E‐selective Semi‐hydrogenation of Alkynes under Mild Conditions by a Diruthenium Hydride Complex DOI Creative Commons
Cody B. van Beek, Lars Killian, Martin Lutz

et al.

Chemistry - A European Journal, Journal Year: 2022, Volume and Issue: 28(69)

Published: Aug. 18, 2022

The synthesis, characterization and catalytic activity of a new class diruthenium hydrido carbonyl complexes bound to the

Language: Английский

Controlling hydrogen transfer dynamics in adaptive semihydrogenation of alkynes: Unveiling and directing outer- vs. inner-sphere mechanisms DOI Creative Commons
Vishal Chugh, Jiajun Wu, Markus Leutzsch

et al.

Chem Catalysis, Journal Year: 2024, Volume and Issue: 4(9), P. 101078 - 101078

Published: Aug. 20, 2024

Language: Английский

Citations

2
A Catalytic Version of the Knorr Pyrrole Synthesis Permits Access to Pyrroles and Pyridines DOI

Max Leinert,

Τ. Irrgang, Rhett Kempe

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(46), P. 32098 - 32104

Published: Nov. 11, 2024

Aromatic N-heterocycles, such as pyrroles and pyridines, are important natural products bulk fine chemicals with numerous applications active ingredients of pharmaceuticals agrochemicals, catalysts, in materials sciences. We report here a catalytic version the Knorr pyrrole synthesis which simple diversely available starting materials, 1,2-amino alcohols or 1,3-amino keto esters, undergo dehydrogenative coupling to form respectively. Our reaction forms hydrogen collectible (and usable) byproduct is mediated by well-defined Mn catalyst. The highly functionalized heterocycles was demonstrated, 35 compounds, not yet reported literature, were introduced.

Language: Английский

Citations

2
Manganese-catalyzed transfer semihydrogenation of internal alkynes to E-alkenes with iPrOH as hydrogen source DOI
Antonio Torres-Calis, Juventino J. Garcı́a

Catalysis Science & Technology, Journal Year: 2022, Volume and Issue: 12(9), P. 3004 - 3015

Published: Jan. 1, 2022

The Mn-catalyzed transfer semihydrogenation of internal alkynes to E -alkenes is reported herein, along with hydration α-keto alkynes. Mechanistic studies displayed an asymmetrical Mn-hydride species performing the catalytic turnover.

Language: Английский

Citations

11
Efficient Fe-Catalyzed Terminal Alkyne Semihydrogenation by H2: Selectivity Control via a Bulky PNP Pincer Ligand DOI
Dilip K. Pandey, Eugene Khaskin, Shrinwantu Pal

et al.

ACS Catalysis, Journal Year: 2022, Volume and Issue: 13(1), P. 375 - 381

Published: Dec. 16, 2022

We report an efficient semihydrogenation of terminal alkynes with H2, catalyzed by a modified, tetramethylated PNP pincer Fe hydride complex. The reactivity contrasts analogous classical complex containing CH2 arms, which catalyzes predominantly alkyne dimerization even in the presence and N-Me arm complex, is known to cause overreduction alkanes requires trimethylsilyl protective group. Such straightforward ligand modification convenient tool that switches leads selective alkene formation, no side products observed only minor contribution from overreduction.

Language: Английский

Citations

11
E‐selective Semi‐hydrogenation of Alkynes under Mild Conditions by a Diruthenium Hydride Complex DOI Creative Commons
Cody B. van Beek, Lars Killian, Martin Lutz

et al.

Chemistry - A European Journal, Journal Year: 2022, Volume and Issue: 28(69)

Published: Aug. 18, 2022

The synthesis, characterization and catalytic activity of a new class diruthenium hydrido carbonyl complexes bound to the

Language: Английский

Citations

9