Regioselective Allylic Alkylation and Etherification Catalyzed by in situ Generated N-Heterocyclic Carbene Ruthenium Complexes.

ChemInform ◽  
2006 ◽  
Vol 37 (17) ◽  
Author(s):  
Nevin Guerbuez ◽  
Ismail Oezdemir ◽  
Bekir Cetinkaya ◽  
Jean-Luc Renaud ◽  
Bernard Demerseman ◽  
...  
Keyword(s):  
Ruthenium Complexes ◽  
Allylic Alkylation

Regioselective allylic alkylation and etherification catalyzed by in situ generated N-heterocyclic carbene ruthenium complexes

2006 ◽  
Vol 47 (4) ◽  
pp. 535-538 ◽  
Author(s):  
Nevin Gürbüz ◽  
Ismail Özdemir ◽  
Bekir Çetinkaya ◽  
Jean-Luc Renaud ◽  
Bernard Demerseman ◽  
...  
Keyword(s):  
Ruthenium Complexes ◽  
Allylic Alkylation

scholarly journals In situ reversible redox switching of first hyperpolarizability of bimetallic ruthenium complexes

2019 ◽  
Vol 21 (21) ◽  
pp. 11079-11086 ◽  
Author(s):  
C. Karthika ◽  
S. R. Sarath Kumar ◽  
L. Kathuria ◽  
P. K. Das ◽  
A. G. Samuelson
Keyword(s):  
Ruthenium Complexes ◽  
First Hyperpolarizability ◽  
Bimetallic Complex ◽  
Reversible Redox ◽  
Redox Switching

Reversible redox switching of first hyperpolarizability of Monometallic and bimetallic complex.

scholarly journals In situ spectroelectrochemical and theoretical study on the oxidation of a 4H-imidazole-ruthenium dye adsorbed on nanocrystalline TiO2 thin film electrodes

2015 ◽  
Vol 17 (44) ◽  
pp. 29637-29646 ◽  
Author(s):  
Ying Zhang ◽  
Stephan Kupfer ◽  
Linda Zedler ◽  
Julian Schindler ◽  
Thomas Bocklitz ◽  
...  
Keyword(s):  
Thin Film ◽  
Charge Transfer ◽  
Tio2 Thin Film ◽  
Theoretical Study ◽  
Ruthenium Complexes ◽  
Wavelength Dependence ◽  
Nanocrystalline Tio2 ◽  
Thin Film Electrodes ◽  
Ruthenium Dye

A pronounced wavelength dependence of charge transfer character is observed, indicating that these 4H-imidazole-ruthenium complexes are potential multi-photoelectron donors.

ChemInform Abstract: Hydroacetoxylation of Olefins with Acetic Acid Generated in situ from Vinyl Acetate in the Presence of Ruthenium Complexes.

ChemInform ◽  
2011 ◽  
Vol 42 (30) ◽  
pp. no-no
Author(s):  
R. I. Khusnutdinov ◽  
N. A. Shchadneva ◽  
L. F. Khisamova ◽  
U. M. Dzhemilev
Keyword(s):  
Acetic Acid ◽  
Vinyl Acetate ◽  
Ruthenium Complexes

Organocatalytic Asymmetric Allylic Alkylation of Morita–Baylis–Hillman Carbonates with Diethyl 2-Aminomalonate Assisted by In Situ Protection

2017 ◽  
Vol 82 (23) ◽  
pp. 12202-12208 ◽  
Author(s):  
Yu Zheng ◽  
Jing Wang ◽  
Peng-Ju Xia ◽  
Qing-lan Zhao ◽  
Jun-An Xiao ◽  
...  
Keyword(s):  
Allylic Alkylation ◽  
Asymmetric Allylic Alkylation

scholarly journals Optimisation and Scope of a Palladium-Catalysed Allylic Alkylation Cascade

2021 ◽  
Author(s):  
◽  
Matthew Fisk
Keyword(s):  
Organic Synthesis ◽  
Chemical Reactions ◽  
Heterocyclic Ring ◽  
Cascade Reactions ◽  
Major Product ◽  
Complex Mixtures ◽  
Allylic Alkylation ◽  
Reaction Conditions ◽  
Ring Systems

<p>The design and development of new chemical reactions is crucial for progress in organic synthesis research. Cascade reactions, involving two or more steps carried out in situ in a single pot, provide a step-efficient and atom-economic route to synthesise polycyclic ring systems. The synthesis of new heterocyclic ring systems provides valuable routes towards complex natural products. Previous work in the Harvey group led to the development of a regioselective palladium-catalysed allylic alkylation (Pd-AA) cascade. This research aims to expand the scope and utility of this existing Pd-AA cascade, by optimising the current reaction conditions and exploring a range of non-symmetric pyran-based bis-electrophiles and nitrogen and sulfur-based β-carbonyl bis-nucleophiles.  Isomeric 2,3-unsaturated silyl glycosides based on D-glucose and D-galactose were successfully synthesised. These substrates were assessed as bis-electrophiles in the Pd-AA cascade. The yield of the cascade was successfully optimised with the glucose-derived substrate 4-hydroxy-6-methylpyran-2-one, using Pd₂(dba)₃ and Xantphos, to 87% from the previously reported 77% yield. However, the galactose-derived silyl glycoside formed an undesired pyranone as the major product. Additionally, a series of β-dicarbonyl compounds (4-hydroxy-6-methylpyran-2-one analogues) were assessed as bis-nucleophiles in the Pd-AA cascade, with all of the analogues forming complex mixtures of side products and a fully unsaturated pyranone as the major isolated product.</p>

Ruthenium(0)-catalyzed hydroarylation of alkynes via ketone-directed C–H functionalization using in situ-generated ruthenium complexes

2016 ◽  
Vol 52 (62) ◽  
pp. 9715-9718 ◽  
Author(s):  
Feng Hu ◽  
Michal Szostak
Keyword(s):  
Ruthenium Complexes ◽  
User Friendly

Ketone-directed Ru(0)-catalyzed hydroarylation of alkynes enabled byin situgeneration of a Ru(0) catalyst from an air-stable, inexpensive and user-friendly Ru(ii) precatalyst is reported.

Trans Additions of Silanes to 1-Alkynes Catalyzed by Ruthenium Complexes:  Role of in Situ Formed Polynuclear Aggregates

2002 ◽  
Vol 21 (20) ◽  
pp. 4027-4029 ◽  
Author(s):  
Marta Martín ◽  
Eduardo Sola ◽  
Fernando J. Lahoz ◽  
Luis A. Oro
Keyword(s):  
Ruthenium Complexes
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