25836-50-4Relevant academic research and scientific papers
Nickel-catalyzed C-P cross-coupling reactions of aryl iodides with H-phosphinates
Kinbara, Atsushi,Ito, Momoko,Abe, Tohru,Yamagishi, Takehiro
, p. 7614 - 7619 (2015/09/07)
Synthesis of aryl phosphinates was achieved through cross-coupling reactions of aryl iodides with H-phosphinates catalyzed by nickel under mild conditions. The method was applicable to various aryl iodides and H-phosphinates having defined stereochemistry
Phosphorus-carbon bond formation: Palladium-catalyzed cross-coupling of H-phosphinates and other P(O)H-containing compounds
Berger, Olivier,Petit, Christelle,Deal, Eric L.,Montchamp, Jean-Luc
supporting information, p. 1361 - 1373 (2013/06/26)
Two generally applicable systems have been developed for the cross-coupling of P(O)H compounds with Csp2-X and related partners. Palladium catalysis using a ligand/additive combination, typically either xantphos/ethylene glycol or 1,1-bis(diphenylphosphino)ferrocene/1,2- dimethoxyethane, with diisopropylethylamine as the base, proved to be generally useful for the synthesis of numerous P-C containing compounds. Routinely, 2 mol% of catalyst are employed (less than half the amount typically employed in most other literature reports). In most cases, excellent results are obtained with a variety of electrophiles (RX, where R=alkenyl, allyl, alkynyl, etc.). The full account of our studies is disclosed, including tandem hydrophosphinylation/ coupling and coupling/coupling for doubly catalytic phosphorus-carbon bond formation. The methodology compares favorably with any existing literature report. The use of an additive appears to be a generally useful strategy to control the reactivity of phosphinylidene compounds. Copyright
NEUROLOGICALLY-ACTIVE COMPOUNDS
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Page/Page column 22, (2008/06/13)
The invention provides a compound of the formula (I): wherein R is methyl, ethyl, propyl, isopropyl, butyl, pentyl, neo-pentyl or cyclohexyl, or a salt or solvate thereof. These compounds are selective GABAC receptor antagonists. The invention also provides pharmaceutical compositions comprising a compound of formula (I) or a pharmaceutically acceptable salt or solvate thereof. The invention also provides methods of enhancing the cognitive activity of an animal and methods of stimulating memory capacity in an animal, comprising the step of administering to the animal an effective amount of a compound of formula (I) or a pharmaceutically acceptable salt or solvate thereof.
