Reaktion #2053488

ord-126ef527c6e640929ab564b37f60afd5

Reaktionsgleichung

CCOC(=O)N=NC(=O)OCC
diethyl azodicarboxylate
O=c1c(I)n[nH]c2c(F)cccc12
8-fluoro-3-iodocinnolin-4(1H)-one
COC(C)(C)CCO
3-methoxy-3-methylbutan-1-ol
c1ccc(P(c2ccccc2)c2ccccc2)cc1
triphenylphosphine
COC(C)(C)CCn1nc(I)c(=O)c2cccc(F)c21
expected compound
COC(C)(C)CCn1nc(I)c(=O)c2cccc(F)c21
8-Fluoro-3-iodo-1-(3-methoxy-3-methylbutyl)cinnolin-4(1H)-one

Lösungsmittel

Reaktionsbedingungen

Temperatur
5°CELSIUS
Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    workup.WAITthe mixture is left
  2. 2
    EinengenThe reaction mixture is concentrated under vacuum
  3. 3
    Sonstigethe residue is chromatographed on silica gel, elution

Vorschrift

A mixture of 0.72 g of 8-fluoro-3-iodocinnolin-4(1H)-one and 0.48 ml of 3-methoxy-3-methylbutan-1-ol in 20 ml of THF is cooled to 5° C., 0.97 g of triphenylphosphine is added and then 0.65 g of diethyl azodicarboxylate is slowly added, and the mixture is left stirring overnight at AT. The reaction mixture is concentrated under vacuum and the residue is chromatographed on silica gel, elution being carried out with the cyclohexane/AcOEt mixture (75/25; v/v) and then with AcOEt. The expected compound is obtained.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US08420651B2uspto-grants-2013_04