Process for the sulfonation and/or sulfatization of organic components with SO.sub.3 in an organic reaction medium

US4973686A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Josef Kretschmann · Langenfeld, DE
• Franz-Josef Carduck · Haan, DE
• Willi Wuest · Ratingen, DE
• Hubert Harth · Goldkronach, DE
• Dirk Springer · Haan, DE

Key dates

• Filing date: Sep 2, 1988
• Grant date: Nov 27, 1990
• Expiry date: Sep 2, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C303/24
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to the use of selected carboxylic acid esters which are liquid under reaction conditions and correspond to general formula (I) EQU X--COOR.sup.1 (I) in which R.sup.1 is an alkyl radical unbranched in the .alpha.-position and X is hydrogen or a group corresponding to general formula (II) ##STR1## in which R.sup.2, R.sup.3 and R.sup.4 represent fluorine and/or chlorine and one of these substituents may also be hydrogen or one or two of these substituents may also be lower alkyl, as reaction medium for the sulfonation and/or sulfatization or organic components with SO.sub.3 to light-colored reaction products.