79-97-0

Usage

Uses

Used in Thermosensitive Recording Materials:
2,2-Bis(4-hydroxy-3-methylphenyl)propane is used as a color developer for thermosensitive recording materials. It is utilized in the production of thermal paper, which is commonly used for printing receipts, airline tickets, and other types of documents that require a temporary record. 2,2-Bis(4-hydroxy-3-methylphenyl)propane reacts with the leuco dye in the paper to produce a visible image when heat is applied, making it an essential component in the creation of these types of materials.

Preparation

The preparation of?2,2-Bis(4-hydroxy-3-methylphenyl)propane is as follows:In a full-jacket type 1 L separable flask equipped with a thermometer, a stirrer, and a 100 mL dropping funnel, 26.1 g (0.4 mol) of isopropyl alcohol was added under a nitrogen atmosphere, and then 58.3 g (0.5 mol) of 90% by weight sulfuric acid was slowly added thereto. Thereafter, 54.5 g of toluene, 191.5 g (1.8 mol) of ortho-cresol, and 5.5 g (0.03 mol) of dodecanethiol were added thereto, followed by setting the temperature in the separable flask to 40° C. In the dropping funnel, 42.5 g (0.7 mol) of acetone was placed, and it was slowly fed dropwise to the separable flask for 30 minutes. After completion of the dropwise addition of acetone, the reaction was allowed to proceed at 40° C. for 2 hours. After completion of the reaction, 100.0 g of toluene and 100.0 g of demineralized water were fed, and the temperature was increased to 80° C. After the temperature reached 80° C., the reaction liquid was left to stand to confirm that the precipitates generated during the reaction were dissolved into the organic phase and the aqueous phase. This was followed by extraction of the aqueous phase in the lower layer. Thereafter, saturated sodium hydrogen carbonate solution was added to the obtained organic phase to allow neutralization, followed by confirming that the pH of the aqueous phase in the lower layer, became not less than 9. After extraction of the aqueous phase in the lower layer, demineralized water was added to the obtained organic phase, and the resulting mixture was stirred for 10 minutes. Thereafter, the mixture was left to stand, and the aqueous phase was extracted. Part of the obtained organic phase was removed, and subjected to high-performance liquid chromatography to analyze the amount of bisphenol C produced. As a result, the reaction yield in terms of acetone was found to be 84 mol %.

Flammability and Explosibility

Notclassified

InChI:InChI=1/C19H24O2/c1-12(2)19(5,15-6-8-17(20)13(3)10-15)16-7-9-18(21)14(4)11-16/h6-12,20-21H,1-5H3

Upstream product

• 108-22-5 Isopropenyl acetate 
• 95-48-7 ortho-cresol 
• 463-49-0 1,2-propanediene 
• 67-64-1 acetone 
• 7647-01-0 hydrogenchloride 
• 3233-56-5 o-cresol sulfate 
• 67-56-1 methanol 

Downstream Products

• 124141-44-2 2,2-bis-(4-hydroxy-3-methyl-5-pyrrolidinomethyl-phenyl)-propane 
• 33552-65-7 2,2'-dimethyl-6,6'-bis-piperidin-1-ylmethyl-4,4'-(1-methyl-ethane-1,1-diyl)-bis-phenol 
• 120499-28-7 2,2'-dimethyl-6,6'-bis-morpholinomethyl-4,4'-isopropylidene-di-phenol 
• 583-59-5 2-Methylcyclohexanol 
• 1490-05-7 4-isopropyl-2-methylcyclohexanol 
• 69154-52-5 4,4'-(propane-2,2-diyl)bis(2-bromo-6-methylphenol) 
• 861372-32-9 2-bromo-6-methyl-4-(α,β,β,β',β'-pentabromo-isopropyl)-phenol 
• 62268-99-9 2,2'-dimethyl-6,6'-dinitro-4,4'-isopropylidene-di-phenol 
• 1740-97-2 2-methyl-4-isopropylphenol 
• 95-48-7 ortho-cresol 
• 64-17-5 ethanol 
• 121759-66-8 2,2'-bis-diethylaminomethyl-6,6'-dimethyl-4,4'-isopropylidene-di-phenol 
• 19072-72-1 4,4'-Isopropyliden-bis-<2-methyl-6-tert.-butyl-phenol> 
• 99407-83-7 2,2-bis<4-(4-chlorobutoxy)-3-methylphenyl>propane 

Relevant academic research and scientific papers

BISPHENOL COMPOSITION AND METHOD FOR PRODUCING THE SAME AND METHOD FOR PRODUCING POLYCARBONATE RESIN

PROBLEM TO BE SOLVED: To provide a bisphenol composition that is excellent in methanol dissolution color, melting color difference, and polymerization activity and a method for producing the same. SOLUTION: A bisphenol composition has bisphenol and a bisphenol sulfonic acid. The content of the bisphenol is 95 mass% or more relative to the bisphenol composition. In a method for producing the bisphenol composition, a bisphenol sulfonic acid is produced as a by-product in the process of producing the bisphenol. SELECTED DRAWING: None COPYRIGHT: (C)2021,JPOandINPIT

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.

METHOD FOR PRODUCING BISPHENOL AND METHOD FOR PRODUCING POLYCARBONATE RESIN

PROBLEM TO BE SOLVED: To provide a method for producing bisphenol capable of effectively removing a component deteriorating the color tone of bisphenol and obtaining bisphenol having good color tone and to provide a method for producing a polycarbonate resin using bisphenol having improved color tone. SOLUTION: There is provided a method for producing bisphenol which comprises: a first step in which after mixing a solution containing bisphenol and a first aqueous solution of a carbonate, the resulting mixture is phase-separated into a first organic phase containing bisphenol and a first water phase containing a carbonate to remove the first water phase and obtain the first organic phase; a second step in which after mixing the first organic phase and a second aqueous solution of a carbonate, the resulting mixture is phase-separated into a second organic phase containing bisphenol and a second water phase containing a carbonate to remove the second water phase and obtain the second organic phase; and a third step of crystallizing the second organic phase to obtain bisphenol. SELECTED DRAWING: Figure 3 COPYRIGHT: (C)2020,JPOandINPIT

BISPHENOL PRODUCTION METHOD AND POLYCARBONATE RESIN PRODUCTION METHOD

To provide a bisphenol production method which suppresses an increase in a liquid amount at the time of end of a bisphenol production reaction and side reaction such as decomposition of bisphenol, and has good efficiency.SOLUTION: A bisphenol production method includes a first step of condensing ketone or aldehyde and aromatic alcohol in an acid catalyst to obtain a reaction liquid containing bisphenol, and a second step of mixing the reaction liquid and a first basic aqueous liquid, then phase-separating the mixture into a first organic phase containing bisphenol and a first aqueous phase, and removing the first aqueous phase to obtain the first organic phase, in which in the second step, acid concentration of the first aqueous phase is 0.1 millimoles-sodium hydroxide/g or more and less than 9.2 millimoles-sodium hydroxide/g.SELECTED DRAWING: None

METHOD FOR PRODUCING BISPHENOL AND METHOD FOR PRODUCING POLYCARBONATE RESIN

PROBLEM TO BE SOLVED: To provide a bisphenol which has good color tone, can efficiently progress a polymerization reaction as a raw material of a polycarbonate resin and can produce a polycarbonate resin having good color tone. SOLUTION: There is provided a method for producing a bisphenol which comprises a reaction step of obtaining a bisphenol by the condensation of ketone or aldehyde and an aromatic alcohol in the presence of an acid catalyst and a thiol, a washing step of washing the bisphenol and a crystallization step of crystallizing the bisphenol. The washing step comprises a first step of mixing an organic phase (O1) containing a bisphenol and desalted water followed by phase separation into an organic phase (O2) containing a bisphenol and a water phase (W1) and a second step of mixing the organic phase (O2) containing a bisphenol and desalted water followed by phase separation into an organic phase (O3) containing a bisphenol and a water phase (W2). The water phase (W1) has a pH of 8.5 or more. The water phase (W2) has an electric conductivity of 10 μS/cm or less. SELECTED DRAWING: None COPYRIGHT: (C)2020,JPOandINPIT

2, 2 - Bis (4 - hydroxy methylphenyl -3 -) production of novel propane (by machine translation)

[Problem] to provide a device without requiring a complicated operation of a special material, 2, 2 - bis (4 - hydroxy methylphenyl -3 -) propane for efficiently producing, a new manufacturing method. 2, 2 - Bis 2 - methylphenol [solution] (4 - hydroxy methylphenyl -3 -) propane acetone reaction in the method of manufacturing, a heteropolyacid or a heteropolyacid salt, in the presence of a thiol compound to react with, 2, 2 - bis (4 - hydroxy methylphenyl -3 -) production of propane. [Drawing] no (by machine translation)

Method for producing a bisphenol, and, production of polycarbonate resin (by machine translation)

[Problem] aromatic alcohols and ketone or aldehyde from reaction of bisphenol a, bisphenol to shorten the reaction time, produced bisphenol selectivity is improved, having good color tone bisphenol production can be obtained. [Solution] aromatic alcohols containing organic phase, the aqueous phase is separated from the oil and water containing sulfuric acid, wherein the organic phase in the aromatic alcoholic sulfone acid, aromatic alcoholic sulfone acid (1) to obtain a liquid reaction product containing, a reaction liquid containing the aromatic alcoholic sulfone acid, ketone or aldehyde mixture, the aromatic alcoholic sulfone in the presence of acid, the aromatic alcohol, wherein said step (2) produced from a ketone or aldehyde to bisphenol a, bisphenol a production. [Drawing] no (by machine translation)

2, 2 - Bis (4 - hydroxy methylphenyl -3 -) propane production and production of polycarbonate resin (by machine translation)

2, 2 - Bis (4 - hydroxy methylphenyl -3 -) propane [to] simple and efficient method for stably manufacturing. 2, 2 - Bis (4 - hydroxy methylphenyl -3 -) propane [solution] the method for manufacturing a cresol from acetone, wherein cresol, the acetone, 2, 2 - bis (4 - hydroxy methylphenyl -3 -) propane mono and sulfate were mixed in a reactor comprising the step of generating, the acetone solvent mixture after the mixture previously fed to the reactor with cresol 2, 2 - bis (4 - hydroxy methylphenyl -3 -) production of propane. [Drawing] no (by machine translation)

METHOD FOR PRODUCING BISPHENOL AND METHOD FOR PRODUCING POLYCARBONATE RESIN

PROBLEM TO BE SOLVED: To provide a method for producing bisphenol which is simple, efficient, stable and industrially advantageous. SOLUTION: A method for producing bisphenol includes a step of mixing aromatic alcohol, and keton or aldehyde in the presence of a sulfuric acid and thiol, and subjecting bisphenol to a production reaction, and includes mixing the thiol, and the ketone or the aldehyde, mixing the obtained mixture with the aromatic alcohol, and subjecting the bisphenol to a production reaction. SELECTED DRAWING: None COPYRIGHT: (C)2018,JPOandINPIT

COLOR DEVELOPING COMPOSITION CONTAINING MOLECULAR COMPOUND, AND RECORDING MATERIAL

Provided is a color-developing composition containing a molecular compound which has as a component compound a compound represented by formula (I) [wherein Y represents a C1-C12 hydrocarbon group which is chained or branched and saturated or unsaturated, or a C1-C8 hydrocarbon group which is chained or branched, saturated or unsaturated and has an ether or thioether bond; R1, R2, R3 and R4 each independently represent a C1-C6 alkyl group or C2-C6 alkenyl group; n, p, q and r each represents any integer of 0 to 4; and m represents any integer of 0 to 2]. Also provided is a recording material with a sufficient color-forming sensitivity, superior storage stability, and especially with an extremely little background fogging in a heat resistance test.