Online Encyclopedia

Search over 40,000 articles from the original, classic Encyclopedia Britannica, 11th Edition.

H2C

Online Encyclopedia

Originally appearing in Volume V27, Page 307 of the 1911 Encyclopedia Britannica.

» Make a correction to this article.
» Add information or comments to this article.

Encyclopedia Home :: GUI-HAN

Spread the word:

del.icio.us it!

H2C CH—See also:

CH2 H2C•CH—CH2 H2C•CH•CH2•See also:

CO2H

CO2H H2C•CH—CH2 N°Me CHOH NN/1e CO NI N Me NMe CIH I ~I II HZC•CH—CHI 2 HZC•CHI —CHI 2 HZC•CI H•COZH HZ •CH—CH See also:

TROPINE, C8H15NO

Tropine Tropinone Tropinic See also:

ACID (from the Lat. root ac-, sharp; acere, to be sour)

acid Tropidine. On the See also:

SYNTHESIS (Gr. a6vOeacs, from avvrcBivac, to put together)

synthesis of tropine, see R. Willstatter, Ber., 1901, 34, pp. 130, 16 Tropic acid, C9H1003, the other decomposition product of atropine, is a saturated hydroxy-acid which is readily converted into atropic acid, C9H802, by dehydrating agents. This latter acid is shown by all its reactions to be C6H5C(:CH2)•CO2H, a fact which is confirmed by its synthesis from See also:

ACETOPHENONE

acetophenone by the See also:

ACTION

action of See also:

PHOSPHORUS (Gr. 4ws, light, sPEpety, to bear)

phosphorus pentachloride, followed by the decomposition of the resulting chloride with an alcoholic See also:

SOLUTION (from Lat. solvere, to loosen, dissolve)

solution of See also:

POTASSIUM [symbol K (from kalium), atomic weight 39.114 0=16)]

potassium See also:

CYANIDE

cyanide and subsequent See also:

HYDROLYSIS (Gr. 6Swp, water, Anew, to loosen)

hydrolysis of the nitrile so formed. These results show that tropic acid must be either See also:

C6H5

C6H5•CH(See also:

CH2OH

CH2OH)•CO2H or C6II5C•(OH)(See also:

CH3)•CO2H, and since the latter See also:

compound has been prepared from acetophenone by the addition of the elements of hydrocyanic acid, followed by subsequent hydrolysis and is an isomer of tropic acid, it follows that tropic acid must be represented by the former of the two formulae. Hence the See also:

ALKALOID

alkaloid atropine, being a tropine-tropate, must have the annexed See also:

formula H2C•CH—CH2 CH2OH NMe CI H•O•CO•CH I 1 H2C•CI H--CH2 C6H5 Atropine.

End of Article: H2C

Additional information and Comments

There are no comments yet for this article.

» Add information or comments to this article.

Please link directly to this article:
Highlight the code below, right click, and select "copy." Then paste it into your website, email, or other HTML.

Site content, images, and layout Copyright © 2006 - Net Industries, worldwide.
Do not copy, download, transfer, or otherwise replicate the site content in whole or in part.

Links to articles and home page are always encouraged.

[back]
GYTHIUM

[next]
H2C CH2 H2C