4-Methylcatechol

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4-Methylcatechol
Names
Preferred IUPAC name
4-Methylbenzene-1,2-diol
Other names
4-Methyl-1,2-dihydroxybenzene
3,4-Dihydroxytoluene
Homocatechol
4-Methyl-1,2-benzenediol
Homopyrocatechol
p-Methylcatechol
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.006.559 Edit this at Wikidata
UNII
  • CC1=CC(=C(C=C1)O)O
Properties
C7H8O2
Molar mass 124.139 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

4-Methylcatechol is an organic compound with the formula CH3C6H3(OH)2 A white solid, it is one of the isomers of methylbenzenediol.

Metabolism

The enzyme cis-1,2-dihydroxy-4-methylcyclohexa-3,5-diene-1-carboxylate dehydrogenase uses cis-1,2-dihydroxy-4-methylcyclohexa-3,5-diene-1-carboxylate and NAD(P)+ to produce 4-methylcatechol, NADH, NADPH and CO2.[1]

Related compounds

Members of the monocot subfamily Amaryllidoideae present a unique type of alkaloids, the norbelladine alkaloids, which are 4-methylcatechol derivatives combined with tyrosine. They are responsible for the poisonous properties of a number of the species. Over 200 different chemical structures of these compounds are known, of which 79 or more are known from Narcissus alone.[2]

Production and occurrence

The brand of low-temperature coke used as a smokeless fuel Coalite obtains homocatechol from ammoniacal liquor by solvent extraction, distillation and crystallisation.[citation needed]

Being structurally related to lignans, it is contributes to the aerosol generate by combustion of wood.[3]

It is a component of castoreum, the exudate from the castor sacs of the mature beaver.[4]

See also

References

  1. ^ Whited GM, McCombie WR, Kwart LD, Gibson DT (1986). "Identification of cis-diols as intermediates in the oxidation of aromatic acids by a strain of Pseudomonas putida that contains a TOL plasmid". J. Bacteriol. 166 (3): 1028–39. doi:10.1128/jb.166.3.1028-1039.1986. PMC 215228. PMID 3711022.
  2. ^ Martin, S.F. 1987. The Amaryllidaceae Alkaloids. In.: Arnold Brossi (ed.) The Alkaloids, Chapter 3. Academic Press.
  3. ^ Rogge WF, Hildemann LM, Mazurek MA, Cass GR, Simoneit, BRT (1998). "Sources of Fine Organic Aerosol. 9. Pine, Oak, and Synthetic Log Combustion in Residential Fireplaces". Environmental Science & Technology. 32 (1): 13–22. Bibcode:1998EnST...32...13R. doi:10.1021/es960930b.
  4. ^ Pheromonal activity of single castoreum constituents in beaver,Castor canadensis., Müller-Schwarze, D and Houlihan, P.W., Journal of Chemical Ecology, April 1991, Volume 17, Number 4, Springer Netherlands, doi:10.1007/BF00994195
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