Global Patent Index - EP 1910256 A2

EP 1910256 A2 20080416 - METHOD FOR THE C-ALKYLATION OF HYDROXYL AROMATIC COMPOUNDS

Title (en)

METHOD FOR THE C-ALKYLATION OF HYDROXYL AROMATIC COMPOUNDS

Title (de)

VERFAHREN FÜR DIE C-ALKYLIERUNG AROMATISCHER HYDROXYLVERBINDUNGEN

Title (fr)

PROCEDE DE C-ALKYLATION DE COMPOSES AROMATIQUES HYDROXYLES.

Publication

EP 1910256 A2 20080416 (FR)

Application

EP 06794281 A 20060803

Priority

  • FR 2006001890 W 20060803
  • FR 0508344 A 20050804

Abstract (en)

[origin: WO2007015015A2] The invention relates to a method for the selective C-alkylation in para position of a hydroxyl group of a hydroxylated aromatic compound. The inventive method for the C-alkylation of a hydroxlated aromatic compound having at least one hydrogen atom in para position in relation to the hydroxyl group is characterised by the fact that the compound is placed in the presence of an acid catalyst of formula (I) and a compound leading to the formation of a carbocation in the presence of the acid catalyst. The acid catalyst corresponds to the following formula H-A-[SO<SUB>2</SUB>-C<SUB>p</SUB>H<SUB>a</SUB>X<SUB>b</SUB>]<SUB>n</SUB> (I) wherein A represents a nitrogen (N) or carbon (C) atom, n is equal to 2 when A is a nitrogen atom, and 3 when A is a carbon atom, X is a halogen atom, p is equal to a number between 1 and 10, b is equal to a number between 3 and 21, and a+b=2p+1.

IPC 8 full level

C07C 39/08 (2006.01)

CPC (source: EP)

B01J 31/0224 (2013.01); B01J 31/0235 (2013.01); B01J 31/0271 (2013.01); C07C 37/14 (2013.01); C07C 37/16 (2013.01); B01J 2231/4205 (2013.01)

C-Set (source: EP)

  1. C07C 37/14 + C07C 39/08
  2. C07C 37/14 + C07C 39/06
  3. C07C 37/16 + C07C 39/08

Citation (search report)

See references of WO 2007015015A2

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

FR 2889519 A1 20070209; FR 2889519 B1 20080711; CN 101203474 A 20080618; EP 1910256 A2 20080416; JP 2009503038 A 20090129; WO 2007015015 A2 20070208; WO 2007015015 A3 20070412

DOCDB simple family (application)

FR 0508344 A 20050804; CN 200680022161 A 20060803; EP 06794281 A 20060803; FR 2006001890 W 20060803; JP 2008524546 A 20060803