HCID 20309894, Verbindung → 2-AMINO-3-CYANO-5-NITROTHIOPHENE
Reaktionsgleichung
C([NH:3][C:4]1[S:5][C:6]([N+:12]([O-:14])=[O:13])=[CH:7][C:8]=1[C:9](=O)[NH2:10])=O.C(NC1SC([N+]([O-])=O)=CC=1C(=O)N)(=O)C1C=CC=CC=1>>[NH2:3][C:4]1[S:5][C:6]([N+:12]([O-:14])=[O:13])=[CH:7][C:8]=1[C:9]#[N:10]Komponenten
3
Versuchsvorschrift
In place of the 83.9 parts of 2-formylamino-3-carbamoyl-5-nitrothiophene used in Example 1 there are used 113.6 parts of 2-benzoylamino-3-carbamoyl-5-nitrothiophene, the first stage of the reaction being carried out for 15 minutes at 60° C. (instead of at 70°-75° C. as in Example 1). 2-Amino-3-cyano-5-nitrothiophene is obtained in an overall yield of 60%.
Aufarbeitung
- custominstead of at 70°-75° C.
Quellen und Nachweise
- ORD-Eintrag
- ord-ee346fbc37de48f88dc6746961bf2509
- Quelldatensatz
- uspto-grants-1978_09
- Patentnummer
- US04111956
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