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Cyclic carbonyl ylide formation from the rhodium (II) acetate catalyzed reaction of 1-diazoalkanediones

✍ Scribed by Albert Padwa; Richard L. Chinn; Susan F. Hornbuckle; Lin Zhi

Publisher
Elsevier Science
Year
1989
Tongue
French
Weight
293 KB
Volume
30
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

✦ Synopsis

Treatment of 1-diazoalkanediones with rhodium (II) acetate results in cyclization of the intermediate rhodium carbenoid to give a cyclic carbonyl ylide which readily undergoes bimolecular dipolar cycloaddition with various dipolarophiles. a-Diazoketones are valuable synthetic intermediates, with considerable utility in the

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On the rhodium catalyzed formation of ac
On the rhodium catalyzed formation of acetic acid from methyl formate β€” comparison with the rhodium catalyzed formation of acetic acid by direct carbonylation of methanol
✍ G. Bub; H.-U. HΓΆg πŸ“‚ Article πŸ“… 1995 πŸ› Elsevier Science 🌐 English βš– 662 KB

In presence of the homogenous Rh/Cr/I catalyst system methyl formate can be isomerized to acetic acid under CO-pressure with high conversion rates and excellent selectivity. This catalyst system has never been applied before for this reaction.