Acetic Anhydride → Nicotinamide

HRID 1974090ノート

反応式

HRID 1974090 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-f6118c1f7c4f48f6a0fb2ad8b61d79b9
出典データセット
uspto-grants-1976_12
特許番号
US04000143

反応ノート

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