Hydrogen Bromide → p,p'-(Phenylphosphinylidene)bisphenol

HRID 967679

Reaktionsgleichung

Reaktionsgleichung von HRID 967679
C[O:2][C:3]1[CH:8]=[CH:7][C:6]([P:9](=[O:24])([C:16]2[CH:21]=[CH:20][C:19]([O:22]C)=[CH:18][CH:17]=2)[C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=2)=[CH:5][CH:4]=1.Br.S([O-])([O-])=O.[Na+].[Na+].CBr>>[OH:2][C:3]1[CH:8]=[CH:7][C:6]([P:9](=[O:24])([C:16]2[CH:17]=[CH:18][C:19]([OH:22])=[CH:20][CH:21]=2)[C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=2)=[CH:5][CH:4]=1

Komponenten

5

Edukt 4

HCID 260Hydrogen BromideHCID 6323Methyl BromideHCID 24437Sodium SulfiteHCID 4589182Bis(4-methoxyphenyl)phenylphosphine oxide

Produkt 1

HCID 69930p,p'-(Phenylphosphinylidene)bisphenolAusbeute 62 %

Versuchsvorschrift

Bis(4-methoxyphenyl)phenyl phosphine oxide (1.77 g, 5.2 mmol) and hydrobromic acid (31.0 g, 48%, 0.18 mol) were stirred at 123° C. for 21 h. The flask was fitted with a sodium sulfite scrubber for containment of methyl bromide. The reaction mixture was worked up to give the product as a tan powder (1.0 g, 62% yield). 31P NMR: (d6-DMSO) δ 27.9 (s).

Quellen und Nachweise

ORD-Eintrag
ord-bf6cd4a895e74c039733679303066ab6
Quelldatensatz
uspto-grants-2005_10
Patentnummer
US06955851B2

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