianjian Lu
Keyword(s):  
Ethylene Glycol ◽  
Mesoporous Carbon ◽  
Phenol Formaldehyde ◽  
Phenol Formaldehyde Resin ◽  
Formaldehyde Resin

Bis(ether) derivatives of tetrakis(2-hydroxyphenyl)ethene — Direct synthesis of (E)- and (Z)-bis(2-hydroxyphenyl)-bis(2-methoxyphenyl)ethene via the McMurry olefination reaction

2006 ◽  
Vol 84 (10) ◽  
pp. 1250-1253 ◽  
Author(s):  
Mee-Kyung Chung ◽  
Paul Fancy ◽  
Jeffrey M Stryker
Keyword(s):  
Supramolecular Chemistry ◽  
Direct Synthesis ◽  
Protecting Groups ◽  
Tert Butyl ◽  
Orthogonal Protection ◽  
Protection Strategies ◽  
Titanium Trichloride ◽  
Sterically Hindered ◽  
Derivatives Of

The direct synthesis of sterically hindered, partially etherified derivatives of tetrakis(2-hydroxyphenyl)ethene is reported by using the McMurry reductive olefination reaction on a range of differentially substituted 2,2′-dialkoxy benzophenone substrates. Three orthogonal protection strategies are demonstrated, incorporating β-silylethyl, 3-butenyl, and tert-butyl protecting groups, respectively, into the starting benzophenones. The latter proved most efficient, with both the McMurry coupling and deprotection steps occurring concomitantly under the McMurry conditions to directly yield the desired bis(2-hydroxyphenyl)-bis(2-methoxyphenyl)ethene as a 1:1 mixture of E- and Z-diastereoisomers.Key words: preorganized polyaryloxide ligands, McMurry olefination, titanium trichloride, supramolecular chemistry, tetrakis(2-hydroxyphenyl)ethene, 2,2′-disubstituted benzophenone.

Sign in / Sign up

Export Citation Format

Share Document