Efficient catalytic-free method to produce α-aryl cycloalkanones through highly chemoselective coupling of aryl compounds with oxyallyl cations
作者:Juan Luo、Hui Zhou、Jiwei Hu、Rui Wang、Qiang Tang
DOI:10.1039/c4ra01043d
日期:——
Efficient catalytic-free method to produce α-aryl cycloalkanones through highly chemoselective coupling of aryl compounds with oxyallyl cations at room temperature.
A highly efficient enantioselective synthesis of chiral β‐aryloxy alcohols by the RuCl2[(S)‐SDP][(R,R)‐DPEN]} [(Sa,R,R)‐1a; SDP=7,7′‐bis(diarylphosphino)‐1,1′‐spirobiindane; DPEN=trans‐1,2‐diphenylethylenediamine] complex‐catalyzed asymmetric hydrogenation of racemic α‐aryloxydialkyl ketones via dynamickineticresolution (DKR) has been developed. Enantioselectivities of up to 99% ee with good to
PROCESSES FOR PRODUCTION OF OPTICALLY ACTIVE PPAR-ACTIVATING COMPOUNDS AND INTERMEDIATES FOR PRODUCTION THEREOF
申请人:Yamazaki Yukiyoshi
公开号:US20090076280A1
公开(公告)日:2009-03-19
The invention provides a process for producing an optically active butyric acid compound and a production intermediate therefor at high yield and high purity.
The present invention provides a process for producing Compound (6), including reacting Compound (1) with optically active 2-trifluoromethanesulfonyloxybutyrolactone (2a) in the presence of a base or reacting optically active 2-hydroxybutyrolactone (2b) under Mitsunobu reaction conditions, to thereby form Compound (3); reacting Compound (3) with an alcohol and a halogenating agent, to thereby form Compound (4); dehalogenating Compound (4), to thereby form Compound (5); and de-esterifying Compound (5).