Optical resolution of 1,3-dimethyl-5-phenyl-Δ2-pyrazoline by diastereoisomeric complex formation with an optically active host compound: X-ray and molecular structure of the complex

Author(s):  
Fumio Toda ◽  
Koichi Tanaka ◽  
Lourdes Infantes ◽  
Concepción Foces-Foces ◽  
Rosa M. Claramunt ◽  
...  
1989 ◽  
Vol 30 (14) ◽  
pp. 1841-1844 ◽  
Author(s):  
Fumio Toda ◽  
Koji Mori ◽  
Zafra Stein ◽  
Israel Goldberg

1995 ◽  
Vol 50 (1) ◽  
pp. 37-42 ◽  
Author(s):  
Erhard Uhlemann ◽  
Alwin Friedrich ◽  
Gerald Hinsche ◽  
Wulfhard Mickler ◽  
Uwe Schilde

Acid constants and stability constants of nickel and zinc chelates with 2-thenoyltrifluoroacetone, dibenzoylmethane, 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone and 3-phenyl-4-benzoyl-5-isoxazolone were compared. The extraction of copper was studied. Thermoanalytic measurements were made using the ligands and their copper compounds in the solid state. The molecular structure of 3-phenyl-4-benzoyl-5-isoxazolone was determined by X-ray analysis. Crystal data: a = 874,7(2), b = 1959,2(7), c = 897,38(7) pm; β = 101,030(7)°; space group P 121/c 1; Z = 4; R = 0,043; 1920 observed, unique reflexions.


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