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Methodologies for 2-alkylidene-1,3-cyclopentanediones

✍ Scribed by Philip E. Eaton; William H. Bunnelle

Book ID
104242328
Publisher
Elsevier Science
Year
1984
Tongue
French
Weight
209 KB
Volume
25
Category
Article
ISSN
0040-4039

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✦ Synopsis

Methods for the synthesis of 2-alkylidene-1,3-cyclopentanediones are given along withe preliminary information on the reactivity of these ene-diones. Simple 2-alkylidene-1,3-cyclopentanediones are little known. Singular examples in which the exocyclic double bond is stabilized by heteroatom substitution or by conjugation with aromatic or extended systems have been mentioned; 1.

simpler "stripped down 'I derivatives of this ene-dione system are exceedingly rare.

πŸ“œ SIMILAR VOLUMES

Synthesis of 2-methyl-1,3-cyclopentanedi
Synthesis of 2-methyl-1,3-cyclopentanedione monoethylene ketal
✍ Tony Volpe; Gilbert Revial; Michel Pfau; Jean d'Angelo πŸ“‚ Article πŸ“… 1986 πŸ› Elsevier Science 🌐 French βš– 111 KB

Direct ketalization of 2-methyl-1,3-cyclopentanedione 3 led to the corresponding diethylene ketal 2. Carefully controlled hydrolysis of compound 2 afforded the monoethylene ketal 1 in high yield.

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