DEDICATED TO PROFESSOR HC BROWN ON HIS ... - Sigma-Aldrich
DEDICATED TO PROFESSOR HC BROWN ON HIS ... - Sigma-Aldrich
DEDICATED TO PROFESSOR HC BROWN ON HIS ... - Sigma-Aldrich
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Josiphos is a family of chiral phosphinesubstituted<br />
ferrocene ligands useful for<br />
various enantioselective reactions,<br />
especially hydrogenations of C=O and<br />
C=N groups. 1-3 Fluka offers an assortment<br />
of Josiphos ligands with different steric<br />
and electronic properties, to best suit<br />
your specific needs.<br />
Chiral ligands for highly enantioselective hydrogenation and related reactions. The palladium-catalyzed<br />
substitution of allylic acetates by carbon nucleophiles proceeds rapidly, giving high enantioselectivity: 3,4<br />
43167 (R)-1-[(1S)-2-(Diphenylphosphino)ferrocenyl]ethyldicyclohexylphosphine 100mg; 500mg<br />
[(R)-(S)-Josiphos] purum, ~97% Mr 594.54 C36H44FeP2 [155806-35-2]<br />
43168 (S)-1-[(1R)-2-(Diphenylphosphino)ferrocenyl]ethyldicyclohexylphosphine 100mg; 500mg<br />
[(S)-(R)-Josiphos] purum, ≥ 97.0% Mr 594.54 C36H44FeP2 [162291-02-3]<br />
Chiral ligands for homogeneous catalysis: 5,6<br />
43164 (R)-1-[(1S)-2-(Diphenylphosphino)ferrocenyl]ethyldi-tert-butylphosphine 100mg; 500mg<br />
purum, ≥ 97.0% (CHN/NMR) Mr 542.46 C32H40FeP2 [155830-69-6]<br />
43166 (S)-1-[(1R)-2-(Diphenylphosphino)ferrocenyl]ethyldi-tert-butylphosphine 100mg; 500mg<br />
purum, ≥ 97.0% (CHN/NMR) Mr 542.46 C32H40FeP2<br />
Chiral ligands for homogeneous catalysis:<br />
36676 (R)-1-[(1S)-2-(Dicyclohexylphosphino)ferrocenyl]ethyldicyclohexylphosphine 100mg; 500mg<br />
purum, amount Fe ~97% Mr 606.63 C36H56FeP2 [167416-28-6]<br />
36677 (S)-1-[(1R)-2-(Dicyclohexylphosphino)ferrocenyl]ethyldicyclohexylphosphine 50mg; 250mg<br />
purum, amount Fe ~97% Mr 606.63 C36H56FeP2 [158923-07-0]<br />
36678 (R)-1-[(1S)-2-(Dicyclohexylphosphino)ferrocenyl]ethyldiphenylphosphine 50mg; 250mg<br />
purum, ≥ 97.0% (CHN/NMR) Mr 594.54 C36H44FeP2 [158923-09-2]<br />
36679 (S)-1-[(1R)-2-(Dicyclohexylphosphino)ferrocenyl]ethyldiphenylphosphine 50mg; 250mg<br />
purum, ≥ 97.0% (CHN/NMR) Mr 594.54 C36H44FeP2 [162291-01-2]<br />
(1) Blaser, A. H. U. J. Organomet. Chem. 2001, 34, 621. (2) Spindler, B F.; Blaser, A. H. U. Adv. Synth. Catal. 2000, 68, 1. (3) Togni, C. A. et al. J. Am. Chem. Soc.<br />
1994, 116, 4062. (4) Bronco, S. et al. Helv. Chim. Acta 1995, 78, 883. (5) Pregosin, P. S. et al. Organometallics 1995, 14, 842. (6) Zanetti, N.C. et al. ibid. 1996,<br />
15, 860.<br />
Our range of products in this rapidly evolving field is continuously<br />
expanding. For more information, please visit our Web site at<br />
www.sigma-aldrich.com/fluka.
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