Английская Википедия:4,4'-Dihydroxybenzophenone

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Версия от 03:08, 26 декабря 2023; EducationBot (обсуждение | вклад) (Новая страница: «{{Английская Википедия/Панель перехода}} {{chembox | Verifiedfields = changed | Watchedfields = changed | verifiedrevid = 477220615 | Name = 4,4′-Dihydroxybenzophenone | ImageFile = Dihydroxybenzophenone.svg | PIN = Bis(4-hydroxyphenyl)methanone | OtherNames = Benzophenone, 4,4′-dihydroxy-(7Cl,8Cl); 4,4′-dihydroxydiphenyl ketone; Bis(4-hydroxyphenyl) ketone; HBP; HBP (ketone); NSC |Section1={{Chembox Identifiers | ChemS...»)
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Шаблон:Chembox 4,4′-Dihydroxybenzophenone is an organic compound with the formula (HOC6H4)2CO. This off-white solid is a precursor to, or a degradation product of, diverse commercial materials. It is a potential endocrine disruptor.[1]

Synthesis

4,4′-Dihydroxybenzophenone is prepared by the rearrangement of p-hydroxyphenylbenzoate:

HOC6H4CO2C6H5 → (HOC6H4)2CO

Alternatively, p-hydroxybenzoic acid can be converted to p-acetoxybenzoyl chloride. This acid chloride reacts with phenol to give, after deacetylation, 4,4′-dihydroxybenzophenone.

Uses

The main application of 4,4′-dihydroxybenzophenone is as a UV light stabilizer. It and its derivatives are found in cosmetics, plastics, films, adhesives and coatings, optical fiber, and printed circuit boards. It is the precursor to certain polycarbonate polymers.[2]

References

  1. ↑ Шаблон:Cite journal
  2. ↑ David Parker, Jan Bussink, Hendrik T. van de Grampe, Gary W. Wheatley, Ernst-Ulrich Dorf, Edgar Ostlinning, Klaus Reinking "Polymers, High-Temperature" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2002.Шаблон:Doi
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Источник — http://wikihandbk.com/ruwiki/index.php?title=Английская_Википедия:4,4%27-Dihydroxybenzophenone&oldid=12851783