7559-72-0Relevant academic research and scientific papers
PROCESS FOR THE MANUFACTURE OF POLYPHENOLS
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Page/Page column 7, (2009/06/27)
An improved process for the manufacture of a polyphenol compound such as bisphenol-A by introducing into a reaction zone a phenolic compound reactant, a carbonyl compound reactant, and a catalyst promoter comprising bismethylthiopropane added to the reaction system in certain specific locations, and reacting the ingredients within the reaction zone in the presence of an acid catalyst.
IMPROVED PROCESS FOR THE MANUFACTURE OF POLYPHENOLS
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Page/Page column 20-21, (2008/06/13)
An improved process for the manufacture of a polyphenol compound such as bisphenol-A by introducing into a reaction zone a phenolic compound reactant, a carbonyl compound reactant, and a catalyst promoter comprising bismethylthiopropane added to the reaction system in certain specific locations, and reacting the ingredients within the reaction zone in the presence of an acid catalyst.
Herbicidal 12-substituted 12H-dibenzo(D,G)(1,3)dioxocin-6-carboxylic acids
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, (2008/06/13)
Dibenzo[d,g][1,3]dioxocin-6-carboxylic acids substituted by methyl or ethyl or a moiety --CH2 CH2 -- at the 12-position and optionally substituted at other positions, such as methyl 4'-chlorospiro(cyclopropane-1,12'(12'H)-dibenzo[d,g][1,3]dioxocin)-6'-carboxylic acid, and their agriculturally acceptable esters, amides, and salts are useful for the control of undesirable vegetation. The 1,1-diarylcyclopropane intermediates required for the spirocyclopropane compounds can be prepared from appropriately substituted 1,1-diarylethene procursors by reaction with phenylthiomethyl lithium reagent.
REACTION OF PHENOL WITH ACETONE IN THE PRESENCE OF ALUMINUM PHENOLATE
Kozlikovskii, Ya. B.,Chernyaev, B. V.
, p. 512 - 514 (2007/10/02)
The condensation of phenol with acetone in the presence of aluminum phenolate leads to a mixture of isomeric bis(hydroxyphenyl)propanes and 2'- and 4'-hydroxy-2,4,4-trimethylflavans, in which 2-(2-hydroxyphenyl)-2-(4-hydroxyphenyl)propane usually predominates.
