Results 291 to 300 of about 3,272,143 (363)

Ligand‐Dependent Chemoselectivity in Gold‐Catalyzed Reactions between Anthranils and Diynamides. Formation of Spiro Azacyclic Compounds versus 1‐Imino‐1H‐Indene‐3‐Carboximidamides

ChemistryEurope, EarlyView.
Gold catalysts direct anthranil/diynamide reactions: PPh3AuCl/AgNTf2 forms spiro azacycles (indole intermediate confirmed), while P(t‐Bu)2(o‐biphenyl)AuCl/AgNTf2 yields indene carboximidamides via a proposed mechanism. Gold‐catalyzed reactions between anthranils and diynamides have been investigated, and their reaction chemoselectivity relies on the ...
Satish Bhausaheb Dawange, Rai‐Shung Liu   +1 more
wiley   +1 more source

Hydrogen-Bonding Activation of Gold(I) Chloride Complexes: Enantioselective Synthesis of 3(2H)-Furanones by a Cycloisomerization-Addition Cascade. [PDF]

Org Lett
Elías-Rodríguez P, Benítez M, Iglesias-Sigüenza J, Díez E, Fernández R, Lassaletta JM, Monge D.   +6 more
europepmc   +1 more source

Indole Synthesis via Allenyl Ester; Enantioselective Total Synthesis of Geissoschizoline

ChemistryEurope, EarlyView.
An indole synthesis via an allenyl ester intermediate at ambient temperature has been developed. The mild reaction conditions allow the use of a broad range of substrates. Notably, the utility of this approach is demonstrated through the asymmetric total synthesis of geissoschizoline, a Strychnos‐type monoterpenoid indole alkaloid.
Sohsuke Moriue, Honami Nishioka, Yuto Fukuda, Hiromitsu Takayama, Mariko Kitajima, Hayato Ishikawa   +5 more
wiley   +1 more source

Enantioselective Synthesis of (R)-Sitagliptin via Phase-Transfer Catalytic aza-Michael Addition. [PDF]

ACS Omega
Oh D, Lee J, Yang S, Jung SH, Kim M, Lee G, Park HG.   +6 more
europepmc   +1 more source

The Azidofunctionalization of Alkenes

ChemistryEurope, EarlyView.
The azidofunctionalization of alkenes offers a powerful strategy for synthesizing nitrogen‐containing compounds by installing both an azide and a second functional group in one step. This approach, employing photoredox catalysis, transition metals, and radical methods, is efficient, selective, and versatile, with applications in pharmaceuticals and ...
Pierre Palamini, Jerome Waser
wiley   +1 more source

Enantioselective synthesis of (<i>R</i>)-citronellal from geraniol with an immobilised copper alcohol oxidase and ene reductase.

React Chem Eng
Tagliabue B, Heckmann CM, Villa R, Grisel S, Berrin JG, Lafond M, Ribeaucourt D, Paul CE.   +7 more
europepmc   +1 more source

Rewriting Alkene Frameworks: A Practical Strategy for Nitrogen Incorporation

ChemistryEurope, EarlyView.
Morandi and team developed a metal‐free method to insert nitrogen into unactivated alkenes, forming amidines and nitriles via a transient aza‐allenium intermediate. Using mild, open‐flask conditions, the process delivers high yields and broad functional group tolerance.
Ranjini Laskar, Frank Glorius
wiley   +1 more source

Enantioselective synthesis of chiral α,α-dialkyl indoles and related azoles by cobalt-catalyzed hydroalkylation and regioselectivity switch. [PDF]

Nat Commun
Ren J, Sun Z, Zhao S, Huang J, Wang Y, Zhang C, Huang J, Zhang C, Zhang R, Zhang Z, Ji X, Shao Z.   +11 more
europepmc   +1 more source

Grafted Disulfide‐Linked Linear Polymers for Heterogeneous Thiyl Radical Photocatalysis

Chemistry – A European Journal, EarlyView.
Grafting a linear disulfide‐bridged polymer to a supporting polymer backbone achieved heterogeneous thiyl radical photocatalysis. The polyvinyl backbone ensures recyclability while enabling thiyl radical generation for organic transformations. Achieving ∼99% conversion for diarylalkyne photooxidation, the design strategy combines robustness, solubility,
Sunil Kumar, Bolormaa Bayarkhuu, Jueun Park, Hong Y. Cho, Jeehye Byun   +4 more
wiley   +1 more source

Catalytic enantioselective synthesis of α-C chiral sulfones enabled by merging photoactive electron donor-acceptor complexes with nickel catalysis. [PDF]

Chem Sci
Lai ZM, Xie Y, Huang LL, Guo J, Lu G.
europepmc   +1 more source