Generation and alkylation of carbanions .alpha. to the nitrogen of amines by a new metallation procedure
摘要:
Treatment of a tertiary amine having a pendent o-iodobenzyl group on nitrogen with SmI2 generates alpha-amino organosamarium, which reacts with electrophiles giving the corresponding C-C bound formation products in good yield.
[EN] FUSED PYRAZOLE DERIVATIVES AS NOVEL ERK INHIBITORS<br/>[FR] DÉRIVÉS CONDENSÉS DE PYRAZOLE UTILISÉS COMME NOUVEAUX INHIBITEURS ERK
申请人:SCHERING CORP
公开号:WO2012036997A1
公开(公告)日:2012-03-22
Disclosed are the ERK inhibitors of Formula (I): (Formula (I)) and the pharmaceutically acceptable salts thereof. All substitutents are as defined herein. Also disclosed are methods of treating cancer using the compounds of Formula (I).
A rapid synthesis of various 9-aryl derivatives of quinine is presented. They are obtained via coupling reactions of functionalized arylmagnesium halides and 9-chloroquinine.
Synthetic use of the primary kinetic isotope effect in hydrogen atom transfer: generation of α-aminoalkyl radicals
作者:Mark E. Wood、Sabine Bissiriou、Christopher Lowe、Andrew M. Norrish、Katell Sénéchal、Kim M. Windeatt、Simon J. Coles、Michael B. Hursthouse
DOI:10.1039/c0ob00205d
日期:——
deuterium can act as a protecting group to prevent unwanted 1,5-hydrogen atom transfer to aryl and vinyl radical intermediates was examined in the context of the generation of α-aminoalkyl radicals in a pyrrolidine ring. Intra- and intermolecular radical trapping following hydrogen atom transfer provides an illustration of the use of the primary kinetic isotope effect in directing the outcome of synthetic
Samarium diiodide mediated alkylation of saturated heterocycles alpha to nitrogen
作者:Susan E. Booth、Tore Benneche、Kjell Undheim
DOI:10.1016/0040-4020(95)00081-i
日期:1995.3
A method for alpha-alkylation of saturated 5-, 6-, 7- and and 8-membered aza-heterocycles is described. The auxiliary is an o-iodobenzyl group attached at the nitrogen. A radical introduced in the o-position is transferred to the amine alpha-position which subsequently leads to an addition reaction with pentan-3-one.