3-Nitrophenylboronic Acid → HCID 11046967, Verbindung

HRID 727438

Reaktionsgleichung

[NH2:1][C:2]1[C:7](I)=[CH:6][C:5]([Br:9])=[CH:4][C:3]=1[S:10]([OH:13])(=[O:12])=[O:11].C(=O)([O-])[O-].[Na+].[Na+].[N+:20]([C:23]1[CH:24]=[C:25](B(O)O)[CH:26]=[CH:27][CH:28]=1)([O-:22])=[O:21]>CN(C)C=O.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[NH2:1][C:2]1[C:3]([S:10]([OH:13])(=[O:12])=[O:11])=[CH:4][C:5]([Br:9])=[CH:6][C:7]=1[C:27]1[CH:26]=[CH:25][CH:24]=[C:23]([N+:20]([O-:22])=[O:21])[CH:28]=1

Komponenten

Reaktionsbedingungen

Temperatur: 70 °C

Versuchsvorschrift

To a solution of 1.9 g (5 mmol) of 2-amino-5-bromo-3-iodobenzenesulphonic acid and 1.6 g (15 mmol) of sodium carbonate in 25 ml of dimethylformamide and 12.5 ml of water are added successively, under a nitrogen atmosphere, 0.231 g (0.2 mmol) of tetrakis(triphenylphosphine)palladium (0) and 1.42 g (8.5 mmol) of 3-nitrobenzeneboronic acid. The reaction medium is heated for 2 hours at 70° C. and is concentrated under reduced pressure. The residue thus obtained is purified by chromatography on an RP 18 reverse-phase column, eluting with an acetonitrile/water mixture (1:9). 1.5 g of compound are obtained in sodium sulphonate form.

Aufarbeitung

concentrationis concentrated under reduced pressure
customThe residue thus obtained
customis purified by chromatography on an RP 18 reverse-phase column
washeluting with an acetonitrile/water mixture (1:9)

Quellen und Nachweise

ORD-Eintrag: ord-862f5d7befe94e5a8b4a84ccb56443fe
Quelldatensatz: uspto-grants-1998_01
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US05712393

Verknüpfte Notizen

Wird geladen…