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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 617272Erstellt: 25. Oktober 2026

Tetraethyltin → 7-Ethyl-5-nitro-1,3-benzothiazole

https://huagongshe.com/reaction/617272

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktTetraethyltinHCID 11704—
Edukt7-Bromo-5-nitrobenzothiazoleHCID 22728031—
LösungsmittelEthyl AcetateHCID 8857—
Produkt7-Ethyl-5-nitro-1,3-benzothiazoleHCID 2272803675,9%

Reaktionsschritte

A solution of 7-bromo-5-nitrobenzothiazole (0.15 g, 0.58 mmol), tetraethyltin (0.18 mL, 0.87 mmol) and catalytic amount of Cl2Pd(PPh3)2 in a sealed tube was stirred for 12 h at 90° C. The reaction mixture was diluted with EtOAc and washed with brine several times. Organic solution was dried over Na2SO4 and concentrated in vacuo, yielding an oil which was subjected to column chromatography (EtOAc, neat) to provide 91 mg (0.44 mmol, 75%) of the desired product.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS05948804
Quelldatensatzuspto-grants-1999_09
ORD IDord-da49eb423fb042fc835aae3f56be2961
Quellennotizuspto-grants-1999_09