Enabling Semihydrogenation of Alkynes to Alkenes by Using a Calcium Palladium Complex Hydride.
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DOI: 10.1021/jacs.1c09489
Abstract: Selective hydrogenation of alkynes to alkenes requires a catalytic site with suitable electronic properties for modulating the adsorption and conversion of alkyne, alkene as well as dihydrogen. Here, we report a complex palladium hydride, CaPdH2,… read more here.
Keywords: alkynes alkenes; semihydrogenation alkynes; hydride; enabling semihydrogenation ... See more keywords
Brønsted acid-catalyzed metal- and solvent-free quinoline synthesis from N-alkyl anilines and alkynes or alkenes
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DOI: 10.1039/c7gc03175k
Abstract: Bronsted acid-catalyzed cyclization reactions of N-alkyl anilines with alkynes or alkenes in the presence of oxygen gas as an oxidant under metal- and solvent-free conditions are described. Various quinoline derivatives are obtained in satisfactory to… read more here.
Keywords: alkynes alkenes; alkyl anilines; metal solvent; acid catalyzed ... See more keywords
Pyridine tetrafluoro-λ6-sulfanyl chlorides: spontaneous addition to alkynes and alkenes in the presence or absence of photo-irradiation
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DOI: 10.1039/d0qo00339e
Abstract: An addition reaction of pyridine-tetrafluoro-λ6-sulfanylchlorides (Py-SF4Cl) to alkynes and alkenes providing pyridine-tetrafluoro-λ6-sulfanyl-alkenes and pyridine-tetrafluoro-λ6-sulfanyl-alkanes is represented. The addition of Py-SF4Cl occurs spontaneously in the presence of reactants, even in total darkness, but is affected in… read more here.
Keywords: alkynes alkenes; tetrafluoro sulfanyl; addition; presence ... See more keywords
Recent Synthesis Developments of Organoboron Compounds via Metal-Free Catalytic Borylation of Alkynes and Alkenes
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DOI: 10.3390/molecules24010101
Abstract: Diboron reagents have been traditionally regarded as “Lewis acids”, which can react with simple Lewis base to create a significant nucleophilic character in one of boryl moieties. In particular, bis(pinacolato)diboron (B2pin2) reacts with simple Lewis… read more here.
Keywords: alkynes alkenes; organoboron compounds; free catalytic; recent synthesis ... See more keywords