2-Pyridylmethyl ether: a readily removable and efficient directing group for amino acidligand accelerated ortho-C–H olefination of phenols
作者:Xuefeng Cong、Jingsong You、Ge Gao、Jingbo Lan
DOI:10.1039/c2cc37291f
日期:——
2-Pyridylmethyl ether-directed ortho-C-H olefination of phenols via a seven-membered cyclopalladated intermediate has been disclosed to construct a variety of ortho-alkenyl phenols and ortho-alkyl phenols.
Highly Enantioselective Hydrogenation of Amides via Dynamic Kinetic Resolution Under Low Pressure and Room Temperature
作者:Loorthuraja Rasu、Jeremy M. John、Elanna Stephenson、Riley Endean、Suneth Kalapugama、Roxanne Clément、Steven H. Bergens
DOI:10.1021/jacs.6b12254
日期:2017.3.1
High-throughput screening and lab-scale optimization were combined to develop the catalytic system trans-RuCl2((S,S)-skewphos)((R,R)-dpen), 2-PrONa, and 2-PrOH. This system hydrogenates functionalized α-phenoxy and related amides at room temperature under 4 atm H2 pressure to give chiralalcohols with up to 99% yield and in greater than 99% enantiomericexcess via dynamic kinetic resolution.
Chemoselective palladium-catalyzed deprotonative arylation/[1,2]-Wittig rearrangement of pyridylmethyl ethers
作者:Feng Gao、Byeong-Seon Kim、Patrick J. Walsh
DOI:10.1039/c5sc02739j
日期:——
and reaction temperature play a pivotal role in tuning the reactivity of intermediates and controlling the relative rates of competing processes. The novel arylation step is catalyzed by a Pd(OAc)2/NIXANTPHOS-based system via a deprotonativecross-couplingprocess. The method provides rapid access to skeletally diverse aryl(pyridyl)methanol core structures, which are central components of several medications
Sulfonyl isatin compounds and methods of blocking apoptosis therewith
申请人:SmithKline Beecham Corporation
公开号:US06403792B1
公开(公告)日:2002-06-11
The present invention is to novel sulfonyl isatin compounds of Formula (I), their pharmaceutical compositions, and the novel inhibition of caspases for use in the treatment of apoptosis, and disease states caused by excessive or inappropriate cell death.
[EN] PROBES FOR DETECTION OF COPPER<br/>[FR] SONDES POUR LA DÉTECTION DE CUIVRE
申请人:UNIV CALIFORNIA
公开号:WO2020226972A1
公开(公告)日:2020-11-12
The present disclosure provides Förster resonance energy transfer (FRET)-based probes for detecting copper, e.g., for detecting Cu(I) in live cells. The present disclosure provides methods for detecting copper, e.g., for detecting Cu(I) in live cells, using a FRET-based probe of the present disclosure.