6073-09-2

Basic information

• Product Name: Phenol, 4-[1-[4-(acetyloxy)phenyl]-1-methylethyl]-
• Synonyms: p,p'-Isopropylidendiphenol-monoacetat;monoacetyl bisphenol A
• CAS NO: 6073-09-2
• Molecular Formula: C17H18O3
• Molecular Weight: 270.328
• Mol File: 6073-09-2.mol

Chemical Properties

• CAS DataBase Reference: Phenol, 4-[1-[4-(acetyloxy)phenyl]-1-methylethyl]-(CAS DataBase Reference)
• NIST Chemistry Reference: Phenol, 4-[1-[4-(acetyloxy)phenyl]-1-methylethyl]-(6073-09-2)
• EPA Substance Registry System: Phenol, 4-[1-[4-(acetyloxy)phenyl]-1-methylethyl]-(6073-09-2)

Safety Data

• Hazardous Substances Data: 6073-09-2(Hazardous Substances Data)

Upstream product

• 80-05-7 BPA 
• 616-38-6 carbonic acid dimethyl ester 
• 108-24-7 acetic anhydride 

Relevant articles and documents

SALT, ACID GENERATOR, RESIST COMPOSITION, AND METHOD FOR PRODUCING RESIST PATTERN

PROBLEM TO BE SOLVED: To provide a salt capable of producing a resist pattern having good line edge roughness (LER), an acid generator, and a resist composition containing the acid generator. SOLUTION: The salt represented by formula (I), the acid generat

Study on the transesterification and mechanism of bisphenol A and dimethyl carbonate catalyzed by organotin oxide

(CF3C6H4)2SnO, (CH3C6H4)2SnO and Ph2SnO were successfully synthesized for the transesterification of DMC with BPA. The products of mono-methylcarbonate-ended-BPA (MmC(1)) and two-methylcarbonate-ended-BPA (DmC(1)) were selectively synthesizedthem. The catalysts were characterized by FT-IR, TG and XPS. When Ph2SnO was used as the catalyst at 170?°C, the BPA conversion reached to 28.60% and the transesterification selectivity reached to 98.35%. As for (CF3C6H4)2SnO, BPA conversion and transesterification selectivity declined to 12.48% and 64.74%, respectively. The BPA conversion increased to 42.83%, but the transesterification selectivity declined to 44.55%(CF3C6H4)2SnO. Notability, the higher transesterification selectivity of Ph2SnO was due to its lowest electron binding energy of Sn4+. More importantly, the DMC adsorption, activation and decomposition process(CF3C6H4)2SnO, (CH3C6H4)2SnO and Ph2SnO were characterized by TG–MS and in situ DRIFT techniques, which provided more information about the mechanism of transesterification and methylation.

Lithium doped TiO2 as catalysts for the transesterification of bisphenol-A with dimethyl carbonate

Lithium doped TiO2 were prepared by simple impregnation, which was used as heterogeneous catalysts for the transesterification of DMC with BPA. The characterized results of FTIR, XRD, XPS, SEM, TEM and temperature programmed desorption of CO2 (CO2-TPD) showed that the structure and performance of the catalysts were obviously influenced by the doping amount of Li+ and calcining temperature. The optimum catalytic activity was obtained when the molar ratio of Ti/Li reached 6 and the calcination temperature came up to 400 ℃ which was due to Li+ reaction with TiO2 to form surface Ti-O-Li at 400 ℃ (Ti/Li-6-400). When the transesterification of DMC with BPA was carried out at 160–180 ℃ over Ti/Li-6-400, BPA conversion reached 46.67%, and the yields of one-methylcarbonate-ended-BPA (MmC(1)) and two-methylcarbonate-ended-BPA (DmC(1)) achieved 36.36% and 5.97%, respectively, and only 9.3% methylation selectivity was detected. In addition, the possible transesterification mechanism was provided.

Promotion of organotin modified SBA-15 in the selective carboxylation of BPA with DMC

Two-methylcarbonate-ended-BPA (DmC(1)) was selectively synthesized from dimethyl carbonate (DMC) and bisphenol A (BPA) over organotin modified SBA-15. Organotin modified samples were characterized by XRD, FT-IR, BET and TG, and the relations between catalytic performance and catalyst properties were discussed. When heterogeneous SBA-15(CH2)3SnOC4H 9 was used as catalyst, DmC(1) achieved better yield and higher selectivity than that obtained over homogeneous (C4H 9)2SnO. The confined region effect of SBA-15(CH 2)3SnOC4H9 was the main reason to promote the reaction between one-methylcarbonate-ended-BPA (MmC(1)) and DMC.

Mapping the substrate selectivity and enantioselectivity of esterases from thermophiles

To identify potential applications of nineteen esterases from thermophiles, we mapped their substrate selectivity and enantioselectivity using a library of 50 esters. We measured the selectivities colorimetrically using Quick E, which uses pH indicators to detect hydrolysis and a chromogenic reference compound as an internal control. The substrate selectivity mapping revealed one esterase, E018b, with a strong preference for acetyl esters (14- to 25-fold over hexanoate). The enantioselectivity mapping revealed a number of cases of high enantioselectivity. Thirteen of the 19 esterases showed moderate or better enantioselectivity (>19) toward 1-phenethyl butyrate favoring the (R)-enantiomer and two esterases (E008, E013) showed moderate or better enantioselectivity (>20) toward methyl 2-chloropropionate favoring the (S)-enantiomer. Three esterases (E001, E004, E005) showed high (>46) enantioselectivity toward menthyl acetate favoring the (R)-enantiomer. This rapid mapping of the selectivity simplifies the characterization of new enzymes.

Trisphenol process

New trisphenols and their preparation by reacting the diacyl compound of dimeric p-isopropenylphenol or of a polycarbonate with a phenol in the presence of a strong acid catalyst at temperatures between -20° and 30° C.