Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS. /Phenol, molten; Phenol, solid; Phenol solution...
摘要: PURPOSE: To obtain a modified phenol novolac resin having excellent mechanical strengths and a low dielectric constant by effecting the addition reaction of a phenol novolac resin with the double bonds of a polybutadiene in the presence of an acid catalyst and to obtain an epoxy resin....
Intramolecular nucleophilic addition of phenolate to unactivated double and triple bonds. Relative reactivity, regiospecificity, stereochemistry, and mechanismring closure reactionsThe intramolecular nucleophilic addition of phenolate oxygen to the unactivated triple bond of a series of terminal acetylenes (11...
Amyes, T.L., A.J. Kirby (1988) " Intramolecular Nucleophilic Addition of Phenolate Oxygen to Double Bonds Activated by Carboxyl and Carboxylate Groups. Relative Reactivity, Stereochemistry, and Mechanism. " J. Am. Chem. Soc. 110:6505-6514....
(c) compounds carrying at least 2 (meth)acrylic or allyl double bonds, the mixture, after being transformed to the water-dilutable salt by partial neutralization of the basic groups with inorganic and/or organic acids and, optionally with partial elimination of the organic solvent, being dilutab...
Indeed, the present results prove that the combination of C3N4 and PMoV2 converts benzene to phenol with a high phenol yield in a low-temperature liquid-phase aerobic system without any reductant. A dual- catalysis mechanism is proposed for understanding the highly efficient process. Results The...
Knitting is the ability of an adhesive to form strings as the adhered surfaces are separated. An adhesive which has good knitting will form uniform strings uniformly between the surfaces. Fair knitting implies some gaps are left without strings and/or the strings are not uniform. Poor knitting ...
Introduction Photoredox catalysis has demonstrated its strong reducing power to cleave unactivated chemical bonds via photoinduced electron transfer1,2,3,4,5. Among the various photocatalysis-enabled methods of activating inert bonds, the direct selective C–F activation6,7,8,9,10,11of trifluoromethyl...
The present invention further provides the use of the phenolic resins of the invention. The phenolic resins of the invention are generally useful wherever conventional phenolic-resin systems, i.e. phenolic resins produced without use of the rubber having aromatic units, are subject to restrictions in...
Preference is given to using the citronellal to be cyclized in the form of a mixture with the chosen carboxylic anhydride, aldehyde, activated ketone and/or vinyl ether without the further addition of solvents. When using a solvent, the total amount of solvent is advantageously chosen so that ...