[EN] PROCESS FOR PREPARING S-BEFLUBUTAMID BY RESOLVING 2-BROMOBUTANOIC ACID [FR] PROCÉDÉ DE PRÉPARATION DE S-BEFLUBUTAMIDE PAR DÉDOUBLEMENT DE L'ACIDE 2-BROMOBUTYRIQUE
[EN] PROCESS FOR PREPARING S-BEFLUBUTAMID BY RESOLVING 2-BROMOBUTANOIC ACID [FR] PROCÉDÉ DE PRÉPARATION DE S-BEFLUBUTAMIDE PAR DÉDOUBLEMENT DE L'ACIDE 2-BROMOBUTYRIQUE
[EN] PREPARATION OF S-BEFLUBUTAMID BY RESOLVING 2-(4-FLUORO-3-(TRIFLUOROMETHYL)PHENOXY)BUTANOIC ACID<br/>[FR] PRÉPARATION DE S-BÉFLUBUTAMIDE PAR RÉSOLUTION D'ACIDE 2-(4-FLUORO-3-(TRIFLUOROMÉTHYL)PHÉNOXY) BUTANOÏQUE
申请人:CHEMINOVA AS
公开号:WO2021161101A1
公开(公告)日:2021-08-19
Disclosed is a method for preparing compound Formula S-1, comprising resolving compound Formula rac-2 with a compound of Formula 3 wherein R1 · R4, m and n are as defined in the disclosure.
OPTICALLY ACTIVE 3-METHYLCYCLOPENTADECANONE AND METHOD FOR PRODUCING INTERMEDIATE THEREOF
申请人:Takasago International Corporation
公开号:EP1884509A1
公开(公告)日:2008-02-06
Disclosed is a method for producing an optically active 3-methylcyclopentadecan-1-one which is characterized in that 2-cyclopentadecen-1-one is subjected to a 1,4-conjugate addition reaction of a methyl group by using a methylated organic metal in the presence of a copper catalyst, an enol anion scavenger and a specific optically active phosphoramidite for obtaining an optically active 3-methyl-1-cyclopentadecene derivative, and then the thus-obtained 3-methyl-1-cyclopentadecene derivative is subjected to a solvolysis.
Efficient, Selective, and Green: Catalyst Tuning for Highly Enantioselective Reactions of Ethylene
作者:Craig R. Smith、T. V. RajanBabu
DOI:10.1021/ol800395m
日期:2008.4.1
Fine tuning of the biaryl and amino moieties of Feringa's phosphoramidite ligands yields structurally simpler, yet more efficient and selective, ligands for asymmetric hydrovinylation of vinylarenes and acylic 1,3-dienes. The enantioselectivities and yields observed in the formation of the 3-arylbutenes are among the highest for all asymmetric catalytic processes reported to date for the synthesis of intermediates for the widely used antiinflammatory 2-arylpropionic acids including naproxen, ibuprofen, fenoprofen, and flurbiprofen.
(R)-2,2'-BINAPHTHOYL-(S,S)-DI(1-PHENYLETHYL) AMINOPHOSPHINE. SCALABLE PROTOCOLS FOR THE SYNTHESES OF PHOSPHORAMIDITE (FERINGA) LIGANDS
作者:Smith, Craig R.、Mans, Daniel J.、RajanBabu、Denmark, Scott E.、Nguyen, T.
DOI:10.15227/orgsyn.085.0238
日期:——
PREPARATION OF S-BEFLUBUTAMID BY RESOLVING 2-(4-FLUORO-3-(TRIFLUOROMETHYL)PHENOXY)BUTANOIC ACID