The Wacker process, which is widely used to convert monosubstituted alkenes into the
corresponding methyl ketones, is thought to proceed through a PdII/Pd0 catalytic cycle …

Silica sulfuric acid and silica chloride, two silica based solid acids have been used for
various organic functional group transformations either as reagent or as catalyst. All …

With the growing scientific and social awareness of environmental issues, there is an
increasing demand for renewable alkene feedstocks used to make the products we rely on …

Catalytic intramolecular dehydration of cyclic alcohols to cyclic alkenes is very interesting
but still challenging due to low selectivity and difficulty in separation. Herein, we report a …

An efficient solvent-free cyclocondensation route for condensing mercaptoacetic acid with
quinazolinyl-substituted azomethines has been developed using silica chloride as a catalyst …

Hf (OTf) 4 was identified as an excellent catalyst for the low temperature (180° C)
dehydration of 1-hexanol to hexenes and 2-methyl-1-butanol to 2-methylbutenes. Batch …

Tertiary alcohols react under mild conditions in the presence of Amberlyst®-15 (dry)(solid-
supported sulfonic acid) to give predominantly the most stable alkene in very good yield …

The utility of triphosgene and DMAP as mild reagents for chemoselective dehydration of
tertiary alcohols is reported. Performed in dichloromethane at room temperature, this …

Résumé An efficient solvent-free synthesis of various 2, 4, 5-triaryl imidazoles and 1, 2, 4, 5-
tetraaryl imidazoles has been developed using silica chloride as a heterogeneous catalyst …

Stereoselective preparation of trisubstituted olefins can be easily performed from an Z/E-
mixture of enol phosphates by reacting only the E-isomer with a Grignard reagent in the …