109613-00-5Relevant articles and documents
Solvent effect on palladium-catalyzed cross-coupling reactions and implications on the active catalytic species
Proutiere, Fabien,Schoenebeck, Franziska
, p. 8192 - 8195 (2011)
Suzuki coupling of the bifunctional substrate 1 using [Pd 2(dba)3]/PtBu3 gives selectivity for C-Cl in nonpolar solvents but for C-OTf in polar solvents. The results of computational and experimental studies suggest that the catalytically active species in polar solvents under conditions employing coordinating additives is inconsistent with monoligated [Pd(PtBu3)]. Instead, the data are consistent with an anionic palladium complex as the active species.
Discovery and optimisation of a selective non-steroidal glucocorticoid receptor antagonist
Brown, Angus R.,Bosies, Michael,Cameron, Helen,Clark, John,Cowley, Angela,Craighead, Mark,Elmore, Moira A.,Firth, Alistair,Goodwin, Richard,Goutcher, Susan,Grant, Emma,Grassie, Morag,Grove, Simon J.A.,Hamilton, Niall M.,Hampson, Hannah,Hillier, Alison,Ho, Koc-Kan,Kiczun, Michael,Kingsbury, Celia,Kultgen, Steven G.,Littlewood, Peter T.A.,Lusher, Scott J.,MacDonald, Susan,McIntosh, Lorraine,McIntyre, Theresa,Mistry, Ashvin,Morphy, J. Richard,Nimz, Olaf,Ohlmeyer, Michael,Pick, Jack,Rankovic, Zoran,Sherborne, Brad,Smith, Alasdair,Speake, Michael,Spinks, Gayle,Thomson, Fiona,Watson, Lynn,Weston, Mark
, p. 137 - 140 (2011)
High-throughput screening of 3.87 million compounds delivered a novel series of non-steroidal GR antagonists. Subsequent rounds of optimisation allowed progression from a non-selective ligand with a poor ADMET profile to an orally bioavailable, selective, stable, glucocorticoid receptor antagonist.
Convenient synthesis of aromatic thiols from phenols
Arnould, Jean Claude,Didelot, Myriam,Cadilhac, Caroline,Pasquet, Marie Jeanne
, p. 4523 - 4524 (1996)
Aromatic thiols were synthesised from phenols in good yield and under mild conditions by reaction of the corresponding triflates with sodium triisopropylsilanethiolate (NaSTIPS) and subsequent deprotection.
Nickel-Catalyzed Arylation/Alkenylation of tert-Cyclobutanols with Aryl/Alkenyl Triflates via a C - C Bond Cleavage
Wang, Zhen,Hu, Yuanyuan,Jin, Hongwei,Liu, Yunkui,Zhou, Bingwei
, p. 466 - 474 (2020/12/22)
Herein, we first present a nickel-catalyzed arylation and alkenylation of tert-cyclobutanols with aryl/alkenyl triflates via a C-C bond cleavage. An array of γ-substituted ketones was obtained in moderate-to-good yields, thus featuring earth-abundant nick
Ni-Catalyzed Cross-Electrophile Coupling of Aryl Triflates with Thiocarbonates via C-O/C-O Bond Cleavage
Zhu, Zhaodong,Gong, Yuxin,Tong, Weiqi,Xue, Weichao,Gong, Hegui
supporting information, p. 2158 - 2163 (2021/04/05)
A nickel-catalyzed reductive coupling of aryl triflates with thiocarbonates is reported here. Both electron-rich and -deficient aryl C(sp2)-O electrophiles as well as a class of O-tBu S-alkyl thiocarbonates are compatible with the optimized reaction conditions, as evidenced by 49 examples. The reaction also proceeds with good chemoselective cleavage of the C-O bond with regard to thioesters. This work broadens the scope of nickel-catalyzed reductive cross-electrophile coupling reactions.
Bismuth-Catalyzed Oxidative Coupling of Arylboronic Acids with Triflate and Nonaflate Salts
Cornella, Josep,Peciukenas, Vytautas,Planas, Oriol
supporting information, p. 11382 - 11387 (2020/07/14)
Herein we present a Bi-catalyzed cross-coupling of arylboronic acids with perfluoroalkyl sulfonate salts based on a Bi(III)/Bi(V) redox cycle. An electron-deficient sulfone ligand proved to be key for the successful implementation of this protocol, which allows the unusual construction of C(sp2)-O bonds using commercially available NaOTf and KONf as coupling partners. Preliminary mechanistic studies as well as theoretical investigations reveal the intermediacy of a highly electrophilic Bi(V) species, which rapidly eliminates phenyl triflate.
