Topic
Norbornadiene
About: Norbornadiene is a research topic. Over the lifetime, 2389 publications have been published within this topic receiving 38603 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: Hybrid composed of 3-pentylnorbornadiene-2-carboxylic acid or its quadricyclane isomer molecules linked to methano-C60 fullerene via triethylene glycol spacer were synthesized by the Bingel-Hirsch reaction as mentioned in this paper.
TL;DR: In this paper, it was shown that the homologous catalyst supported on a phosphinated polystyrene is not active, and that the [RhCl(nbd)]2 (nbd = norbornadiene) is an efficient catalysts for the hydrogenation of arenes under mild conditions.
Abstract: Immobilized complexes prepared from [RhCl(nbd)]2 (nbd = norbornadiene) and phosphinated polydiacetylene or silica are efficient catalysts for the hydrogenation of arenes under mild conditions. However, the homologous catalyst supported on a phosphinated polystyrene is not active.
TL;DR: In this paper, the effect of various cyclic and bicyclic olefins on the yield (rate) and molecular weight of polyisobutene has been investigated, and the coefficients appear to be a function of ring size.
Abstract: The effect of various cyclic and bicyclic olefins on the yield (rate) and molecular weight of polyisobutene has been investigated. Cyclic olefins were found to be both rate poisons and transfer agents and the corresponding coefficients appear to be a function of ring size. Alkyl and aryl substitution on the ring increases both the poison and transfer coefficients. With bicyclic olefins, norbornene and norbornadiene both show moderate and similar poison coefficients, but only the former exhibits transfer activity. These coefficients have been discussed in terms of the allylic termination hypothesis and the known geometry and steric effects of the various rings studied.
Patent•
30 Jan 1986
TL;DR: In this article, a cyclodextrin clathrate compound of quadricyclene or a derivative thereof is dissolved, suspended or slurried in water, and the resultant solution, suspension or slurry is brought into contact with a catalyst, e.g., a complex of Ag, Rh, Pd or Co.
Abstract: PURPOSE:To isomerize the titled clathrate compound directly and advantageously to a cyclodextrin clathrate compound of norbornadiene useful as a photochemical thermal energy storage agent, by dissolving, suspending or slurrying the titled clathrate compound in water, and bringing the resultant solution, suspension or slurry into contact with a catalyst. CONSTITUTION:A cyclodextrin clathrate compound of quadricyclene or a derivative thereof is dissolved, suspended or slurried in water, and the resultant solution, suspension or slurry is brought into contact with a catalyst, e.g. a complex of Ag, Rh, Pd or Co, and isomerized to a cyclodextrin clathrate compound of norbornadiene or a derivative thereof. According to this method, the above- mentioned raw material in the form of the clathrate compound can be directly isomerized to the aimed compound, and therefore the energy saving effect is great. The water to be used as the solvent is inexpensive and safe, and the above-mentiond raw material in the above-mentioned solvent can be pumped. Thus, the cycle of taking out heat by the above-mentioned reaction, irradiating the clathrate compound with sunlight for return to the original compound can be continuously carried out, and the solar energy can be efficiently utilized.
TL;DR: Aryltin trichlorides undergo palladium-catalyzed arylstannylation of norbornene, giving a mixture of products composed of that taking one norbornen and that taking two norbornenes, depending on the choice of the solvent and electronic nature of the aromatic substituent as mentioned in this paper.
Abstract: Reagents containing carbon–tin–halogen inter-element linkages were effective for palladium-catalyzed carbostannylation. In situ generated allyltin trichlorides add to carbon–carbon double bonds of bicyclo[2.2.1]hept-2-ene (norbornene) and bicyclo[2.2.1]hepta-2,5-diene (norbornadiene), stereoselectively, under the catalysis of palladium(0) species in good yields. The regioselectivity of unsymmetrically substituted allylic reagents dramatically alters with the choice of the tin(II) salt. Aryltin trichlorides undergo palladium-catalyzed arylstannylation of norbornene, giving a mixture of products composed of that taking one norbornene and that taking two norbornenes. The product ratio is dependent on the choice of the solvent and electronic nature of the aromatic substituent.