Die Einwirkung von Chlor und Brom auf die Oxymercurierungsprodukte des Norbornens

✍ Scribed by Erich Tobler; Donald J. Foster

• Publisher: John Wiley and Sons
• Year: 1965
• Tongue: German
• Weight: 665 KB
• Volume: 48
• Category: Article
• ISSN: 0018-019X
• DOI: 10.1002/hlca.19650480215

✦ Synopsis

HELVETICA CHIMICA ACTA transform indicaxanthin into betanidin (11) by a base exchange with 5,6-dihydroxy-

2,3-dihydroindole-2S-carboxylic acid (V) .

The functional fragment common to the betacyanins and the betaxanthins is tbetalamic acid)) (VIII). An argument is presented for considering betalamic acid to be of special biochemical significance in certain plants of the centrospermae group.