Process for preparing bisphenols
AssigneeGeneral Electric Company
InventorsGurram Kishan, Ramesh Krishnamurti, Kapila Debjani, Arakali Srinivasarao, Jan-Pleun Lens
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Abstract
A process for preparing aromatic bisphenols, wherein the method comprises reacting an aromatic hydroxy compound with an alkylating agent having a functionality of two in the presence of a catalyst system. The catalyst system used for the process is selected from the group consisting of a heteropolyacid compound, a clay, a functionalized metal oxide catalyst and combinations of the foregoing.
Claims39
A process for preparing aromatic bisphenols, the process comprising:
- reacting an aromatic hydroxy compound with an alkylating agent having a functionality of two in the presence of a catalyst system, wherein the catalyst system is selected from the group consisting of a heteropolyacid compound, a clay, and a functionalized metal oxide catalyst, and wherein the alkylating agent having the functionality of two comprises a carbonyl compound of formula (I):
- wherein R1 to R4 independently at each occurrence represent a hydrogen or an aliphatic radical, and “a” and “b” are integers independently having values from 0 to 3.
A process for preparing 1,1-bis(3-methyl-4-hyxdroxyphenyl)cyclohexane, wherein the method comprises reacting cyclohexanone with ortho-cresol in the presence of a catalyst system, wherein the catalyst system is selected from the group consisting of a heteropolyacid compound, a clay, and a functionalized metal oxide catalyst.
A process for preparing aromatic bisphenols, the process comprising:
- reacting an aromatic hydroxy compound with an alkylating agent having a functionality of two in the presence of a catalyst system, wherein the catalyst system comprises a functionalized metal oxide catalyst;
- and wherein the alkylating agent having the functionality of two comprises at least one functional group selected from the group consisting of a cyclopropyl ring, a cyclobutyl ring, an ethylenic group, an aliphatic hydroxy group, and a cycloaliphatic hydroxy group.
A process for preparing 1,3- and 2,8-bis(4-hydroxyphenyl)menthane, wherein the method comprises reacting limonene with phenol in the presence of a catalyst system, wherein the catalyst system comprises a functionalized metal oxide catalyst.
Dependencies are inferred from the claim text.