ChemInform Abstract: Diene Condensation of Polychlorocyclic Dienes with Dienophiles of Allylacetylene Series.

Abstract

2001 cycloaddition reactions cycloaddition reactions O 0070 -043Diene Condensation of Polychlorocyclic Dienes with Dienophiles of Allylacetylene Series.-Cycloaddition of allylacetylenes (II) to polychlorocyclopentadienes (I) proceeds chemoselectively at the allyl double bond and with excellent diastereofacial selectivity to furnish the endo-propargyl adducts (III) in moderate to good yields. Some transformations of the adducts are studied. Reduction with Zn-Cu proceeds chemo-and stereoselectively to give E-allyl-substituted bicycloheptenes (VII). Favorsky decomposition of the tertiary alcohols in the side chain of compounds (III) can be selectively directed towards formation of the ethynyl [cf. (IV)] or allenyl group [cf. (V)]. -(VELIEV, M. G.; CHALOBIEVA, A. Z.; SHATIROVA, M. I.; MAMEDOV, E. SH.; MAMEDOV, I. M.; Russ.

Synthesis of New Halogen-Containing Norbornene Adducts Based on N-Substituted Imides of 2,3-Dichlorbicyclo [2.2.1] Hept-5-ene-2,3- Dicarboxylic Acids and Hexachlorocyclopentadiene

“…Polychlorocyclic compounds containing functional groups in the side chain have a variety of biological and physiological effects [1][2][3][4][5][6][7][8][9][10], are used as flame retardants to increase the fire resistance of polymeric materials [4,10], are of interest as synthones in the purposeful synthesis of many classes of organic and element organic compounds [11][12][13][14].…”