A cobalt complex, [CoCl2(dpph)] (DPPH = [1,6-bis(diphenylphosphino)hexane]), catalyzes an intermolecular styrylation reaction of alkyl halides in the presence of Me3SiCH2MgCl in ether to yield beta-alkylstyrenes. A variety of alkyl halides including alkyl chlorides can participate in the styrylation. A radical mechanism is strongly suggested for the styrylation reaction. The sequential isomerization/styrylation
[EN] SILANOL DERIVATIVES AS INHIBITORS OF HISTONE DEACETYLASE<br/>[FR] DERIVES DE SILANOL EN TANT QU'INHIBITEURS D'HISTONE DEACETYLASE
申请人:AXYS PHARM INC
公开号:WO2006069096A1
公开(公告)日:2006-06-29
[EN] The present invention is directed to certain silanol derivatives that are inhibitors of histone deacetylase and are therefore useful in the treatment of diseases associated with histone deacetylase activity. Pharmaceutical compositions and processes for preparing these compounds are also disclosed. [FR] L'invention concerne certains dérivés de silanol qui sont des inhibiteurs d'histone déacétylase et qui sont par conséquent utiles dans le traitement de maladies associées à l'activité de l'histone déacétylase. L'invention concerne également des compositions pharmaceutiques et des procédés de préparation de ces composés.
Cobalt-Catalyzed Heck-Type Reaction of Alkyl Halides with Styrenes
A cobalt complex, CoCl2[1,6-bis(diphenylphosphino)hexane], catalyzes an alkylation reaction of styrenes in the presence of Me3SiCH2MgCl in ether to yield beta-alkylstyrenes. A variety of alkyl halides including alkyl chlorides can be employed as an alkyl source. A radical mechanism is strongly suggested for this alkylation reaction.