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Ziehe et al., 1999 - Google Patents

Diastereoselective Ring Expansion Rearrangements of (Benzocyclobutenone)‐and (Benzocyclobutenedione) chromium Complexes: Syntheses of Substituted 1 …

Ziehe et al., 1999

Document ID
4694779260125198054
Author
Ziehe H
Wartchow R
Butenschön H
Publication year
Publication venue
European journal of organic chemistry

External Links

Snippet

Organolithium and Grignard reagents add to the oxo group of (benzocyclobutenone) tricarbonylchromium (0)(1) diastereoselectively from the exo face of the organic ligand. If acyl anion equivalents are used as nucleophiles, deprotection of the carbonyl functions of …
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    • C07C45/72—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups
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