benzophenone उदाहरण वाक्य

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.