The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 2015
Filed:
Oct. 08, 2012
Sabic Basic Industries Corporation, Riyadh, SA;
Syed Azhar Hashmi, Riyadh, SA;
Flaiyh Al-Anazi, Riyadh, SA;
SAUDI BASIC INDUSTRIES CORPORATION, Riyadh, SA;
Abstract
The invention relates to a process for preparing a compound represented by the formula 1 which compound may optionally be further mono- or di- substituted with halogen atoms, alkyl groups having 1 to 4 C— atoms and/or alkoxy groups having 1 to 4 C— atoms, wherein R is methyl or ethyl group, comprising the step of: contacting a corresponding compound represented by the formula 2 which compound is not further substituted or further mono- or di- substituted in corresponding positions with halogen atoms, alkyl groups having 1 to 4 C— atoms and/or alkoxy groups having a to 4 C-atoms, with an alkylating agent, wherein the alkylating agent is a compound of the formula (RO)SOor RX, wherein R has the above meaning and X is halogen, in the presence of a bis-quaternary ammonium salt or a polymeric quaternary ammonium salt, in a two-phase system of an aqueous solution of a base and an organic solvent.