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1. IN140/DELNP/2003 - "1,1-BIS(4-HYDROXYPHENYL)-3-ALKYLCYCLOHEXANES, METHOD FOR THE PREPARATION AND POLYCARBONATES PREPARED THEREFROM

Office
India
Application Number 140/DELNP/2003
Application Date 07.02.2003
Publication Number 140/DELNP/2003
Publication Date 02.10.2009
Publication Kind A
IPC
C07C 39/17
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
39Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring
12polycyclic with no unsaturation outside the aromatic rings
17containing other rings in addition to the six-membered aromatic rings
Applicants GENERAL ELECTRIC COMPANY
Inventors AVADHANI CHILUKURI VER
WADGAONKAR PRAKASH PURUSHOTTA
SIVARAM SWAMINATHAN (NMN)
Priority Data 09652185 31.08.2000 US
Title
(EN) "1,1-BIS(4-HYDROXYPHENYL)-3-ALKYLCYCLOHEXANES, METHOD FOR THE PREPARATION AND POLYCARBONATES PREPARED THEREFROM
Abstract
(EN) 1,1-Bis(4-hydroxyphenyl)-3-alkylcyclohexanes, as illustrated by 1,1-bis(4-hydroxyphenyl)-3-pentadecylcyclohexane, are prepared by hydrogenating a composition comprising 3-alkylphenols to the corresponding cyclohexanol, oxidizing the cyclohexanol to a cyclohexanone and contacting the cyclohexanone with phenol in the presence of an acidic catalyst. The preferred 3-alkylphenols are those derived from cashew nut shell liquid. The products can be used to prepare polycarbonates.