Inter- and Intramolecular C–H···O Bonding in the Anions of 1,3-Indandione Derivatives
✍ Scribed by Mark Sigalov; Pnina Krief; Lev Shapiro; Vladimir Khodorkovsky
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 804 KB
- Volume
- 2008
- Category
- Article
- ISSN
- 1434-193X
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## Abstract Treatment of the polyfunctional ylide Ph~3~P=C(H)C(O)CH~2~COOEt (1) with the solvated complexes [M(C^∧^X)(THF)~2~]ClO~4~ gave the __O__,__O′__ derivatives [M(C^∧^X)(Ph~3~PCH~2~C(__O__)=C(H)−C(=__O__)OEt‐κ‐__O__,__O′__]ClO~4~ [M(C^∧^X) = Pd(C~6~H~4~CH~2~NMe~2~) (2), Pd(CH~2~C~9~H~6~N) (3
17O, 13C and 1H NMR spectra for paraand meta-substituted 4-arylaminopent-3-en-2-ones (acyclic enaminones, 1 and 2) and 3-arylaminocyclohex-2-en-1-ones (cyclic enaminones, 3 and 4) are reported. The 17O, 13C and 1H shift values of these enaminones correlate well with and constants in the correlations