amide

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amide

(ăm`īd), organic compound formed by reaction of an acid chloride, acid anhydride, or ester with an amine. Under strong acidic conditions an amide can be hydrolyzed to yield an amine and a carboxylic acid. The reverse of this process results in the loss of water and is used in nature to link amino acids to form proteins. See amino groupamino group,
in chemistry, functional group that consists of a nitrogen atom attached by single bonds to hydrogen atoms, alkyl groups, aryl groups, or a combination of these three. An organic compound that contains an amino group is called an amine.
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; carboxyl groupcarboxyl group
, in chemistry, functional group that consists of a carbon atom joined to an oxygen atom by a double bond and to a hydroxyl group, OH, by a single bond. Carboxylic acids are compounds whose molecules contain a carboxyl group that is joined to a hydrogen atom, an
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amide

[′am‚īd]
(organic chemistry)
One of a class of organic compounds containing the CONH2 radical.

amide

1. any organic compound containing the functional group -CONH2
2. consisting of, containing, or concerned with the group -CONH2
3. an inorganic compound having the general formula M(NH2)x, where M is a metal atom
References in periodicals archive ?
FTIR: 3200 (N-H); 1722 (C=O of ester); 1625 [cm.sup.-1] (C=O amidic); [sup.1]H NMR (350 MHz, CD[Cl.sub.3]): [[delta].sub.H] = 1.32 (3H, q, -C[H.sub.2]C[H.sub.3], J = 7.2 Hz), 2.15 (3H, s, -N=C-C[H.sub.3]), 2.40, 2.58 (6H, 2s for [C.sub.2]-C[H.sub.3], [C.sub.7]-C[H.sub.3]), 3.40 (2H, s, -N=C-C[H.sub.2]-CO), 4.24 (2H, q, -C[H.sub.2]C[H.sub.3], J = 7.2 Hz), 5.63 (2H, s, -OC[H.sub.2]CO), 6.26 (1H, s, C3-H), 7.15 (1H, d, C6-H, J = 7.8 Hz), 8.55 (1H, d, [C.sub.5]-H, J = 7.8 Hz), 9.05 (1H, s, NH, [D.sub.2]O exchangeable); [sup.13]C NMR (150 MHz, CD[Cl.sub.3]): [[delta].sub.C] = 14.22, 21.40, 25.05, 30.94, 44.47, 46.04, 59.49, 61.80, 112.48, 118.40, 119.99, 135.86, 150.07, 151.19, 161.94, 168.48, 178.11, 207.09; MS (m/z): 358 [M.sup.+.].
[sup.1]H NMR (400 MHz, [delta], ppm): 3.71 (PEG), 3.9-3.5 (C2(H)-C6(H) of cyclodextrin), 5.1 (C1(H) anomeric proton of cyclodextrin), 11 (amidic NH), 7.25 (HC=C of thymine), 1.75 (C[H.sub.3] C=C).
As HA FT-IR characteristics were consistent with bulk soil [sup.13]C-NMR results (for the aromatic, carbonylic, carboxylic, and amidic properties), extracted HAs may be regarded as a representative pool of SOM.
However, the evaluation period proved to be insufficient to reach the equilibrium between the amidic and nitric forms (Figure 5).
Four signals centered in the range of [delta] 10.8 to 12.27 were assigned to amidic iminol structures [25] (Scheme 2 and Figure 2).
Ceramides (sphingolipids) are molecules having: a sphingoid amidic base (14-22), and are mostly decorated with hydroxyl functions and carbon-carbon double bond (s), attached to a long chain fatty acid (14-30 carbon atoms), which may saturated or unsaturated [4].
The good solubility of poly (amic acid) precursors in amidic solvents makes possible the introduction in their solutions of silica precursors and of the water required for hydrolysis process.
Attn: anita brajkovic; ljubia amidic; miro macan; ivana mihalic fabris
For example The IR spectrum of compound 30 revealed the absence of carbonyl group and amidic NH group.
where conversion is 0), A (the pre-exponential term) is a constant characteristic of each reaction (referred to as the frequency factor), [C.sub.0] is the initial concentration of carboxylic or amidic [i.e.
To quantify the formation of the PP/PA6 diblock copolymer, we follow the increase in the amidic bond at 1640 [cm.sup.-1] when PP-g-AA copolymer was used, and the increase in the imidic bond at 1690 cm-1 for PP-g-MA compatibilizer (40), (41).
The good solubility of the poly(amic acid) precursors in amidic solvents makes possible the introduction into their solutions of metal oxide precursors and of the water required for the hydrolysis process.