Addition reaction of hydroxyl-containing compounds with alkynes or allenes

US6087538A · kind A · utility

Assignee

• BASF SE

Inventors

• Joaquim Henrique Teles · Waldsee, DE
• Norbert Rieber · Mannheim, DE
• Klaus Breuer · Speyer, DE
• Christopher William Rieker · Ludwigshafen, DE
• Dirk Demuth · Schallstadt, DE
• Hartmut Hibst · Schriesheim, DE
• Alfred Hagemeyer · Sunnyvale, US

Key dates

• Filing date: Jun 5, 1998
• Grant date: Jul 11, 2000
• Expiry date: Jun 5, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C41/54
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Compounds of the formula I and II ##STR1## where R.sup.1 is hydrogen or an aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radical or an acyl radical, it being possible for these radicals to carry further substituents which do not react with acetylenes or allenes, and the radicals R, independently of one another, are hydrogen or aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radicals which may be linked to one another with formation of a ring and m is 0 or 1, are prepared by an addition reaction of a compound of the formula III EQU R.sup.1 OH III with an acetylene or allene of the formula IV or V ##STR2## where R.sup.1 and R have the abovementioned meanings, in the gas phase at elevated temperatures in the presence of a heterogeneous, silicate-containing catalyst, by a process in which the catalyst used contains, as an active component, an X-ray amorphous zinc silicate or cadmium silicate containing from 1 to 40% by weight, calculated as oxide, of zinc or cadmium and is obtainable by applying a zinc salt or cadmium salt of an organic acidic compound which is decomposable at below 400.degree. C., to an amorphous silica and forming the catalyst at f…