4.4 Article

Two-Carbon Ring-Enlargement of Cyclic 1,3-Diketones to Cyclic 1,5-Diketones

Journal

SYNLETT
Volume 31, Issue 12, Pages 1201-1204

Publisher

GEORG THIEME VERLAG KG
DOI: 10.1055/s-0040-1707862

Keywords

ring enlargement; cyclic 1,3-diketone; cyclic 1,5-diketone; mono-vinylation; potassium tert-butoxide

Funding

  1. Japan Society for the Promotion of Science (JSPS KAKENHI) [19K05473]
  2. Kanazawa University SAKIGAKE project
  3. Grants-in-Aid for Scientific Research [19K05473] Funding Source: KAKEN

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3-Hydroxy-3-vinylcycloalkanones, which were prepared from the corresponding cyclic 1,3-diketories by mono-vinylation, were rearranged to two-carbon ring enlarged cyclic 1,5-diketones by treatment with a catalytic amount of potassium tert-butoxide.

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