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Norbornadiene
About: Norbornadiene is a research topic. Over the lifetime, 2389 publications have been published within this topic receiving 38603 citations.
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TL;DR: The back isomerization of 2b to 1b proceeds quantitatively by the use of catalytic amounts of Rh2(CO)4Cl2 as mentioned in this paper, which is the same as the catalytic amount used in this paper.
Abstract: 3-Phenylcarbamoyl-2,5-norbornadiene-2-carboxylic acid (1b) undergoes a facile and quantitative isomerization into the corresponding quadricyclane derivative (2b) under sunlight. The back isomerization of 2b to 1b proceeds quantitatively by the use of catalytic amounts of Rh2(CO)4Cl2.
Patent•
21 Nov 2013
TL;DR: A method of preparation of porogen composition comprising for 100% by weight was proposed in this article, where at least 99.5% of norbornadiene was extracted by extractive distillation and a nitroxyl radical based stabilizer was used.
Abstract: A method of preparation of a porogen composition comprising for 100% by weight:
- at least 99,5% by weight of norbornadiene;
- from 10 ppm to 500 ppm by weight of a nitroxyl radical based;
- from 250 ppb to 10 ppm by weight of benzene,
said method comprising:
step a) providing a benzene containing norbornadiene solution comprising more than 100 ppm of benzene,
step b) separating the benzene from norbornadiene by extractive distillation,
step c) adding to the norbornadiene solution issued from step b) a nitroxyl radical based stabilizer.
TL;DR: In this article, photolysis of 2,3-diphenylnaphthoquinone oxide resulted in carbon-carbon bond cleavage to give a seven-membered mesoionic benz[d]oxepine-1,5-dione intermediate, which was trapped by Nphenylmaleimide and norbornadiene.
Abstract: Photolysis of 2,3-diphenylnaphthoquinone oxide resulted in carbon–carbon bond cleavage to give a seven-membered mesoionic benz[d]oxepine-1,5-dione intermediate, which was trapped by N-phenylmaleimide and norbornadiene.
TL;DR: A three-component coupling reaction of organic halides, including aryl halide, methyl iodine, alkenyl iodine and bromoalkynes, with norbornadiene and terminal alkynes catalyzed by a palladium complex and a phase transfer agent in the presence of aqueous NaOH gave 5,6-disubstituted norbornene derivatives in good yields as discussed by the authors.
Abstract: A three-component coupling reaction of organic halides, including aryl halides, methyl iodine, alkenyl iodine and bromoalkynes, with norbornadiene and terminal alkynes catalyzed by a palladium complex and a phase transfer agent in the presence of aqueous NaOH gave 5,6-disubstituted norbornene derivatives in good yields
TL;DR: Norbornadiene reacts with aryl or benzyl halides in the presence of palladium complexes, zinc powder and water to give the corresponding substituted nortricyclenes in good yields as discussed by the authors.
Abstract: Norbornadiene reacts with aryl or benzyl halides in the presence of palladium complexes, zinc powder and water to give the corresponding substituted nortricyclenes in good yields.