Preparation of Benzolactams by Pd(OAc)2-Catalyzed Direct Aromatic Carbonylation
摘要:
We developed a new method for Pd(II)-catalyzed direct aromatic carbonylation in a phosphine-free catalytic system using Pd(OAc)2 and Cu(OAc)2 in an atmosphere of CO gas containing air. The carbonylation proceeded with ortho-palladation, inducing a remarkable site selectivity to afford a variety of five- or six-membered benzolactams from secondary omega-arylalkylamines, such as N-alkylbenzylamines or N-alkylphenethylamines.
[EN] PHENETHYLAMIDE DERIVATIVES AND THEIR HETEROCYCLIC ANALOGUES<br/>[FR] DÉRIVÉS DE PHÉNÉTHYLAMIDE ET LEURS ANALOGUES HÉTÉROCYCLIQUES
申请人:ACTELION PHARMACEUTICALS LTD
公开号:WO2010044054A1
公开(公告)日:2010-04-22
The invention relates to novel phenethylamide derivatives and their heterocyclic analogues of formula (I), wherein A, B, R1, R2 and R3 are as described in the application, and to the use of such compounds, or of pharmaceutically acceptable salts of such compounds, as medicaments, especially as orexin receptor antagonists.
Process for the production of isoindoline derivatives, novel intermediates and process for their production
申请人:Banyu Pharmaceutical Co., Ltd.
公开号:EP0275064A2
公开(公告)日:1988-07-20
A process for producing a compound of the formula:
wherein R¹ is a hydrogen atom, a lower alkyl group or an aralkyl group, and R² is a hydrogen atom or a hydroxyl-protecting group, or a salt thereof, which comprises removing from a compound of the formula:
wherein R³ is a hydrogen atom or a hydroxyl-protecting group, R⁴ and R⁵ which may be the same or different are N-protecting groups selected from the group consisting of lower alkyl groups and aralkyl groups, and X⊖ is an anion, the N-protecting group(s), if necessary, together with the hydroxyl-protecting group.