Method of performing coupling reactions

Abstract

A method of preparing an amalgamated transition metal layered double hydroxide (LDH)@Y-zeolite hybrid catalyst is provided. The method includes combining a transition metal with aluminum nitrate and precipitating using an alkali under ultrasound irradiation and an inert atmosphere to form a transition metal-containing LDH catalyst. A Y-zeolite is pretreated by an ion exchange process utilizing ammonia prior to calcination at temperature (250-1000° C.) under an inert atmosphere to form an H—Y-zeolite. Followed by refluxing the transition metal-containing LDH catalyst together with the H—Y-zeolite at 50° C. for a predetermined time to form a precipitate. The precipitate is filtering and washing with distilled water to obtain the amalgamated transitional metal LDH@Y-zeolite hybrid catalyst. The disclosure also relates to a method for performing a terminal alkyne dehydrogenation coupling reaction involving a synergetic effect of a bill mill and an amalgamated transition metal layered double hydroxide (LDH)@Y-zeolite hybrid catalyst.

Dependencies are inferred from the claim text.