pinacolicadj.

Brit.

/pɪnəˈkɒlɪk/, U.S.

/pɪnəˈkɑlɪk/

Origin: Formed within English, by derivation. Etymons: -ic suffix; pinacol n., -ic suffix.

Etymology: < pinacol- (in pinacoline n.) + -ic suffix. Compare French pinacolique (1886 or earlier). In later use also < pinacol n. + -ic suffix.

Chemistry.

Of, relating to, or derived from pinacol or pinacolone; esp. involving or designating a pinacol rearrangement.

ΚΠ

1875 H. Watts Dict. Chem.: 2nd Suppl. 982 Pinacolic alcohol, C₆H₁₄O..is produced by treating pinacolin with sodium in presence of water.

1934 J. W. Baker Tautomerism xiv. 300 In the Wagner–Meerwein change the pinacolic electron displacement requires the separation, as a positive ion, of hydrogen bound not to oxygen but to carbon.

1948 Ann. Rep. Progress Chem. 1947 44 147 It is necessary to invoke a pinacolic rearrangement for the formation of inene.

1963 Jrnl. Org. Chem. 28 1960/1 The pinacolic reduction of ketones.

1992 Jrnl. Chem. Soc.: Perkin Trans. 1 2657 The second route involves an intramolecular keto aldehyde pinacolic coupling in the key step.

2001 Chemistry 7 3043 The instability of the corresponding titanium pinacolate towards rupture of the pinacolic CC bond.

This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022).

单词	pinacolic
释义	pinacolicadj. Brit. /pɪnəˈkɒlɪk/, U.S. /pɪnəˈkɑlɪk/ Origin: Formed within English, by derivation. Etymons: -ic suffix; pinacol n., -ic suffix. Etymology: < pinacol- (in pinacoline n.) + -ic suffix. Compare French pinacolique (1886 or earlier). In later use also < pinacol n. + -ic suffix. Chemistry. Of, relating to, or derived from pinacol or pinacolone; esp. involving or designating a pinacol rearrangement. ΚΠ 1875 H. Watts Dict. Chem.: 2nd Suppl. 982 Pinacolic alcohol, C₆H₁₄O..is produced by treating pinacolin with sodium in presence of water. 1934 J. W. Baker Tautomerism xiv. 300 In the Wagner–Meerwein change the pinacolic electron displacement requires the separation, as a positive ion, of hydrogen bound not to oxygen but to carbon. 1948 Ann. Rep. Progress Chem. 1947 44 147 It is necessary to invoke a pinacolic rearrangement for the formation of inene. 1963 Jrnl. Org. Chem. 28 1960/1 The pinacolic reduction of ketones. 1992 Jrnl. Chem. Soc.: Perkin Trans. 1 2657 The second route involves an intramolecular keto aldehyde pinacolic coupling in the key step. 2001 Chemistry 7 3043 The instability of the corresponding titanium pinacolate towards rupture of the pinacolic CC bond. This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022). < adj.1875
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