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L. Toupet 《Acta Crystallographica. Section C, Structural Chemistry》1983,39(6):753-756
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The regioselectivity and stereoselectivity of the photochemical addition of nitrenes to 1 and 2 and the alcoholysis or hydrolysis of inter mediates aziridines were studied. These reactions are regiospecific and strongly stereoselective to give aminoketals or aminoacetals. 相似文献
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MM. J. Duflos D. Letouz G. Queguiner P. Pastour 《Journal of heterocyclic chemistry》1973,10(6):1083-1084
This communication describes the synthesis of l-methyl-2,3-diformylpyrrole. This new compound is used to prepare a new heterocycle, l-methylcyclohepta[b]pyrrol-6-one and thus allows a new synthesis of l-methylpyrrolo[2,3-d]pyridazine. 相似文献
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Benzoylation and acétylation of 3-methyl-fluorene according to Friedel-Crafts in carbon disulfide with aluminium chloride yielded the corresponding 2-acyl derivatives. By oxidation the benzoyl derivative gave 2-benzoyl-9-oxo-fluorene-3-carboxylic acid, cychsable into the known 2,3-phthalyl-fluorenone. By Clemmensen reduction, the acetyl derivative gave 3-methyl-2-ethyl-fluorene. 相似文献
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Ren Dolmazon 《Journal of heterocyclic chemistry》1988,25(3):751-757
Synthetic route to new cis-perhydrocyclopenta[b]furan-3-ones and cis-perhydrocyclopenta[b]furan-3-ols is described. Their configurations and conformations were inferred by 1H and 13C nmr spectroscopy. A certain rigidity is associated with the bond common to the two fused ring. The conformation of tetrahydrofuran-3-one ring appears to be a composite of the C, and C2 forms depending on the C-2 substitution. 相似文献
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