scholarly journals Two Copper-Carbenes from One Diazo Compound

2021 ◽  
Author(s):  
María Álvarez ◽  
Maria Besora ◽  
Francisco Molina ◽  
Feliu Maseras ◽  
Tomás R. Belderrain ◽  
...  
Keyword(s):  
Diazo Compound

scholarly journals Unlocking a Diazirine Long-Lived Nuclear Singlet State via Photochemistry: NMR Detection and Lifetime of an Unstabilized Diazo-Compound

2018 ◽  
Vol 140 (48) ◽  
pp. 16855-16864 ◽  
Author(s):  
Barbara Procacci ◽  
Soumya S. Roy ◽  
Philip Norcott ◽  
Norman Turner ◽  
Simon B. Duckett
Keyword(s):  
Singlet State ◽  
Diazo Compound

scholarly journals Molecular iodine-catalyzed one-pot multicomponent synthesis of 5-amino-4-(arylselanyl)-1H-pyrazoles

2018 ◽  
Vol 14 ◽  
pp. 2789-2798 ◽  
Author(s):  
Camila S Pires ◽  
Daniela H de Oliveira ◽  
Maria R B Pontel ◽  
Jean C Kazmierczak ◽  
Roberta Cargnelutti ◽  
...  
Keyword(s):  
Multicomponent Reaction ◽  
Functional Group ◽  
Diazo Compound ◽  
Molecular Iodine ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
X Ray ◽  
Dehydrogenative Coupling ◽  
Reflux Temperature

A one-pot iodine-catalyzed multicomponent reaction has been developed for the selective preparation of 5-amino-4-(arylselanyl)-1H-pyrazoles from a diverse array of benzoylacetonitriles, arylhydrazines and diaryl diselenides. The reactions were conducted in MeCN as solvent at reflux temperature under air. The methodology presents a large functional group tolerance to electron-deficient, electron-rich, and bulky substituents and gave the expected products in good to excellent yields. The synthesized 1,3-diphenyl-4-(phenylselanyl)-1H-pyrazol-5-amine was submitted to an oxidative dehydrogenative coupling to produce a diazo compound confirmed by X-ray analysis.

scholarly journals Bio- and air-tolerant carbon–carbon bond formations via organometallic ruthenium catalysis

2009 ◽  
Vol 74 (7-8) ◽  
pp. 1023-1034 ◽  
Author(s):  
Louis Adriaenssens ◽  
Lukáš Severa ◽  
Jan Vávra ◽  
Tereza Šálová ◽  
Jakub Hývl ◽  
...  
Keyword(s):  
Organometallic Compound ◽  
Bond Formation ◽  
Diazo Compound ◽  
Carbon Bond ◽  
Cell Lysate ◽  
Bodily Fluids ◽  
Carbon Carbon Bond ◽  
Ruthenium Catalysis ◽  
Aqueous Conditions ◽  
Alkyne Coupling

Selected [2+2+2] cycloadditions, alkene–alkyne coupling and fusion of enyne with diazo compound, all triggered by an artificial organometallic ruthenium catalyst are demonstrated to proceed under ambient aerobic aqueous conditions in presence of bodily fluids or cell lysate. To the best of our knowledge, these are the first examples of bio- and air-tolerant C–C bond formation catalyzed by an artificial organometallic compound.

RhI-Catalyzed Stille-Type Coupling of Diazoesters with Aryl Trimethylstannanes

2015 ◽  
Vol 68 (9) ◽  
pp. 1379 ◽  
Author(s):  
Zhen Liu ◽  
Ying Xia ◽  
Sheng Feng ◽  
Shuai Wang ◽  
Di Qiu ◽  
...  
Keyword(s):  
Diazo Compound ◽  
Cross Coupling ◽  
Mild Conditions ◽  
Alternative Approach ◽  
Migratory Insertion ◽  
Type Coupling ◽  
Insertion Process ◽  
Coupling Partner

A RhI-catalyzed cross-coupling of diazoester with arylstannane was developed. This reaction represents the first Stille-type coupling that uses a diazo compound as the coupling partner. The reaction is operationally simple and can be carried out under mild conditions, thus providing an alternative approach for the synthesis of α-aryl esters. RhI–carbene migratory insertion process is suggested to be involved as the key step in this Stille-type coupling.

Organophosphorus Compounds, XXVI * The Reaction of Diazoketones with Trialkyl Phosphites

1977 ◽  
Vol 32 (11) ◽  
pp. 1287-1290 ◽  
Author(s):  
M. M. Sidky ◽  
F. M. Soliman ◽  
A. A. El Kateb
Keyword(s):  
Reaction Mechanisms ◽  
Organophosphorus Compounds ◽  
Diazo Compound ◽  
Trialkyl Phosphites

Diazoketones 1, 8, 10 and 14 react with trialkyl phosphites to give different products depending upon the structure of the diazo compound, the type of the solvent and the nature of the phosphite ester used. Possible reaction mechanisms are discussed and the structural assignements are based on analytical, chemical and spectroscopic results.

scholarly journals Detection of saccharides using diazo-compound as a color reagent.

1995 ◽  
Vol 44 (5) ◽  
pp. 377-382 ◽  
Author(s):  
Yuji SUZUKI ◽  
Yoshikatsu SAKAGISHI
Keyword(s):  
Diazo Compound ◽  
Color Reagent
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