dialdanen.

Brit.

/dʌɪˈaldeɪn/, U.S.

/daɪˈælˌdeɪn/

Forms: 1800s– dialdane, 1900s– dialdan.

Origin: A borrowing from French. Etymon: French dialdane.

Etymology: < French dialdane (A. Wurtz 1875, in Bull. de la Soc. Chimique de Paris 24 100) < di- di- comb. form + aldane product of the condensation of an aldehyde (J. Ribau 1872, in Compt. rend. hebd. de l'Acad. des Sci. 75 100; < ald- (in aldol aldol n.) + -ane -ane suffix²).With the form dialdan compare German Dialdan (1877 or earlier).

Chemistry. Now rare.

A solid organic aldehyde produced from aldol (3-hydroxybutanal) or acetaldehyde (ethanal) by a self-condensation reaction.The chemical formula was originally given as C₈H₁₄O₃, but the main product of the acetaldehyde reaction was later analysed as C₁₀H₁₈O₄.

ΘΚΠ

the world > matter > chemistry > organic chemistry > aldehydes or alkanals > [noun] > miscellaneous named aldehydes > others

acrolein1841

metaldehyde1841

trichlorocetaldehyde1845

valeral1852

toluic aldehyde1857

glyoxal1858

acraldehyde1864

propionic aldehyde1866

lauric aldehyde, ether1868

salicylaldehyde1869

dialdane1876

isovaleraldehyde1883

rhodinal1892

propenal1894

oxaldehyde1895

methylglyoxal1898

hadromal1899

malondialdehyde1904

pyruvic aldehyde1909

trioxan1915

plasmal1925

1876 Jrnl. Chem. Soc. 30 65 This substance, dialdane,..is formed from dialdol by the elimination of a molecule of water.

1907 Jrnl. Chem. Soc.: Trans. 91 1832 A substance, dialdane, C₈H₁₄O₃, is described as a product of the condensation of acetaldehyde under the influence of hydrochloric acid.

1937 Jrnl. Chem. Soc. 1639 The subsequent slow contraction is probably due to further condensation of the aldol to give dialdan or similar products.

1967 Bull. Chem. Soc. Japan 40 1991/2 The corresponding hydrazone was prepared by stirring a solution of the crude dialdane and 2,4-dinitrophenylhydrazone in 2 n hydrochloric acid.

Derivatives

† dialdanic adj. [after French dialdanique (A. Wurtz, 1877 or earlier, originally in acide dialdanique; compare German Dialdansäure (1877 or earlier))] Obsolete

ΚΠ

1877 Chem. News 19 Jan. 31/1 Certain Derivatives of Dialdol.—M. A. Wurtz.—These are dialdane, C₈H₁₄O₃, and dialdanic acid, C₈H₁₄O₄.

1892 H. E. Roscoe & C. Schorlemmer Treat. Chem. (new ed.) III. ii. 169 Dialdan..is oxidized by permanganate with formation of monobasic dialdanic acid.

This entry has been updated (OED Third Edition, June 2014; most recently modified version published online March 2022).

单词	dialdane
释义	dialdanen. Brit. /dʌɪˈaldeɪn/, U.S. /daɪˈælˌdeɪn/ Forms: 1800s– dialdane, 1900s– dialdan. Origin: A borrowing from French. Etymon: French dialdane. Etymology: < French dialdane (A. Wurtz 1875, in Bull. de la Soc. Chimique de Paris 24 100) < di- di- comb. form + aldane product of the condensation of an aldehyde (J. Ribau 1872, in Compt. rend. hebd. de l'Acad. des Sci. 75 100; < ald- (in aldol aldol n.) + -ane -ane suffix²).With the form dialdan compare German Dialdan (1877 or earlier). Chemistry. Now rare. A solid organic aldehyde produced from aldol (3-hydroxybutanal) or acetaldehyde (ethanal) by a self-condensation reaction.The chemical formula was originally given as C₈H₁₄O₃, but the main product of the acetaldehyde reaction was later analysed as C₁₀H₁₈O₄. ΘΚΠ the world > matter > chemistry > organic chemistry > aldehydes or alkanals > [noun] > miscellaneous named aldehydes > others acrolein1841 metaldehyde1841 trichlorocetaldehyde1845 valeral1852 toluic aldehyde1857 glyoxal1858 acraldehyde1864 propionic aldehyde1866 lauric aldehyde, ether1868 salicylaldehyde1869 dialdane1876 isovaleraldehyde1883 rhodinal1892 propenal1894 oxaldehyde1895 methylglyoxal1898 hadromal1899 malondialdehyde1904 pyruvic aldehyde1909 trioxan1915 plasmal1925 1876 Jrnl. Chem. Soc. 30 65 This substance, dialdane,..is formed from dialdol by the elimination of a molecule of water. 1907 Jrnl. Chem. Soc.: Trans. 91 1832 A substance, dialdane, C₈H₁₄O₃, is described as a product of the condensation of acetaldehyde under the influence of hydrochloric acid. 1937 Jrnl. Chem. Soc. 1639 The subsequent slow contraction is probably due to further condensation of the aldol to give dialdan or similar products. 1967 Bull. Chem. Soc. Japan 40 1991/2 The corresponding hydrazone was prepared by stirring a solution of the crude dialdane and 2,4-dinitrophenylhydrazone in 2 n hydrochloric acid. Derivatives † dialdanic adj. [after French dialdanique (A. Wurtz, 1877 or earlier, originally in acide dialdanique; compare German Dialdansäure (1877 or earlier))] Obsolete ΚΠ 1877 Chem. News 19 Jan. 31/1 Certain Derivatives of Dialdol.—M. A. Wurtz.—These are dialdane, C₈H₁₄O₃, and dialdanic acid, C₈H₁₄O₄. 1892 H. E. Roscoe & C. Schorlemmer Treat. Chem. (new ed.) III. ii. 169 Dialdan..is oxidized by permanganate with formation of monobasic dialdanic acid. This entry has been updated (OED Third Edition, June 2014; most recently modified version published online March 2022). < n.1876
随便看	right of drip right of eminent domain right of emption right of ferry right of prelibation right of primogeniture right of ramblage right of reply right of representation right of retention right of reversion right of search right of search and visit right of sole emption right of veto right of visitation and search right of watercourse right of waterway right of way right of way and passage right off right off the bat right off the reel right on right on the button