英语词汇“norpinic acid”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

norpinic acid n.

Brit.

/nɔːˌpɪnɪk ˈasɪd/

U.S.

/nɔrˌpɪnɪk ˈæsəd/

a crystalline dicarboxylic acid, C₈H₁₂O₄, existing in cis and trans isomers and differing from pinic acid in having a carboxyl group attached to the cyclobutane ring in place of a carboxymethyl group.

ΘΚΠ

the world > matter > chemistry > organic chemistry > organic acids > [noun] > dicarboxylic acids > miscellaneous others

suberic acid1796

oxalovinic acid1838

citraconic acid1840

melanic acid1840

citramalic acid1864

citratartaric acid1864

isophthalic acid1870

methylmalonic acid1889

norpinic acid1909

naphthalic acid1920

1909 Jrnl. Chem. Soc. 95 1170 Our experiments have, however, shown that this ring, in norpinic acid, exhibits quite unusual stability.

1932 J. L. Simonsen Terpenes II. iii. 129 By the action of dilute hydrochloric acid at 180° [on the cis-isomer], an equilibrium mixture of cis- and trans-norpinic acids is obtained.

1960 A. R. Pinder Chem. of Terpenes v. 91 The molecular formula and properties of norpinic acid suggested it was derived from cyclobutane.

单词	norpinic acid
释义	> as lemmas norpinic acid norpinic acid n. Brit. /nɔːˌpɪnɪk ˈasɪd/ , U.S. /nɔrˌpɪnɪk ˈæsəd/ a crystalline dicarboxylic acid, C₈H₁₂O₄, existing in cis and trans isomers and differing from pinic acid in having a carboxyl group attached to the cyclobutane ring in place of a carboxymethyl group. ΘΚΠ the world > matter > chemistry > organic chemistry > organic acids > [noun] > dicarboxylic acids > miscellaneous others suberic acid1796 oxalovinic acid1838 citraconic acid1840 melanic acid1840 citramalic acid1864 citratartaric acid1864 isophthalic acid1870 methylmalonic acid1889 norpinic acid1909 naphthalic acid1920 1909 Jrnl. Chem. Soc. 95 1170 Our experiments have, however, shown that this ring, in norpinic acid, exhibits quite unusual stability. 1932 J. L. Simonsen Terpenes II. iii. 129 By the action of dilute hydrochloric acid at 180° [on the cis-isomer], an equilibrium mixture of cis- and trans-norpinic acids is obtained. 1960 A. R. Pinder Chem. of Terpenes v. 91 The molecular formula and properties of norpinic acid suggested it was derived from cyclobutane. extracted from nor-prefix < as lemmas
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> as lemmas