Reaction of 2,5-bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone with phosphonoacetic acid trimethyl ester
It is known that the ease of the 1,5 migration of groups in cyclopentadienes is associated with their acceptor power. On the basis of this and in view of the tendency of phosphonoacetic acid triester to react at the C=O group of ..cap alpha..-enols (Wittig-Horner reaction), the authors studied the reactions of phosphonoacetic acid trimethyl ester with cyclones. 2,5-Bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone reacts with the sodium derivative of phosphonoacetic acid trimethyl ester with the formation of adducts in which the carbanion center of the reagent is linked to the C/sup 2/ atom of cyclopentadienone. The IR spectra were determined on a UR-10 spectrometer. The PMR spectra were recorded on Varian T-60 and Tesla BS-467A spectrometer, solvent CHCl/sub 3/ or CDCl/sub 3/, internal standard TMS.
- Research Organization:
- V. I. Ul'yanov-Lenin Kazan' State Univ. (USSR)
- OSTI ID:
- 7005374
- Journal Information:
- J. Gen. Chem. USSR (Engl. Transl.); (United States), Vol. 57:7; Other Information: Translated from Zh. Obshch. Khim.; 57: No. 7, 1498-1505(Jul 1987)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
74 ATOMIC AND MOLECULAR PHYSICS
ACETIC ACID ESTERS
ISOMERIZATION
NMR SPECTRA
KETONES
PHOSPHONIC ACID ESTERS
BINDING ENERGY
CHEMICAL REACTION KINETICS
CHEMICAL SHIFT
CHLOROFORM
COUPLING CONSTANTS
CYCLOPENTADIENE
DEUTERIUM COMPOUNDS
ELECTRONS
HYBRIDIZATION
INFRARED SPECTRA
J-J COUPLING
LINE WIDTHS
SPIN
STRUCTURAL CHEMICAL ANALYSIS
VALENCE
ALKENES
ANGULAR MOMENTUM
CARBOXYLIC ACID ESTERS
CHEMICAL REACTIONS
CHLORINATED ALIPHATIC HYDROCARBONS
COUPLING
CYCLOALKENES
DIENES
ELEMENTARY PARTICLES
ENERGY
ESTERS
FERMIONS
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROCARBONS
HYDROGEN COMPOUNDS
INTERMEDIATE COUPLING
KINETICS
LEPTONS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
PARTICLE PROPERTIES
POLYENES
REACTION KINETICS
SPECTRA
400201* - Chemical & Physicochemical Properties
640302 - Atomic
Molecular & Chemical Physics- Atomic & Molecular Properties & Theory