2-Amino-1-(1,2-dioxolan-4-yl)ethanol compounds, their preparation and use

US4570007A · kind A · utility

Assignee

• Shering Corporation · DE

Inventors

• Ulrich Niedballa · Berlin, DE
• Heinz Gries · Berlin, DE

Key dates

• Filing date: Apr 11, 1985
• Grant date: Feb 11, 1986
• Expiry date: Apr 11, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D317/34
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

2-Amino-1-(1,3-dioxolan-4-yl)ethanol compounds of formula (I) ##STR1## wherein R.sup.1 and R.sup.2 are identical or different and can be hydrogen or a lower alkyl group of 1-4 carbon atoms; or when R.sup.2 is an alkyl group of 1-4 carbon atoms, R.sup.1 can also be an alkoxy group of 1-4 carbon atoms; or R.sup.1 and R.sup.2 combined form an alkylene residue of 5 or 6 carbon atoms, are especially suited as intermediates in the production of opacifying compounds useful in X-ray contrast media.