Theoretical Study of Diels -Alder Reactions of Furan and its some Derivatives with Maleic Anhydride in Gas Phase


Abstract in English

The Diels - Alder reactions of furan and some derivatives with maleic anhydride have been studied using methods of density functional theory (DFT): B3LYP, B3PW91, MPW1PW91 and MPW1BPE with 6-31g(d) bases set and proceeding energy cor-relation at MP4 level of theory with same bases set. The results of this study showed that, for the Diels - Alder reaction of Furan and 2-methyl furan with maleic anhydride, the reaction of formation of exo-adduct proceeds under thermodynamical control, and the reaction of formation of endo-adduct proceeds under kinatic control, but for the 2-furylmethanol, 2- furylmethyl acetate and 2-furylmethyl benzoate, the reactions of formation of exo-adduct proceed under thermodynamical and kinetic controls. The MPW1BPE/6-31g(d) level of theory was advanced susceptible results by comparison with the reference experimental data; exactly for furan-maleic anhydride Diels - Alder reaction.

References used

CARRUTHERS W. "Cycloaddition Reactions in Organic Synthesis". Pergamon Press: New York, 1990
DINADAYALANE T. C.; VIJAYA R.; SMITHA A. and NARAHARI G. S. "Diels-Alder Reactivity of Butadiene and Cyclic Five-Membered Dienes ((CH)4X, X)CH2, SiH2, O, NH, PH, and S) with Ethylene": A Benchmark Study. J. Phys. Chem. 2002, A, 106, p.p. 1627-1633
JURSIC B. S. "The Importance of Secondary Orbital Interactions in the Stabilization of Isomeric Transition State Structures in the Cyclopropene Addition to Furan". Tetrahedron Lett. 1997, 38, 1305

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