Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2005-05-17
2005-05-17
Kumar, Shailendra (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C548S208000, C564S152000, C560S126000, C560S127000, C502S011000, C502S170000, C502S200000, C502S302000
Reexamination Certificate
active
06894172
ABSTRACT:
Chiral chelating agents and chiral catalysts, which are formed from the chiral chelating agents and metal, are described. One chiral chelating agent has a general formula (1) as illustrated below:wherein R represents H, methyl, ethyl, a primary, secondary or tertiary straight, branched or cyclic alkyl group having 3-7 carbon atoms, a heterocyclic or aromatic group, an aromatic group substituted at the 2-, 3- or 4-position, an aromatic-like group, or a naphthyl or naphthyl-derived group, and n is an integer between 0 and 4.
REFERENCES:
Carvalho et al, Inorganic Chem., vol. 33, pp. 6270-6277, 1994.*
Yang et al, Organic Letters, vol. 4, No. 7, 2002, pp. 1107-1109.
Chen Kwunmin
Lee Wei-Der
Pan Jia-Fu
Yang Kung-Shou
J.C. Patents
Kumar Shailendra
National Taiwan Normal University
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