scholarly journals Asymmetric induction by retgersite, nickel sulfate hexahydrate, in conjunction with asymmetric autocatalysis

2015 ◽  
Vol 39 (9) ◽  
pp. 6742-6745 ◽  
Author(s):  
Arimasa Matsumoto ◽  
Hirokazu Ozawa ◽  
Ayako Inumaru ◽  
Kenso Soai
Keyword(s):  
Nickel Sulfate ◽  
Asymmetric Induction ◽  
Asymmetric Autocatalysis

A chiral crystal of retgersite, nickel sulfate hexahydrate, acts as a chiral initiator of asymmetric autocatalysis, affording highly enantiomerically enriched pyrimidyl alkanols.

scholarly journals Cover Picture: Asymmetric Induction by a Nitrogen 14 N/15 N Isotopomer in Conjunction with Asymmetric Autocatalysis (Angew. Chem. Int. Ed. 49/2016)

2016 ◽  
Vol 55 (49) ◽  
pp. 15183-15183
Author(s):  
Arimasa Matsumoto ◽  
Hanae Ozaki ◽  
Shunya Harada ◽  
Kyohei Tada ◽  
Tomohiro Ayugase ◽  
...  
Keyword(s):  
Asymmetric Induction ◽  
Asymmetric Autocatalysis

scholarly journals Titelbild: Asymmetric Induction by a Nitrogen 14 N/15 N Isotopomer in Conjunction with Asymmetric Autocatalysis (Angew. Chem. 49/2016)

2016 ◽  
Vol 128 (49) ◽  
pp. 15407-15407
Author(s):  
Arimasa Matsumoto ◽  
Hanae Ozaki ◽  
Shunya Harada ◽  
Kyohei Tada ◽  
Tomohiro Ayugase ◽  
...  
Keyword(s):  
Asymmetric Induction ◽  
Asymmetric Autocatalysis

scholarly journals Asymmetric Induction by a Nitrogen14N/15N Isotopomer in Conjunction with Asymmetric Autocatalysis

2016 ◽  
Vol 55 (49) ◽  
pp. 15246-15249 ◽  
Author(s):  
Arimasa Matsumoto ◽  
Hanae Ozaki ◽  
Shunya Harada ◽  
Kyohei Tada ◽  
Tomohiro Ayugase ◽  
...  
Keyword(s):  
Asymmetric Induction ◽  
Asymmetric Autocatalysis

scholarly journals Asymmetric Induction by a Nitrogen14N/15N Isotopomer in Conjunction with Asymmetric Autocatalysis

2016 ◽  
Vol 128 (49) ◽  
pp. 15472-15475 ◽  
Author(s):  
Arimasa Matsumoto ◽  
Hanae Ozaki ◽  
Shunya Harada ◽  
Kyohei Tada ◽  
Tomohiro Ayugase ◽  
...  
Keyword(s):  
Asymmetric Induction ◽  
Asymmetric Autocatalysis

P-Chiral 2-{1'-[Butyl(phenyl)phosphanyl]ferrocen-1-yl}-4-isopropyl-4,5-dihydrooxazoles: A Second Chirality Center in Catalytic System

2005 ◽  
Vol 70 (3) ◽  
pp. 361-369 ◽  
Author(s):  
Dušan Drahoňovský ◽  
Petr Štěpnička ◽  
Dalimil Dvořák
Keyword(s):  
Catalytic System ◽  
Asymmetric Induction ◽  
Dimethyl Malonate ◽  
Enantiomerically Pure

P-Chiral (S,RP)-2-{1'-[butyl(phenyl)phosphanyl]ferrocen-1-yl}-4-isopropyl-4,5-dihydrooxazole (6) and (S,SP)-2-{1'-[butyl(phenyl)phosphanyl]ferrocen-1-yl}-4-isopropyl-4,5-dihydrooxazole (7) were prepared by the procedure developed by Jugé, starting from enantiomerically pure (-)- or (+)-ephedrine and dichloro(phenyl)phosphine. Compounds 6 and 7 were examined for asymmetric induction in the Pd-catalyzed reaction of rac-1,3-diphenylallyl acetate with dimethyl malonate. The best results were obtained with 7 (98% ee), while 6 gave 82% ee.

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