LIGHT CATALYZED ORGANIC REACTIONS. V.1THE ADDITION OF AROMATIC CARBONYL COMPOUNDS TO A DISUBSTITUTED ACETYLENE

1956 ◽  
Vol 78 (4) ◽  
pp. 876-877 ◽  
Author(s):  
G. Büchi ◽  
James T. Kofron ◽  
E. Koller ◽  
David Rosenthal
Keyword(s):  
Carbonyl Compounds ◽  
Organic Reactions ◽  
Disubstituted Acetylene ◽  
Aromatic Carbonyl Compounds

Tetranuclear Copper and Mononuclear Nickel Complex of the Schiff Base of (3Z)-3-Hydrazonobutan-2-One Oxime with Different Aromatic Carbonyl Compounds: Synthesis, Single Crystal X-Ray Structure, Catecholase Activity, Phenoxazinone Synthase Activity, Catalytic Study for the Homocoupling of Benzyl Amines

2019 ◽  
Author(s):  
Swaraj Sengupta ◽  
Sahanwaj Khan ◽  
Shyamal K. Chattopadhyay ◽  
Indrani Banerjee ◽  
Tarun K. Panda ◽  
...  
Keyword(s):  
Schiff Base ◽  
Single Crystal ◽  
Copper Complex ◽  
Carbonyl Compounds ◽  
Nickel Complex ◽  
Schiff Base Ligands ◽  
X Ray ◽  
Phenoxazinone Synthase ◽  
Catecholase Activity ◽  
Aromatic Carbonyl Compounds

Synthesis and characterisation of one trinuclear copper complex, ([Cu<sub>3</sub>L<sub>3</sub>O]ClO<sub>4</sub>) (<b>1</b>) and one nickel complex ([Ni(L'H)<sub>2</sub>(dmso)<sub>2</sub>](ClO<sub>4</sub>)<sub>2</sub>) (<b>2</b>) with Schiff base ligands: (3Z)-3-((Z)-(1-(thiophen-2-yl)ethylidene)hydrazono)butan-2-one oxime (LH) and 1-(pyridin-2-yl)ethylidene)hydrazono)butan-2-one oxime (L<sup>'</sup>H). <b>1</b> shows high catecholase activity and has also been tested as a catalyst for the synthesis of benzylimine. <b>2 </b> shows phenoxazinone synthase activity.

The protonation of aromatic carbonyl compounds

1968 ◽  
Vol 90 (23) ◽  
pp. 6453-6457 ◽  
Author(s):  
C. C. Greig ◽  
Colin D. Johnson
Keyword(s):  
Carbonyl Compounds ◽  
Aromatic Carbonyl Compounds

Organic reactions using sodium hydrogentelluride. 3. The Reaction of Sodium Hydrogentelluride with .alpha.,.beta.-Unsaturated Carbonyl Compounds

1994 ◽  
Vol 59 (12) ◽  
pp. 3500-3502 ◽  
Author(s):  
Masakazu Yamashita ◽  
Yoshifumi Tanaka ◽  
Akishi Arita ◽  
Minoru Nishida
Keyword(s):  
Carbonyl Compounds ◽  
Organic Reactions ◽  
Alpha Beta

A comprehensive evaluation of the toxicology of cigarette ingredients: aromatic carbonyl compounds

2011 ◽  
Vol 23 (sup1) ◽  
pp. 90-101 ◽  
Author(s):  
Christopher R.E. Coggins ◽  
Erica J. Sena ◽  
Timothy B. Langston ◽  
Michael J. Oldham
Keyword(s):  
Carbonyl Compounds ◽  
Comprehensive Evaluation ◽  
Aromatic Carbonyl Compounds

scholarly journals Effect of 1,4-Napthaquinone (NQ) and benzophenone (BPH)on the photodegradation and biodegradation of methyl cellulose film

2010 ◽  
Vol 7 (1) ◽  
pp. 737-744
Author(s):  
Baghdad Science Journal
Keyword(s):  
Molecular Weight ◽  
Film Thickness ◽  
Carbonyl Compounds ◽  
Methyl Cellulose ◽  
Chain Scission ◽  
Cellulose Derivative ◽  
Accelerated Weathering ◽  
Cellulose Derivatives ◽  
Photodegradation Rate ◽  
Aromatic Carbonyl Compounds

The induced photodegradation of methyl cellulose (MC) films in air was investigated in the absence and presence of aromatic carbonyl compounds(photosenssitizers): 1,4-naphthaquinone (NQ) and benzophenone (BPH) by accelerated weathering tester. The addition of (0.01 wt %) of low molecular weight aromatic carbonyl compounds to cellulose derivatives films(25µm in thickness) enhanced the photodegradation of the polymer films.The photodegradation rate was measured by the increase in carbonyl absorbance. Decreases in solution viscosity and reduction of molecular weight were also observed in the irradiated samples. Changes in the number-average chain scission, the degree of deterioration and in the quantum yield of chain scission values are also observed, and it was concluded that branching or cross-linking has occurred for cellulose derivative with NQ and BPH. Findings from all analytical techniques indicated that the 1,4-naphthaquinone (NQ) photosensitizer enhance the photodegradation of methyl cellulose more than benzophenone (BPH). The effect of the photosensitizer concentration, (ranging from 0.01 to 0.1 %), on the rate of photodegradation was also monitored for MC films. The rates are increased with increasing the photosensitizer concentration. The effect of film thickness is also studied at fixed sensitizer concentration (0.05%), and results show that the rate of cellulose derivative photodegradation decreases with increasing film thickness. The rate constants of the photodegradation of the photosensitizers deduced in cellulose derivatives films, [at concentration of (0.1%)by weight and thickness (25µm)]. Biodegradation of irradiated cellulose derivatives films was conclusively established with bacteria type Pseudomonas aeuroginosa Rb-19 isolated from crude oil. The amount of bacteria growth on MC after 30 days was lower, while there was no growth observed in MC with BPH

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