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

Authors
Lim, S Min, Y Choi, B Kim, D Yoon, I Lee, SS Lee, IM
Citation
S. Lim et al., A new and efficient route for 1,3,3 '-triketones, TETRAHEDR L, 42(43), 2001, pp. 7645-7649
Citations number
27
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON LETTERS
ISSN journal
00404039 → ACNP
Volume
42
Issue
43
Year of publication
2001
Pages
7645 - 7649
Database
ISI
SICI code
0040-4039(20011022)42:43<7645:ANAERF>2.0.ZU;2-0
Abstract
Cyclic and acyclic 1,3,3'-triketones were prepared by the reactions adoptin g beta -diketones and anhydrides in the presence of barium or strontium hyd rides in high yields. Crystal structure of 4-acetyl-2,2,6,6-tetramethyl-3,5 -heptanedione (3a) represented the dorminant keto form and provided evidenc e for intermolecular C-H . . .O hydrogen bonds (average C . . .O distance; 3.437 Angstrom, average C-H . . .O angle. 169.25 degrees). (C) 2001 Elsevie r Science Ltd. All rights reserved.