Earth-Abundant and Precious Metal Nanoparticle Catalysis

2020 ◽  
pp. 77-129
Author(s):  
Margery Cortes-Clerget ◽  
Nnamdi Akporji ◽  
Balaram S. Takale ◽  
Alex Wood ◽  
Evan Landstrom ◽  
...  
Keyword(s):  
Precious Metal ◽  
Metal Nanoparticle ◽  
Earth Abundant ◽  
Nanoparticle Catalysis

scholarly journals Chiral Piperazines by Phosphoric Acid/Metal Nanoparticle Catalysis

Synfacts ◽  
2017 ◽  
Vol 13 (05) ◽  
pp. 0545
Keyword(s):  
Phosphoric Acid ◽  
Metal Nanoparticle ◽  
Nanoparticle Catalysis

scholarly journals Development of Metal Nanoparticle Catalysis toward Drug Discovery

2019 ◽  
Vol 67 (8) ◽  
pp. 733-771 ◽  
Author(s):  
Mitsuhiro Arisawa
Keyword(s):  
Drug Discovery ◽  
Metal Nanoparticle ◽  
Nanoparticle Catalysis

Transition metal nanoparticle catalysis in green solvents

2010 ◽  
Vol 254 (9-10) ◽  
pp. 1179-1218 ◽  
Author(s):  
Ning Yan ◽  
Chaoxian Xiao ◽  
Yuan Kou
Keyword(s):  
Transition Metal ◽  
Metal Nanoparticle ◽  
Green Solvents ◽  
Nanoparticle Catalysis

Transition Metal Nanoparticle Catalysis in Ionic Liquids

ACS Catalysis ◽  
2011 ◽  
Vol 2 (1) ◽  
pp. 184-200 ◽  
Author(s):  
Jackson D. Scholten ◽  
Bárbara Caroline Leal ◽  
Jairton Dupont
Keyword(s):  
Ionic Liquids ◽  
Transition Metal ◽  
Metal Nanoparticle ◽  
Nanoparticle Catalysis

Leaching in Metal Nanoparticle Catalysis

2014 ◽  
Vol 8 (1) ◽  
pp. 31-51 ◽  
Author(s):  
Rocio Redon ◽  
Nidia Pena ◽  
Fermin Crescencio
Keyword(s):  
Metal Nanoparticle ◽  
Nanoparticle Catalysis

scholarly journals Selective Manganese-Catalyzed Dimerization and Cross-Coupling of Terminal Alkynes

2021 ◽  
Author(s):  
Stefan Weber ◽  
Luis F. Veiros ◽  
Karl Kirchner
Keyword(s):  
Dft Calculations ◽  
Precious Metal ◽  
Bond Cleavage ◽  
Cross Coupling ◽  
Metal Catalyst ◽  
Catalyst Loading ◽  
Terminal Alkynes ◽  
Migratory Insertion ◽  
Earth Abundant ◽  
First Time

<div>For the first time, an efficient manganese-catalyzed dimerization of terminal alkynes to afford 1,3-enynes is described. This reaction is atom economic, implementing an inexpensive, earth abundant non-precious metal catalyst. The pre-catalyst is the bench-stable alkyl bisphosphine Mn(I) complex fac-[Mn(dippe)(CO)3(CH2CH2CH3)]. The catalytic process is initiated by migratory insertion of a CO ligand into the Mn-alkyl bond to yield an acyl intermediate which undergoes rapid C-H bond cleavage of the alkyne forming an active Mn(I) acetylide catalyst [Mn(dippe)(CO)2(C≡CPh)(η2-HC≡CPh)] together with liberated butanal. A range of aromatic and aliphatic terminal alkynes were efficiently and selectively converted into head-to-head Z-1,3-enynes and head-to-tail gem-1,3-enynes, respectively, in good to excellent yields. Moreover, cross-coupling of aromatic and aliphatic alkynes yields selectively head-to-tail gem-1,3-enynes. In all cases, the reactions were performed at 70 °C with a catalyst loading of 1-2 mol %. A mechanism based on DFT calculations is presented.</div><div><br></div>

scholarly journals Selective Manganese-Catalyzed Dimerization and Cross-Coupling of Terminal Alkynes

2021 ◽  
Author(s):  
Stefan Weber ◽  
Luis F. Veiros ◽  
Karl Kirchner
Keyword(s):  
Dft Calculations ◽  
Precious Metal ◽  
Bond Cleavage ◽  
Cross Coupling ◽  
Metal Catalyst ◽  
Catalyst Loading ◽  
Terminal Alkynes ◽  
Migratory Insertion ◽  
Earth Abundant ◽  
First Time

<div>For the first time, an efficient manganese-catalyzed dimerization of terminal alkynes to afford 1,3-enynes is described. This reaction is atom economic, implementing an inexpensive, earth abundant non-precious metal catalyst. The pre-catalyst is the bench-stable alkyl bisphosphine Mn(I) complex fac-[Mn(dippe)(CO)3(CH2CH2CH3)]. The catalytic process is initiated by migratory insertion of a CO ligand into the Mn-alkyl bond to yield an acyl intermediate which undergoes rapid C-H bond cleavage of the alkyne forming an active Mn(I) acetylide catalyst [Mn(dippe)(CO)2(C≡CPh)(η2-HC≡CPh)] together with liberated butanal. A range of aromatic and aliphatic terminal alkynes were efficiently and selectively converted into head-to-head Z-1,3-enynes and head-to-tail gem-1,3-enynes, respectively, in good to excellent yields. Moreover, cross-coupling of aromatic and aliphatic alkynes yields selectively head-to-tail gem-1,3-enynes. In all cases, the reactions were performed at 70 °C with a catalyst loading of 1-2 mol %. A mechanism based on DFT calculations is presented.</div><div><br></div>

ChemInform Abstract: Leaching in Metal Nanoparticle Catalysis

ChemInform ◽  
2014 ◽  
Vol 45 (33) ◽  
pp. no-no
Author(s):  
Rocio Redon ◽  
Nidia G. G. Pena ◽  
Fermin R. Crescencio
Keyword(s):  
Metal Nanoparticle ◽  
Nanoparticle Catalysis
Sign in / Sign up

Export Citation Format

Share Document