82461-15-2Relevant articles and documents
Radical Aryl Migration from Boron to Carbon
Daniliuc, Constantin G.,Mück-Lichtenfeld, Christian,Studer, Armido,Wang, Dinghai
, p. 9320 - 9326 (2021/07/19)
Radical aryl migration reactions represent a unique type of organic transformations that involve the intramolecular migration of an aryl group from a carbon or heteroatom to a C- or heteroatom-centered radical through a spirocyclic intermediate. Various elements, including N, O, Si, P, S, Sn, Ge, and Se, have been reported to participate in radical aryl migrations. However, radical aryl migration from a boron center has not been reported to date. In this communication, radical 1,5-aryl migration from boron to carbon in aryl boronate complexes is presented. C-radicals readily generated through radical addition onto alkenyl aryl boronate complexes are shown to engage in 1,5-aryl migration reactions to provide 4-aryl-alkylboronic esters. As boronate complexes can be generatedin situby the reaction of alkenylboronic acid esters with aryl lithium reagents, the aryl moiety is readily varied, providing access to a series of arylated products starting from the same alkenylboronic acid ester via divergent chemistry. Reactions proceed with high diastereoselectivity under mild conditions, and also the analogous 1,4-aryl shifts are feasible. The suggested mechanism is supported by DFT calculations.
Decarboxylative allylations of ester enolate equivalents
Ariyarathna, Yamuna,Tunge, Jon A.
supporting information, p. 8386 - 8389 (2014/12/10)
A variety of ester enolate equivalents are generated in situ and undergo α-allylation in high yields via palladium-catalyzed decarboxylative allylation. The transformations are complete within very short reaction times under ambient conditions. Synthesis of α-allylated acyl derivatives provides access to other carboxylic acid and alcohol derivatives via acyl group substitution or reduction. This journal is
1,1,1-TRIFLUORO-4-PHENYL-4-METHYL-2-(1H-PYRROLO
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Page/Page column 211-212, (2010/02/11)
Compounds of Formula (IA), IB), IC), and (ID) wherein R1, R2, R3, R4, R5, and R6 are as respectively defined herein for Formula (IA), (IB), (IC), and (ID), or a tautomer, prodrug, solvate, or salt thereof; pharmaceutical compositions containing such compounds, and methods of modulating the glucocorticoid receptor function and methods of treating disease-states or conditions mediated by the glucocorticoid receptor function or characterized by inflammatory, allergic, or proliferative processes in a patient using these compounds.