Enantioselective Hydroformylation of 1-Alkenes with Commercial Ph-BPE Ligand
摘要:
A rhodium complex, in conjunction with commercially available Ph-BPE ligand, catalyzes the branch-selective asymmetric hydroformylation of 1-alkenes and rapidly generates alpha-chiral aldehydes. A wide range of terminal olefins Including 1-dodecene were examined, and all delivered high enantioselectivity (up to 98:2 er) as well as good branch:linear ratios (up to 15:1).
Enantioselective Hydroformylation of 1-Alkenes with Commercial Ph-BPE Ligand
摘要:
A rhodium complex, in conjunction with commercially available Ph-BPE ligand, catalyzes the branch-selective asymmetric hydroformylation of 1-alkenes and rapidly generates alpha-chiral aldehydes. A wide range of terminal olefins Including 1-dodecene were examined, and all delivered high enantioselectivity (up to 98:2 er) as well as good branch:linear ratios (up to 15:1).
Phosphonates useful as modulators of t $g(g)9$g(d)2 lymphocyte activity
申请人:Montero Jean-Louis
公开号:US20060241087A1
公开(公告)日:2006-10-26
The invention concerns novel phosphonate derivatives, preparation method, use thereof as ligands modulating T γ9δ2 lymphocyte activity and pharmaceutical compositions comprising them.
Lipase from Mucor miehei (MML) has been selected as the most suitable enzyme to catalyze the efficient monobenzoylation of 1,4-diols using vinyl benzoate as acyltransfer reagent in tert-butyl methyl ether. The regioselectivity of the monobenzoylation of 2-substituted-1,4-diols has been studied as well.
Phosphonates useful as modulators of T-gamma-9-delta-2 activity
申请人:Montero Jean-Louis
公开号:US20100204184A1
公开(公告)日:2010-08-12
The invention concerns novel phosphonate derivatives, preparation method, use thereof as ligands modulating T γ9δ2 lymphocyte activity and pharmaceutical compositions comprising them.