Reaktion #81389

Reaktionsgleichung

tetraethyl 2-[3-methoxy-4-hydroxy-1-naphthyl]ethane-1,1-diphosphonate

trimethylsilyl bromide

→

title compound

Ausbeute 67.0%

2-[3-Methoxy-4-hydroxy-1-naphthyl]ethane-1,1-diphosphonic Acid

Ausbeute 67.0%

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigehydrolysis

Vorschrift

Following the same method as described in Example 2, 7.12 g (15 mmol) of the tetraethyl 2-[3-methoxy-4-hydroxy-1-naphthyl]ethane-1,1-diphosphonate obtained in Example 11 was treated with trimethylsilyl bromide, and then hydrolysis was effected to obtain 3.64 g of the title compound as pale yellow crystals. The yield was m.p.: 231°-232° C. (dec)

Quelle