10527-11-4Relevant articles and documents
Generation and synthetic uses of stable 4-[2-isopropylidene]-phenol carbocation from bisphenol A
Chen, Wei-Fu,Lin, Hsing-Yo,Dai, Shenghong A.
, p. 2341 - 2343 (2004)
(Equation Presented) Stable 4-[2-isopropylidene]-phenol carbocation, IPP cation 1, was generated readily by addition of bisphenol A in concentrated sulfuric acid at ambient temperature, and the cation could be used for facile syntheses of 4-isopropenyl phenol (IPP), IPP dimers, and spiro-bisphenol derivatives.
Oligomeric hydroxy-aryloxy phosphazene based on cyclic chlorophosphazenes
Sirotin,Bilichenko,Brigadnov,Kireev,Suraeva,Borisov
, p. 1903 - 1912 (2013)
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.
Production of spirobiindane (by machine translation)
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Paragraph 0265; 0285; 0286; 0292; 0300; 0312, (2017/12/01)
PROBLEM TO BE SOLVED: To produce 6,6'-dihydroxy-3,3,3',3'-tetramethyl-1,1'-spirobiindanes from commercial raw material with high selectivity.SOLUTION: In a reaction step to produce a compound represented by (formula 1) from a compound represented by (formula 2) in a reactor, while water is removed in the presence of acetone, the spirobiindane compound represented by (formula 1) is produced, wherein R1-R6 and R7-R12 are independently, H, a hydroxyl group, a halogen atom, an alkyl group with C12 or less, or the like.
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.