Acetic Anhydride → Nicotinamide

HRID 1579341ノート

反応式

HRID 1579341 の反応式
[N+](C1C=CC=CC=1C=O)([O-])=O.C([N:14](CC)[C:15](=[O:23])[C:16]1[CH:21]=[CH:20][C:19](C)=[N:18][CH:17]=1)C.C(OC(=O)C)(=O)C.C(N(CC)C(=O)C1C=CC(C=CC2C=CC=CC=2[N+]([O-])=O)=NC=1)C>>[C:15]([NH2:14])(=[O:23])[C:16]1[CH:21]=[CH:20][CH:19]=[N:18][CH:17]=1

参加物

5

実験手順

Reaction of o-nitrobenzaldehyde (41.7 g., 0.276 mole) with N,N-diethyl-6-methylnicotinamide (53.1 g., 0.276 mole) in the presence of acetic anhydride (56.3 g., 0.552 mole) according to the method of L. Horwitz, J. Org. Chem., 21, 1039 (1956) provides 67.4 g. (75%) of N,N-diethyl-6-(o-nitrostyryl)nicotinamide. Crystallization from acetonitrile affords the analytically pure nicotinamide having a melting point of 145°-147°C. (corr.).

後処理

  1. custom, 21, 1039 (1956) provides 67.4 g
  2. customCrystallization from acetonitrile

出典と根拠

ORDレコード
ord-2acc22fbd97649d3aca522c693a8be76
出典データセット
uspto-grants-1976_01
特許番号
US03931195

反応ノート

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