Carbon−Carbon Bond Formation and Pyrrole Synthesis via the [3,3] Sigmatropic Rearrangement of <i>O</i>-Vinyl Oxime Ethers
作者:Heng-Yen Wang、Daniel S. Mueller、Rachna M. Sachwani、Hannah N. Londino、Laura L. Anderson
DOI:10.1021/ol100659q
日期:2010.5.21
A new method for the synthesis of 2,4- and 2,3,4-substituted pyrroles in two or three steps from commercially available ketones and allyl hydroxylamine is described. An iridium-catalyzed isomerization reaction has been developed to convert O-allyl oximes to O-vinyl oximes, which undergo a facile [3,3] rearrangement to form 1,4-imino aldehyde Paal−Knorr intermediates that cyclize to afford the corresponding
[EN] BICYCLIC KINASE INHIBITORS<br/>[FR] INHIBITEURS BICYCLIQUES D'UNE KINASE
申请人:F.HOFFMANN-LA ROCHE AG
公开号:WO1999020624A1
公开(公告)日:1999-04-29
(EN) The present invention relates to compounds of Formula (I) that are p-38 MAP kinase inhibitors, pharmaceutical compositions containing them, their use, a process for preparing these compounds and intermediates useful in this process.(FR) Cette invention, ayant trait à des composés correspondant à la formule (I) qui sont des inhibiteurs de la protéine-kinase p-38 associée aux membranes (p-38 MAP kinase), concerne également des préparations pharmaceutiques les contenant, leur utilisation ainsi qu'un procédé de production de ces composés et des intermédiaires entrant dans le cadre du procédé.
Aerobic Synthesis of Pyrroles and Dihydropyrroles from Imines: Palladium(II)-Catalyzed Intramolecular CH Dehydrogenative Cyclization
作者:Zhuangzhi Shi、Mamta Suri、Frank Glorius
DOI:10.1002/anie.201300477
日期:2013.4.26
sp3ectacularly mild! An efficient PdII‐catalyzed intramoleculardehydrogenativecyclization of imines affords (dihydro)pyrrole products using molecular oxygen as the sole oxidant. This mild formal sp3‐CH functionalization allows rapid and atom‐economical assembly of (dihydro)pyrrole rings from inexpensive and readily available allylamines and ketones. A broad range of functional groups are tolerated