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A new and efficient route for 1,3,3′-triketones

✍ Scribed by Sunkwon Lim; Yosep Min; Bohyun Choi; Daesig Kim; Il Yoon; Shim Sung Lee; Ik-Mo Lee

Publisher
Elsevier Science
Year
2001
Tongue
French
Weight
144 KB
Volume
42
Category
Article
ISSN
0040-4039

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✦ Synopsis

Cyclic and acyclic 1,3,3%-triketones were prepared by the reactions adopting b-diketones and anhydrides in the presence of barium or strontium hydrides in high yields. Crystal structure of 4-acetyl-2,2,6,6-tetramethyl-3,5-heptanedione (3a) represented the dorminant keto form and provided evidence for intermolecular C H•••O hydrogen bonds (average C•••O distance; 3.437 A , , average C H•••O angle; 169.25°).

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