[EN] AZEPINE-TYPE FUSED RING COMPOUND AND PHARMACEUTICAL USE THEREOF<br/>[FR] COMPOSÉ À CYCLE FUSIONNÉ DU TYPE AZÉPINE ET SON UTILISATION PHARMACEUTIQUE<br/>[ZH] 氮杂卓类稠环化合物及其医药用途
申请人:THE NAT INSTITUTES OF PHARMACEUTICAL R&D CO LTD
Silver-Promoted, Palladium-Catalyzed Direct Arylation of Cyclopropanes: Facile Access to Spiro 3,3′-Cyclopropyl Oxindoles
作者:Carolyn L. Ladd、Daniela Sustac Roman、André B. Charette
DOI:10.1021/ol4003338
日期:2013.3.15
The Pd-catalyzed, Ag(I)-mediated intramolecular direct arylation of cyclopropane C H bonds is described. Various spiro 3,3'-cyclopropyl oxindoles can be obtained in good to excellent yields from easily accessible 2-bromoanilides. The kinetic isotope effect was determined and epimerization studies were conducted, suggesting that the formation of a putative Pd-enolate is not operative and that the reaction proceeds via a C-H arylation pathway.
A novel synthesis of spirocyclic pyrrolidin-2-ones
作者:John M.D Storey
DOI:10.1016/s0040-4039(00)01426-x
日期:2000.10
A short synthesis of a series of spirocyclic pyrrolidin-2-ones is presented which proceeds via initial [1,5]-radical translocation followed by cyclisation. (C) 2000 Elsevier Science Ltd. All rights reserved.