88938-12-9

Usage

Uses

Given the provided materials, there are no direct applications listed for Biscresolfluorene. However, it is important to note that due to its harmful properties, efforts are concentrated on reducing its environmental impact rather than utilizing it for specific applications. If there were any uses, they would likely be in the context of research for understanding its effects or developing methods for its mitigation or remediation.

Upstream product

• 95-48-7 ortho-cresol 
• 486-25-9 9-fluorenone 
• 107-96-0 3-mercaptopropionic acid 

Downstream Products

• 156326-34-0 9,9-bis(4-(2-hydroxyethoxy)-3-methylphenyl)fluorene 

Relevant academic research and scientific papers

BISPHENOL COMPOSITION CONTAINING AROMATIC ALCOHOL SULFONATE AND METHOD FOR PRODUCING SAME, POLYCARBONATE RESIN AND METHOD FOR PRODUCING SAME, AND BISPHENOL PRODUCTION METHOD

A bisphenol composition including a specific amount of aromatic alcohol sulfonate, and a simple method of producing it are provided. Also provided is a method of producing a polycarbonate resin in which, by using the bisphenol composition including a specific amount of aromatic alcohol sulfonate, melt polymerization reaction can be efficiently allowed to proceed to produce a polycarbonate resin having an excellent color tone. A bisphenol composition including an aromatic alcohol sulfonate at not less than 0.1 ppb by mass with respect to a bisphenol. A method of producing a bisphenol composition, including reacting a ketone or an aldehyde with an aromatic alcohol in the presence of sulfuric acid to produce a bisphenol composition. A method of producing a polycarbonate resin, including producing a polycarbonate resin using the bisphenol composition. A polycarbonate resin including a specific amount of aromatic alcohol sulfonate.

Preparation method of 9,9-di(4-hydroxy aryl) fluorene type compound

The invention provides a preparation method of a 9,9-di(4-hydroxy aryl) fluorene type compound. The method is characterized in that 9-fluorenone type derivatives and aromatic phenol type compounds areused as raw materials; reaction is performed under the catalysis of active carclazyte, a crude product of the 9,9-di(4-hydroxy aryl) fluorene type compound is obtained; then, after purification, the9,9-di(4-hydroxy aryl) fluorene type compound product is obtained. The preparation method has the beneficial effects that the active carclazyte price is cheap; catalysts and reaction mother liquid canbe repeatedly used for many times; the operation is simple and convenient; the reaction time is short; the temperature controllability is high; the production cost is effectively reduced; the production efficiency is improved; in addition, the discharging of waste acid water and waste slag caused by reaction catalysts is greatly reduced; the environment pollution is reduced; the preparation method can be applicable to green and chemical sustainable development.

(METH)ACRYLIC RESIN COMPOSITION, FILM, POLARIZING PLATE PROTECTIVE FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY DEVICE

There is provided a (meth)acrylic resin composition, containing a (meth)acrylic resin; a compound denoted by General Formula (1) described below; and a specific compound: wherein R1 to R8 each independently represent a hydrogen atom, a halogen atom, a hydroxyl group, or a hydrocarbon group having 1 to 6 carbon atoms, R11 and R12 each independently represent a hydrogen atom, a halogen atom, or a hydrocarbon group having 1 to 12 carbon atoms, m and n each independently represent an integer of 0 to 4, in a case where m and n represent an integer of greater than or equal to 2, a plurality of R11's and R12's may be identical to each other or different from each other, at least two R11's, at least two R12's, or R11 and R12 may form a ring by being linked to each other.

METHOD FOR PRODUCING FLUORENE DERIVATIVE

A method for producing a fluorene derivative by reacting fluorenone with a phenol or a phenoxyalcohol in the presence of an acid catalyst includes: adding an alkali to an obtained reaction liquid containing a fluorene derivative; and concentrating a resultant mixture liquid without removing the alkali thus added and a reaction product of the alkali, thereby separating an unreacted phenol or unreacted phenoxyalcohol.

PROCESS FOR PRODUCING FLUORENE DERIVATIVE

Fluorenone and a phenolic compound (e.g., a 2-C1-4alkylphenol) is subjected to a condensation reaction in coexistence with a thiol compound and a hydrochloric acid aqueous solution to produce a fluorene derivative [e.g., 9,9-bis(C1-4alkylhydroxyphenyl)fluorene]. The proportion (weight ratio) of fluorenone relative to the thiol compound [fluorenone/the thiol compound] is about 1/0.01 to 1/0.5, and the proportion (weight ratio) of the thiol compound relative to hydrochloric acid (HCl) in the hydrochloric acid aqueous solution [the thiol compound/hydrochloric acid] is about 1/0.1 to 1/3. As the thiol compound, a mercaptocarboxylic acid (β-mercaptopropionic acid) may be used. According to the method, a highly purified fluorene derivative excellent in transparency can be obtained inexpensively and simply without using a hydrogen chloride gas having handling difficulty.

Process for the preparation of bishydroxy aromatic compounds

A process for the preparation of bishydroxy aromatic compounds, such as 9,9-bis(4-hydroxyphenyl)fluorene, involving contacting a ketone, such as fluorenone, with phenol or substituted phenol in the presence of a mercaptan cocatalyst and a solid superacid catalyst of Hammett acid strength H0 greater than about -13.0. Solid superacid catalysts include the sulfates, sulfated oxides, sulfated oxyhydroxides, and sulfated oxysilicates of aluminum, tin, and the Group IVA metals, such as zirconium, as well as mixed metal oxides, such as tungsten-zirconium oxides. Isolated yields are high for 9,9-bis(4-hydroxyphenyl)fluorene.