H4SiW12O40-Catalyzed Levulinic Acid Esterification at Room Temperature for Production of Fuel Bioadditives
Sign Up to like & getrecommendations! Published in 2018 at "Waste and Biomass Valorization"
DOI: 10.1007/s12649-018-00549-x
Abstract: In this work, a route to synthesize bioadditives through H4SiW12O40-catalyzed levulinic acid esterification reactions with alcohols of short chain at room temperature was assessed. Among the Brønsted acids assessed (i.e., sulfuric, p-toluenesulfonic, silicotungstic, phosphomolybdic and… read more here.
Keywords: catalyzed levulinic; temperature; room temperature; levulinic acid ... See more keywords
H4SiW12O40-catalyzed cyclization of epoxides/aldehydes and sulfonyl hydrazides: An efficient synthesis of 3,4-disubstituted 1H-pyrazoles
Sign Up to like & getrecommendations! Published in 2021 at "Chinese Chemical Letters"
DOI: 10.1016/j.cclet.2021.08.037
Abstract: Abstract A simple and efficient method for the synthesis of pyrazoles through a silicotungstic acid (H4SiW12O40)-catalyzed cyclization of epoxides/aldehydes and sulfonyl hydrazides has been developed. Various epoxides/aldehydes were smoothly reacted with sulfonyl hydrazides to furnish… read more here.
Keywords: catalyzed cyclization; disubstituted pyrazoles; cyclization epoxides; sulfonyl hydrazides ... See more keywords