Reaction of β-Trimethylsiloxy α-Diazocarbonyl Compounds with Trimethylsilyl Halides: A Novel Diazo Decomposition Process.

A Novel Access to Ionone-Type Compounds:

A Novel Access to Ionone-Type Compounds: (E)-4-oxo-β-ionone and (E)Oxo-β-irone via metal-catalyzed intramolecular reactions of α-diazo ketones with furans

✍ Ernest Wenkert; René Decorzant; Ferdinand Näf 📂 Article 📅 1989 🏛 John Wiley and Sons 🌐 German ⚖ 693 KB

Dedicated to Dr. G. Ohlogon the occasion of his 65th birthday (5.IV. 89) (E)-5-Demethyl-4-oxo-~-ionone (2), (E)-4-oxo-p-ionone (3), (E)-.l-oxo-p-irone (4), and the five-membered ring analogs 36-41 were synthesized by a novel, convergent route starting from 2-methylfuran (1). A recently discovered, i