benzophenone sentence in Hindi
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- It may be prepared through a Diels-Alder reaction by refluxing tetraphenylcyclopentadienone and diphenylacetylene in benzophenone or other high-temperature solvent.
- For instance, balanol s benzophenone rings are positioned beside the glycine-rich loop and further from the more polar catalytic loop.
- Peroxides may be removed by washing with acidic iron ( II ) sulfate, filtering through alumina, or distilling from sodium / benzophenone.
- Benzophenone can also be added to plastic packaging as a UV blocker to prevent photo-degradation of the packaging polymers or its contents.
- The benzophenone and hexahydroazepane moieties are connected via an ester linkage, and the azepane and benzoyl moieties are connected through an amide linkage.
- In fact, in complex with PKA, balanol's distal benzophenone ring was observed to be nearly orthogonal with the neighboring ring.
- In the above reaction scheme, a mixture of gaseous hydrogen chloride and hydrogen sulfide are passed into a cooled solution of benzophenone in ethanol.
- A very effective way to remove any traces of water from THF is by reflux with sodium wire in the presence of a small amount of benzophenone.
- Thus, sodium / benzophenone can be used as an indicator of air-free and moisture-free conditions in the purification of solvents by distillation.
- Another early application is the synthesis of unnatural chiral amino acids in a formal reductive amination for example starting from benzophenone and the hydrazone of benzoyl chloride:
- It is made by the organometallic addition of 4-bromopyridine to benzophenone, followed by catalytic hydrogenation of the pyridine heteroaromatic ring system to the corresponding piperidine.
- Examples of cross-conjugation can be found in molecules such as benzophenone, divinylketones, p-quinones, dendralenes, radialenes, fullerene, and Indigo dye.
- Exposure to oxygen ( diradical ) converts this carbene to the corresponding benzophenone and the diphenylmethane compound is formed when it is trapped by 1, 4-cyclohexadiene.
- Among the UV filters that result in coral bleaching according to studies are : ethylhexylmethoxycinnamate, benzophenone-3 and 4-methylbenzylidene camphor even in very low concentrations.
- Niobium chloride can also generate N-acyliminium compounds from certain pyrrolidines which are substrates for nucleophiles such as allyltrimethylsilane, indole, or the silyl enol ether of benzophenone.
- While other interactions also occur, most of the polar and nonpolar interactions involve the benzophenone substituent of balanol, which interacts with residues comprising the phosphate-binding subsite.
- This intermediate is subsequently converted by a benzophenone 32-hydroxylase, a cytochrome P450 monooxygenase, leading to the formation of 2, 32, 4, 6-tetrahydroxybenzophenone.
- If carried out in dimethylformamide and tetrabutylammonium perchlorate, these can react to form benzophenone azine, which has the formula Ph 2 C = N-N = CPh 2.
- Sunscreens _ which carry a Sun Protection Factor ( SPF ) of 2 to 15 _ contain products such as Methoxycinnamate, Octyl Salicylate and Benzophenone-3 which are sun screens.
- In 1953, William von Eggers Doering and Edwin Dorfman elucidated the correct pathway for the reaction mechanism of the Baeyer-Villiger oxidation by using oxygen-18 to label benzophenone.
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