Carbon–Hydrogen versus Nitrogen–Oxygen Bond Activation in Reactions of N-Oxide Derivatives of 2,2′-Bipyridine and 1,10-Phenanthroline with a Dimethylplatinum(II) Complex

2014 ◽  
Vol 33 (19) ◽  
pp. 5402-5413 ◽  
Author(s):  
Mohamed E. Moustafa ◽  
Paul D. Boyle ◽  
Richard J. Puddephatt
Keyword(s):  
Bond Activation ◽  
Derivatives Of ◽  
Oxygen Bond

scholarly journals The Exchange of Cyclometalated Ligands

Molecules ◽  
2021 ◽  
Vol 26 (1) ◽  
pp. 210
Author(s):  
Alexander D. Ryabov
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Bond Activation ◽  
Bond Cleavage ◽  
Cyclopalladated Complexes ◽  
Derivatives Of ◽  
Cyclometalated Ligand ◽  
Incoming Ligand

Reactions of cyclometalated compounds are numerous. This account is focused on one of such reactions, the exchange of cyclometalated ligands, a reaction between a cyclometalated compound and an incoming ligand that replaces a previously cyclometalated ligand to form a new metalacycle: + H-C*~Z ⇄ + H-C~Y. Originally discovered for PdII complexes with Y/Z = N, P, S, the exchange appeared to be a mechanistically challenging, simple, and convenient routine for the synthesis of cyclopalladated complexes. Over four decades it was expanded to cyclometalated derivatives of platinum, ruthenium, manganese, rhodium, and iridium. The exchange, which is also questionably referred to as transcyclometalation, offers attractive synthetic possibilities and assists in disclosing key mechanistic pathways associated with the C–H bond activation by transition metal complexes and C–M bond cleavage. Both synthetic and mechanistic aspects of the exchange are reviewed and discussed.

Investigations Directed at Catalytic Carbon−Carbon and Carbon−Oxygen Bond Formation via C−H Bond Activation

2007 ◽  
Vol 26 (20) ◽  
pp. 4881-4889 ◽  
Author(s):  
Ian J. Blackmore ◽  
Christopher J. Semiao ◽  
Miriam S. A. Buschhaus ◽  
Brian O. Patrick ◽  
Peter Legzdins
Keyword(s):  
Bond Activation ◽  
Bond Formation ◽  
Oxygen Bond

Carbon–Oxygen Bond Activation in Esters by Platinum(0): Cleavage of the Less Reactive Bond

2012 ◽  
Vol 31 (14) ◽  
pp. 5018-5024 ◽  
Author(s):  
Kimberly A. Manbeck ◽  
Sabuj Kundu ◽  
Aaron P. Walsh ◽  
William W. Brennessel ◽  
William D. Jones
Keyword(s):  
Bond Activation ◽  
Oxygen Bond

HYDROLYSIS AND HYDRAZINOLYSIS OF ESTERS OF N,N-DIMETHYLDITHIOCARBAMIC ACID: A METHOD FOR THE PREPARATION OF MERCAPTANS

1956 ◽  
Vol 34 (8) ◽  
pp. 1093-1100 ◽  
Author(s):  
Marshall Kulka
Keyword(s):  
Alkaline Hydrolysis ◽  
Alkyl Chain ◽  
Wide Scope ◽  
Nitro Derivatives ◽  
High Yields ◽  
Derivatives Of ◽  
Oxygen Bond ◽  
Dimethyl Dithiocarbamate

A method has been developed for the preparation of mercaptans from alkyl and aralkyl chlorides. This consists of the condensation of sodium N,N-dimethyl-dithiocarbamate with halides followed by alkaline hydrolysis or hydrazinolysis of the resulting N,N-dimethyldithiocarbamates (IV). In the hydrazinolysis of IV, an insoluble solid by-product was formed which was identified as 3-hydrazino-4-amino-5-mercapto-4,1,2-triazole. Although this method was found to have wide scope a few failures were encountered. Nitro-derivatives of IV were sensitive to alkali or hydrazine and yielded only tars on attempted degradation. β-Phenoxyethyl N,N-dimethyldithiocarbamates (IX) were found to possess a labile alkyl–oxygen bond so that in the presence of alkali or hydrazine only the corresponding phenols were formed. The labile nature of the alkyl–oxygen bond ceased abruptly when the alkyl chain of IX was increased so that 3-p-chlorophenoxypropyl and 4-p-chlorophenoxybutyl mercaptans could be prepared in high yields.

Carbon–carbon vs. carbon–oxygen bond activation in 2- and 3-furonitriles with nickel

RSC Advances ◽  
2016 ◽  
Vol 6 (103) ◽  
pp. 101259-101266 ◽  
Author(s):  
Ilnett García-Ventura ◽  
Marcos Flores-Alamo ◽  
Juventino J. García
Keyword(s):  
Room Temperature ◽  
Bond Activation ◽  
Oxygen Bond

The reaction between [(dippe)NiH]2 (1) (dippe = 1,2-bis(diisopropylphosphino)-ethane) and 2- and 3-furonitrile (2-FN and 3-FN) was carried out at room temperature.

The mass spectra of the arylsulphonyl derivatives of methyl acetates

1974 ◽  
Vol 27 (11) ◽  
pp. 2361 ◽  
Author(s):  
I Pratanata ◽  
LR Williams
Keyword(s):  
Sulphur Dioxide ◽  
Mass Spectra ◽  
Bond Formation ◽  
Ortho Position ◽  
Aryl Substituent ◽  
Skeletal Rearrangement ◽  
Derivatives Of ◽  
Oxygen Bond

The spectra of arylsulphonyl derivatives of methyl acetates revealed a variety of skeletal rearrangement ions. The influence of the aryl substituent on simple fragmentation, rearrangement by carbon-oxygen bond formation, elimination of ketene after alkoxy migration to the ortho position of the ring and skeletal rearrangement by means of elimination of sulphur dioxide is discussed.

Selective aromatization of the A-ring of steroids through carbon-carbon, carbon-hydrogen, and carbon-oxygen bond activation by an electrophilic ruthenium complex

1993 ◽  
Vol 115 (9) ◽  
pp. 3484-3493 ◽  
Author(s):  
Francisco Urbanos ◽  
Malcolm A. Halcrow ◽  
Juan Fernandez-Baeza ◽  
Francoise Dahan ◽  
Daniel Labroue ◽  
...  
Keyword(s):  
Bond Activation ◽  
Ruthenium Complex ◽  
Oxygen Bond
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