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Biphenyl (also known as diphenyl, phenylbenzene, 1,1′-biphenyl, lemonene [4] or BP) is an organic compound that forms colorless crystals. Particularly in older literature, compounds containing the functional group consisting of biphenyl less one hydrogen (the site at which it is attached) may use the prefixes xenyl or diphenylyl .
The monomer (1,1'-biphenyl)-4,4'-diallylcarbonate is synthesized by reacting 4,4'-biphenyl, pyridine, and allyl chlorocarbonate at 5°C. Simultaneously, the monomer hexa(4-allylcarbonatephenoxy)cyclotriphosphazene is prepared by the reaction of Allyl(4-hydroxyphenyl) carbonate with hexachlorocyclotriphosphazene.
It is an N-protected derivative of 4-anilinopiperidine which can be readily converted to fentanyl or related analogues in several straightforward synthetic steps. It was classified as a DEA List 1 Chemical in 2022, and is also controlled in various other jurisdictions. Its possession, sale and importation are consequently heavily regulated ...
The industrial synthesis of 4,4′-biphenol was developed by Allan Hay in the 1960s. [ 2 ] [ 3 ] As the direct oxidative coupling of phenol gives a mixture of isomers, [ 4 ] [ 5 ] 4,4′-biphenol is instead prepared from 2,6-di-tert-butylphenol , where para-coupling is the only possibility. [ 3 ]
4-Phenylphenol, also known as biphenyl-4-ol and 4-hydroxybiphenyl is an organic compound. It is a phenol analog of biphenyl. Production
Dihydroxybiphenyl (as known as biphenol) refers to a class of organic compounds consisting of a biphenyl structure with two hydroxyl groups attached. The most common isomers are 2,2'-dihydroxybiphenyl and 4,4'-dihydroxybiphenyl.
Benzidine (trivial name), also called 1,1'-biphenyl-4,4'-diamine (systematic name), is an organic compound with the formula (C 6 H 4 NH 2) 2. It is an aromatic amine. It is a component of a test for cyanide. Related derivatives are used in the production of dyes. Benzidine has been linked to bladder and pancreatic cancer. [2]
4-Carboxybenzaldehyde (CBA) is an organic compound with the formula OCHC 6 H 4 CO 2 H. It consists of a benzene ring substituted with both an aldehyde and a carboxylic acid, with these functional groups on opposite corners of the ring. This compound is formed in 0.5% yield as a byproduct in the production terephthalic acid from p-xylene. Since ...
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