Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Reexamination Certificate
2011-04-19
2011-04-19
Kosack, Joseph R (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
C564S337000
Reexamination Certificate
active
07928257
ABSTRACT:
This invention provides a method for producing an optically active aziridine compound or amine compound, which uses as a catalyst a Ru(salen)(CO) complex represented by the following formula (I) or its enantiomer having a high stability, in a high turnover number (TON) and a high enantioselectivity. In the formula (I), Ar is represented by the following formula (VI) or (VII), wherein in the formula (VI), Xs are independently a halogen or a halogenated alkyl group and R1and R2s are independently hydrogen or an alkyl group or a trialkylsilyl group having a carbon number of 1-4, and in the formula (VII), R3is a bulky group.
REFERENCES:
patent: 1 449 831 (2004-08-01), None
patent: A-2002-080415 (2002-03-01), None
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Uchida, Tatsuya et al. “Mechanism of asymmetric Sulfimidation withN-alkoxycarbonyl azide in the presence of (OC)Ru(salen) complex,” Crest, Oct. 20, 2003, pp. 7965-7968, vol. 44, No. 43,Tetrahedron Letters, Elsevier, Amsterdam.
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The Chemical Society of Japan, The 83rdAnnual Spring Meeting (2003), Seminar Proceeding II, 2003, p. 1199.
Irie Ryo
Katsuki Tsutomu
Omura Kazufumi
Uchida Tatsuya
Japan Science and Technology Agency
Kosack Joseph R
Oliff & Berridg,e PLC
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