Benzhydrol
Structural formula | ||||||||||||||||
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General | ||||||||||||||||
Surname | Benzhydrol | |||||||||||||||
other names |
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Molecular formula | C 13 H 12 O | |||||||||||||||
Brief description |
colorless needles |
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properties | ||||||||||||||||
Molar mass | 184.23 g mol −1 | |||||||||||||||
Physical state |
firmly |
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Melting point |
65-67 ° C |
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boiling point |
297-298 ° C |
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solubility |
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safety instructions | ||||||||||||||||
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Benzhydrol or Diphenylmethanol (C 6 H 5 ) 2 CHOH is a secondary alcohol .
presentation
The easiest way to prepare benzhydrol is to use the Grignard reaction of phenylmagnesium bromide and benzaldehyde . Benzhydrol may, inter alia, by reduction of benzophenone with zinc dust in an alkaline solution are shown. Sodium borohydride in methanol can also be used here as a reducing agent .
properties
Benzhydrol melts between 65 and 67 ° C and boils between 297 and 298 ° C.
use
It is used as a raw material in the pharmaceutical industry, especially for antihistamines .
Individual evidence
- ↑ a b c Entry on diphenylmethanol. In: Römpp Online . Georg Thieme Verlag, accessed on May 25, 2014.
- ↑ a b data sheet diphenylmethanol 99% from Sigma-Aldrich , accessed on December 20, 2013 ( PDF ).
- ↑ a b c Entry on benzhydryl alcohol in the GESTIS substance database of the IFA , accessed on April 5, 2018 (JavaScript required)