Patent
Phenol transalkylation process
Lloyd E. Goddard
- 13 Apr 1973
10
TL;DR: In this article, the transalkylation of phenols having an unsubstituted ortho position is performed by mixing them with an ortho-alpha-branched alkyl group and an aluminum phenoxide catalyst and heating the mixture to 100°-350°C.
read more
Abstract: Phenols having an unsubstituted ortho position are transalkylated in the ortho position by mixing them with an ortho-alpha-branched alkylphenol (e.g., 2,6-di-sec-butylphenol) and an aluminum phenoxide catalyst and heating the mixture to 100°-350°C., preferably in a closed system and in the presence of olefin corresponding in structure to the ortho-alpha-branched alkyl group.This application is continuation-in-part of application Ser. No. 20,115, filed Mar. 16, 1970.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Patent
2,4-dialkyl-6-sec- alkylphenols
Dubs Paul,Pitteloud Rita +1 more
- 06 Jul 1993
TL;DR: In this paper, the authors claim the product of reacting a phenol of formula (II) with an olefin of formula CH2=CH-R3 (III) with the proviso that the gp contains at least 4C atoms.
7
Patent
Heterogeneous catalyst process
Dixie Ely Goins,Silas W. Holmes,Edward A. Burt +2 more
- 27 May 1986
TL;DR: In this article, a process using heterogeneous resin-bonded aluminum phenoxide catalyst to alkylate phenols, the catalyst per se, and a process for making the catalyst is described.
6
Patent
Process for preparation of 4-isopropylphenol
Dale E. Van Sickle
- 02 Dec 1983
TL;DR: The process for preparing 4-isopropylphenol (4-IPP) from 2-IPP is described in this paper, where the mixture is distilled into 4-IPP and 2IPP using a molecular sieve and trifluoromethane sulfonic acid.
4
Patent
Substantially straight chain alkylphenols
Thomas F. Buckley
- 19 May 1994
TL;DR: In this paper, liquid alkylphenyl poly(oxypropylene) aminocarbamates which do not form a wax when cooled to -40°C in a 50 weight percent solution with toluene, having at least one basic nitrogen and an average molecular weight of about 600 to 6,000.
4
Patent
Process for rearrangement of alkyl groups on aromatic amines
John C Wollensak,Kryn G. Ihrman,Chester P. Jarema +2 more
- 13 Apr 1981
TL;DR: In this paper, N-methyl aromatic amines are redistributed to ring positions by heating in contact with an aluminum anilide catalyst and a nickel, cobalt, molybdenum or titanium-containing cocatalyst.
4