o-Quinonoid compounds. Part II. 1,4-Diphenyl-2-benzopyran-3-one and its iron carbonyl complexes
作者:J. M. Holland、D. W. Jones
DOI:10.1039/j39700000530
日期:——
1,4-Diphenyl-2-benzopyran-3-one is prepared by dehydration–rearrangement of 1,3-dihydroxy-1,3-diphenyl-indian-2-one and by dehydration of o-benzoylphenyl(phenyl)acetic acid. The reactions of the pyrone and its conversion into related o-quinonoidcompounds are described. The interconvertible ironcarbonylcomplexes of the pyrone are prepared by reaction with dodecacarbonyltri-iron. The role of metal–ligand
Kiselev, V. D.; Sakhabutdinov, A. G.; Shakirov, I. M., Journal of Organic Chemistry USSR (English Translation), 1991, vol. 27, # 8.1, p. 1437 - 1443
作者:Kiselev, V. D.、Sakhabutdinov, A. G.、Shakirov, I. M.、Konovalov, A. I.
DOI:——
日期:——
Konovalov,A.I.; Solomonov,B.N., Journal of Organic Chemistry USSR (English Translation), 1975, vol. 11, p. 2178 - 2182
作者:Konovalov,A.I.、Solomonov,B.N.
DOI:——
日期:——
CAVA M. P.; MCGRADY J., J. ORG. CHEM. <JOCE-AH>, 1975, 40, NO 1, 72-77
作者:CAVA M. P.、 MCGRADY J.
DOI:——
日期:——
The nature of lithium perchlorate and gallium chloride salt effect in cycloaddition reactions
作者:Yury G. Shtyrlin、Dmitry G. Murzin、Natalia A. Luzanova、Gulnara G. Iskhakova、Vladimir D. Kiselev、Alexandr I. Konovalov
DOI:10.1016/s0040-4020(98)00025-8
日期:1998.3
acceleration effect of cycloadditionreactions in the presence of such Lewis acids as aluminum, gallium or boron halides is due to the sharp increase of π-acceptor properties of dienophiles and therefore increasing energy of orbital interaction, whereas LPDE medium demonstrates strong stabilization of static and/or dynamic polar forms and favors reactions with chargecontrol.