2300-15-4Relevant articles and documents
Oligomeric hydroxy-aryloxy phosphazene based on cyclic chlorophosphazenes
Sirotin,Bilichenko,Brigadnov,Kireev,Suraeva,Borisov
, p. 1903 - 1912 (2014/05/06)
Reaction of hexachlorocyclotriphosphazene and a mixture of cyclic chlorophosphazene [NPCl2]n =3-8 with an excess of diphenylolpropane under different conditions affords corresponding oligomeric hydroxy-aryloxy phosphazenes, which were characterized by gas chromatography-mass spectrometry, laser mass spectrometry, 31P and 1H NMR spectroscopy. Side reactions was found with participation of decomposition products of diphenylolpropane. Pleiades Publishing, Ltd., 2013.
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.
Process for the production of 2,2-(4,4'-dihydroxy-diphenyl)propane
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, (2008/06/13)
A process for the production of 2,2-(4,4'-dihydroxydiphenyl)propane (bisphenol A) of high purity of condensation of phenol with acetone in the presence of strong acids, which comprises Preparing an addition product of bisphenol A and phenol and Separating the constituents of this addition product by fractional condensation of the vapours obtained by treating the addition product at high temperature and at reduced pressure for a short time.