Acetic Anhydride → Nicotinamide

HRID 461891ノート

反応式

HRID 461891 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-4afabe8d144a48fb86c73c869558e7b4
出典データセット
uspto-grants-1977_12
特許番号
US04064254

反応ノート

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