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Benzylidene compounds are, formally speaking, derivatives of benzylidene, although few are prepared from the carbene.
Benzylidene compounds are, formally speaking, derivatives of benzylidene, although few are prepared from the carbene. Benzylidene acetal
In organic chemistry
Organic chemistry is a subdiscipline within chemistry involving the scientific study of the structure, properties, and reactions of organic compounds and organic materials, i.e., matter in its various forms that contain ...
is a protecting group
A protecting group or protective group is introduced into a molecule by chemical modification of a functional group to obtain chemoselectivity in a subsequent chemical reaction. It plays an important role in multistep organic synthesis.
In many ...
in synthetic organic chemistry of the form PhCH(OR)2. For example, 4,6-O-benzylidene-glucopyranose is a glucose derivative. Benzylidene is an archaic term for compounds of the type PhCHX2 and PhCH= substituents (Ph = C6H5). For example, dibenzylideneacetone
Dibenzylideneacetone or dibenzalacetone, often abbreviated dba, is an organic compound with the formula C17H14O. It is a pale-yellow solid insoluble in water, but soluble in ethanol.
It was first prepared in 1881 by the German chemist Rainer Ludwi ...
is (PhCH=CH)2CO. Benzal chloride
Benzal chloride is an organic compound with the formula C6H5CHCl2. This colourless liquid is a lachrymator and is used as a building block in organic synthesis.
Preparation and usage
Benzal chloride is produced by the free radical chlorination o ...
, PhCHCl2, is alternatively named benzylidene chloride.
Benzylidene is the molecule C6H5CH. It is a triplet carbene
In organic chemistry, a carbene is a molecule containing a neutral carbon atom with a valence of two and two unshared valence electrons. The general formula is or where the R represents substituents or hydrogen atoms.
The term "carbene" ma ...
(CAS RN 3101-08-4). It is generated by irradiation of phenyldiazomethane.
See also
*Aurone
An aurone is a heterocyclic chemical compound which is a type of flavonoid. There are two isomers of the molecule, with (''E'')- and (''Z'')-configurations. The molecule contains a benzofuran element associated with a benzylidene linked in pos ...
References
External links
* Aromatic compounds {{aromatic-stub