Iron-catalysed, general and operationally simple formal hydrogenation using Fe(OTf)<sub>3</sub> and NaBH<sub>4</sub>
作者:Alistair J. MacNair、Ming-Ming Tran、Jennifer E. Nelson、G. Usherwood Sloan、Alan Ironmonger、Stephen P. Thomas
DOI:10.1039/c4ob00945b
日期:——
An operationally simple and environmentally benign formal hydrogenation protocol has been developed using a highly abundant iron(iii) salt and an inexpensive, bench stable, stoichiometric reductant, NaBH4, in ethanol, under ambient conditions.
the first time to synthesize pharmaceutically important α-aminoketonesfrom readily available benzylic secondary alcohols and amines using N-bromosuccinimide. This new reaction proceeds via three consecutive steps involving oxidation of alcohols, α-bromination of ketones, and nucleophilic substitution of α-bromo ketones to give α-aminoketones. Importantly, this novel one-pot greener reaction avoids
The rhodium-catalyzed deoxygenation and borylation of ketones with B2pin2 have been developed, leading to efficient formation of alkenes, vinylboronates, and vinyldiboronates. These reactions feature mild reaction conditions, a broad substrate scope, and excellent functional-group compatibility. Mechanistic studies support that the ketones initially undergo a Rh-catalyzed deoxygenation to give alkenes
Alkylation of Aldehyde (Arenesulfonyl)hydrazones with Trialkylboranes
作者:George W. Kabalka、John T. Maddox、Ekaterini Bogas、Shane W. Kelley
DOI:10.1021/jo962089q
日期:1997.5.1
(Arenesulfonyl)hydrazone derivatives of aryl aldehydes are readily alkylated by trialkylboranes in the presence of base to generate new organoboranes that may be converted to the corresponding substituted alkanes or alcohols depending upon the reaction conditions chosen. Both tosyl- and trisylhydrazone derivatives can be utilized in the reaction, which tolerates a variety of functional groups, making it a versatile alternative to both the Grignard and Suzuki-coupling reactions.
SUBSTITUTED ARYLCYCLOPENTENES AS THERAPEUTIC AGENTS
申请人:Donde Yariv
公开号:US20090270387A1
公开(公告)日:2009-10-29
Compounds comprising
or a pharmaceutically acceptable salt or a prodrug thereof, are disclosed, wherein Y, A, and B are as described.
Methods, compositions, and medicaments related thereto are also disclosed.