mesitoicadj.

Brit.

/mɛsɪˈtəʊɪk/, U.S.

/ˌmɛsɪˈtoʊɪk/

Origin: Formed within English, by compounding. Etymons: mesityl n., -oic comb. form.

Etymology: < mesit- (in mesityl n.) + -oic comb. form.

Chemistry.

mesitoic acid n. an aromatic carboxylic acid, (CH₃)₃C₆H₂COOH, derived from mesitylene; 2,4,6-trimethylbenzoic acid, mesitylenecarboxylic acid.Cf. mesitylenic acid n. at mesitylenic adj.

ΚΠ

1948 Jrnl. Amer. Chem. Soc. 70 3370/1 This type of ionization is exhibited by certain sterically hindered benzoic acids such as 2,6-dimethylbenzoic acid and mesitoic acid and their esters.

1956 J. E. Leffler Reactive Intermediates Org. Chem. v. 86 Mesitoic acid, which resists esterification by other methods, is readily esterified when its sulfuric acid solution is poured into an alcohol.

1976 Nucleic Acids Res. 3 903 A method is described for selective activation of phosphomonoester end groups of oligonucleotides and nucleosidedi-(tri) phosphates via mixed anhydrides with mesitoic acid.

1995 G. M. Loudon Org. Chem. (ed. 3) xxi. 1037 Explain why the acid-catalyzed hydrolysis of the methyl ester of mesitoic acid does not occur at a measurable rate.

This is a new entry (OED Third Edition, September 2001; most recently modified version published online March 2022).

单词	mesitoic
释义	mesitoicadj. Brit. /mɛsɪˈtəʊɪk/, U.S. /ˌmɛsɪˈtoʊɪk/ Origin: Formed within English, by compounding. Etymons: mesityl n., -oic comb. form. Etymology: < mesit- (in mesityl n.) + -oic comb. form. Chemistry. mesitoic acid n. an aromatic carboxylic acid, (CH₃)₃C₆H₂COOH, derived from mesitylene; 2,4,6-trimethylbenzoic acid, mesitylenecarboxylic acid.Cf. mesitylenic acid n. at mesitylenic adj. ΚΠ 1948 Jrnl. Amer. Chem. Soc. 70 3370/1 This type of ionization is exhibited by certain sterically hindered benzoic acids such as 2,6-dimethylbenzoic acid and mesitoic acid and their esters. 1956 J. E. Leffler Reactive Intermediates Org. Chem. v. 86 Mesitoic acid, which resists esterification by other methods, is readily esterified when its sulfuric acid solution is poured into an alcohol. 1976 Nucleic Acids Res. 3 903 A method is described for selective activation of phosphomonoester end groups of oligonucleotides and nucleosidedi-(tri) phosphates via mixed anhydrides with mesitoic acid. 1995 G. M. Loudon Org. Chem. (ed. 3) xxi. 1037 Explain why the acid-catalyzed hydrolysis of the methyl ester of mesitoic acid does not occur at a measurable rate. This is a new entry (OED Third Edition, September 2001; most recently modified version published online March 2022). < adj.1948
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