[EN] A METHOD OF PRODUCTION OF (-)-(S)-3-[1-(DIMETHYLAMINO)ETHYL]PHENYL-N-ETHYL-N-METHYLCARBAMATE<br/>[FR] PROCEDE DE PRODUCTION DE (-)-(S)-3-[1-(DIMETHYLAMINO)ETHYL]PHENYL-N-ETHYL-N-METHYLCARBAMATE
申请人:ZENTIVA AS
公开号:WO2004037771A1
公开(公告)日:2004-05-06
The compound of formula (III), optionally its alkaline salt, is reacted with a compound of formula VII, wherein X is a leaving group, resulting in (S)-rivastigmine of formula II, which is then optionally converted into (S)-rivastigmine hydrogentartrade of formula I.
PERFLUOROALLYLOXY COMPOUND AND LIQUID CRYSTAL COMPOSITION CONTAINING THE COMPOUND
申请人:Shinano Hirokatsu
公开号:US20050161637A1
公开(公告)日:2005-07-28
A novel perfluoroallyloxy compound represented by general formula (I) and a liquid crystal composition containing the compound are disclosed. The perfluoroallyloxy compound is useful as a liquid crystal material.
[EN] PROCESS FOR THE PREPARATION OF OPTICALLY ACTIVE COMPOUNDS USING TRANSFER HYDROGENATION<br/>[FR] PROCÉDÉ DE PRÉPARATION DE COMPOSÉS OPTIQUEMENT ACTIFS PAR HYDROGÉNATION PAR TRANSFERT
申请人:NOVARTIS AG
公开号:WO2010072798A1
公开(公告)日:2010-07-01
A catalytic process for the preparation of optically active compounds and their conversion thereafter to desired drag substances. In particular, the process relates to the preparation of (S)-3-(1-Dimethylamino-ethyl)-phenol using asymmetric catalytic reduction and transfer hydrogenation, thereby providing an improved route to forming drug substances such as rivastigimine and rivastigimine hydrogen tartrate.
A separation membrane comprising a polyether polymer having a weight-average molecular weight of 10
4
to 10
7
and obtained by polymerizing an oxirane compound of the formula:
1
wherein R is a hydrogen atom;
an alkyl group, an alkyl group having an halogen atom, or —CH
2
O(CH
2
CH
2
O)
k
—R′ (R′ is a group selected from an alkyl group, an alkenyl group, a cycloalkyl group, an aryl group and an aralkyl group; k is from 0 to 12.); or
an ethylenically unsaturated group, a reactive silicon-containing group or a methylepoxy-containing group, is excellent in mechanical strength and flexibility.
Thermoplastic molding composition, epoxide-vinyl ester resin composition and method for making same
申请人:PHILLIPS PETROLEUM COMPANY
公开号:EP0033542A2
公开(公告)日:1981-08-12
Epoxide-vinyl ester resins having significant amounts of epoxide and ethylenically unsaturated groups may be thickened by reaction thereof with polyfunctional amines. The resulting resinous products, when molded at elevated temperatures, exhibit increased viscosity and controlled flow.