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Miswak mediated green synthesized palladium nanoparticles as effective catalysts for the Suzuki coupling reactions in aqueous media
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نویسنده
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khan m. ,albalawi g.h. ,shaik m.r. ,khan m. ,adil s.f. ,kuniyil m. ,alkhathlan h.z. ,al-warthan a. ,siddiqui m.r.h.
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منبع
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journal of saudi chemical society - 2017 - دوره : 21 - شماره : 4 - صفحه:450 -457
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چکیده
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Green and eco-friendly synthesis of palladium nanoparticles nps is carried out under facile and eco-friendly conditions using an aqueous solution of salvadora persica l. (sp) root extract (re) as a bioreductant,which is commonly known as miswak. the as-synthesized pd nps were characterized using various spectroscopic and microscopic techniques,including,uv–vis spectroscopy,ft-ir spectroscopy,xrd,icp-ms and tem. detailed investigations of the pd nps have confirmed that the polyphenolic phytomolecules present in the re of miswak not only act as a bioreductant by facilitating the reduction and growth of pd nps,but they also functionalize the surface of pd nps and stabilized them in various solvents. furthermore,the catalytic activity of the green synthesized pd nps was also tested toward the suzuki coupling reactions of various aryl halides in aqueous media. the as-prepared pd nps exhibited superior catalytic activity and reusability for the suzuki coupling reaction in aqueous and aerobic conditions. the kinetics of the reaction studied by gc revealed that the conversion of various aryl halides to biphenyl takes place in a short time. © 2016 king saud university
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کلیدواژه
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Catalysis; Metal; Nanoparticles; Natural products; Suzuki
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آدرس
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department of chemistry,college of science,king saud university,p.o. box 2455, Saudi Arabia, department of chemistry,college of science,king saud university,p.o. box 2455,riyadh,saudi arabia,university of tabuk,faculty of science,p.o. box 741, Saudi Arabia, department of chemistry,college of science,king saud university,p.o. box 2455, Saudi Arabia, department of chemistry,college of science,king saud university,p.o. box 2455, Saudi Arabia, department of chemistry,college of science,king saud university,p.o. box 2455, Saudi Arabia, department of chemistry,college of science,king saud university,p.o. box 2455, Saudi Arabia, department of chemistry,college of science,king saud university,p.o. box 2455, Saudi Arabia, department of chemistry,college of science,king saud university,p.o. box 2455, Saudi Arabia, department of chemistry,college of science,king saud university,p.o. box 2455, Saudi Arabia
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Authors
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