- NOVEL FLUORINE-CONTAINING DIAMINE AND FLUORINE-CONTAINING DINITRO COMPOUND, AND FLUORINE-CONTAINING POLYAMIC ACID AND FLUORINE-CONTAINING POLYIMIDE INCLUDING THE SAME
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To provide a fluorine-containing diamine for synthesizing a novel fluorine-containing polyimide having a low dielectric constant and a high glass transition point.SOLUTION: The present invention provides a fluorine-containing diamine represented by formul
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Paragraph 0285-0288
(2019/05/15)
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- BrettPhos ligand supported palladium-catalyzed C-O bond formation through an electronic pathway of reductive elimination: Fluoroalkoxylation of activated aryl halides
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We report an unprecedented BrettPhos ligand supported Pd-catalyzed C-O bond-forming reaction of activated aryl halides with primary fluoroalkyl alcohols. We demonstrate that the Phosphine ligand (BrettPhos) possesses the property of altering the mechanistic pathway of reductive elimination from nucleophile to nucleophile. The Pd/BrettPhos catalyst system facilitates the reductive elimination of the oxygen nucleophile through an electronic pathway.
- Rangarajan,Singh, Rajendra,Brahma, Raju,Devi, Kavita,Singh, Rishi Pal,Singh,Prasad, Ashok K.
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supporting information
p. 14218 - 14225
(2015/01/09)
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- 1,3-Diamino-4-(2',2',2',-trifluoroethoxy)-benzene, method of producing the same, and hair coloring composition containing the same
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1,3-diamino-4-(2',2',2'-trifluoroethoxy)-benzene, as well as its acid addition salts, are used as new compounds to serve as coupler substance in hair dyeing compositions and yields with known developer substances 1,4-diaminobenzene and 2,5-diaminobenzylal
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