๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Oxidation of alkynes into conjugated acetylenic ketones with tert-butyl hydroperoxide catalyzed by chromiumVI oxide

โœ Scribed by Jacques Muzart; Olivier Piva

Publisher
Elsevier Science
Year
1988
Tongue
French
Weight
241 KB
Volume
29
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

โœฆ Synopsis

Using LBuOOH with catalytic amounts of CrOg and TsOH, regioselective a-oxidation of alkynes to conjugated ynones was observed at room temperature with yields superior to those of stoichiometric chromium procedures. Yields were slighty decreased in the absence of p.toluenesulfonic acid.

Chromium"' oxide-pyridine complex (Sarett's reagent) remains the most reliable reagent for direct oxidation of alkynes into conjugated acetylenic ketones (l-3) but an excess up to 22 equiv. of Cr"' '

๐Ÿ“œ SIMILAR VOLUMES

An Unprecedented Highly Efficient Solven
An Unprecedented Highly Efficient Solvent-Free Oxidation of Alkynes to ฮฑ,ฮฒ-Acetylenic Ketones with tert-Butyl Hydroperoxide Catalyzed by Water-Soluble Copper Complex.
โœ Abdelaziz Nait Ajjou; Gabriel Ferguson ๐Ÿ“‚ Article ๐Ÿ“… 2006 ๐Ÿ› John Wiley and Sons โš– 22 KB ๐Ÿ‘ 1 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.