Lanoconazole and Its Related Optically Active Compound NND-502: Novel Antifungal Imidazoles with a Ketene Dithioacetal Structure

2003 ◽  
Vol 2 (2) ◽  
pp. 147-160 ◽  
Author(s):  
Yoshimi Niwano ◽  
Tetsuto Ohmi ◽  
Akira Seo ◽  
Hiroki Kodama ◽  
Hiroyasu Koga ◽  
...  
Keyword(s):  
Active Compound ◽  
Optically Active ◽  
Ketene Dithioacetal

Controlled release of an optically active compound by hydrogels of acrylic acid and its online detection

2017 ◽  
Vol 96 (5) ◽  
pp. 1221-1227 ◽  
Author(s):  
Leandro G. Aguiar ◽  
Daniel C. Iwakura ◽  
Ana T. S. Semeano ◽  
Rosamaria W. C. Li ◽  
Esmar F. Souza ◽  
...  
Keyword(s):  
Controlled Release ◽  
Acrylic Acid ◽  
Active Compound ◽  
Optically Active ◽  
Online Detection

Studies of the optically active compounds of Anacardiaceae exudates. II. The action of Alkali on the long-chain alicyclic Keto Alcohol of Tigaso Oil

1958 ◽  
Vol 11 (1) ◽  
pp. 64 ◽  
Author(s):  
LK Dalton ◽  
JA Lamberton
Keyword(s):  
Optical Activity ◽  
Active Compound ◽  
Optical Rotation ◽  
Large Change ◽  
Optically Active ◽  
Bicyclic Compound ◽  
Compound I ◽  
Alcoholic Alkali ◽  
Rapid Reaction ◽  
Long Chain

In cold alcoholic alkali the optically active compound I from Tigaso oil undergoes a rapid reaction which involves loss of its conjugated carbonyl system, and a large change, with inversion, of its optical rotation. The reaction is interpreted as a cyclization and the product is provisionally formulated as a bicyclononane derivative IIa. In hot alcoholic alkali, IIa is not the final product ; the bicyclic compound undergoes further reaction to give a mixture in which the unsaturated monocyclic triketone VII (R=C16H31) appears to predominate, but which probably consists of a mixture of VII and VIII (R=C16H31). These can be hydrogenated to a mixture of saturated monocyclic triketones VII and VIII (R =C16H33). The same hydrogenated triketones are obtained if IIa is first hydrogenated and then heated with alcoholic alkali. These triketones are optically active and by oxidation with hypobromite, or with permanganate and then hypobromite, yield bromoform and the chemically homogeneous tribasic acid IX, which still retains optical activity. The isolation of the saturated hydroxydiketone IIb in 4 per cent, yield from hydrogenated Tigaso oil suggests that 11% is present to that extent in the original oil.

α-Phosphoryl sulfoxides. XI. Sulfenylation of α-phosphoryl sulfoxides and a general synthesis of optically active ketene dithioacetal mono-S-oxides

Tetrahedron ◽  
1997 ◽  
Vol 53 (8) ◽  
pp. 2959-2972 ◽  
Author(s):  
Marian Mikołajczyk ◽  
Wanda H. Midura ◽  
Blanka Wladislaw ◽  
Francisco C. Biaggio ◽  
Liliana Marzorati ◽  
...  
Keyword(s):  
Optically Active ◽  
Ketene Dithioacetal ◽  
General Synthesis

Sol–gel thin film deposition and characterization of a new optically active compound: Er2Ti2O7

2001 ◽  
Vol 16 (4) ◽  
pp. 463-473 ◽  
Author(s):  
M. Langlet ◽  
C. Coutier ◽  
J. Fick ◽  
M. Audier ◽  
W. Meffre ◽  
...  
Keyword(s):  
Thin Film ◽  
Active Compound ◽  
Sol Gel ◽  
Thin Film Deposition ◽  
Optically Active ◽  
Film Deposition

Crystalline inclusion complexes as media of molecular recognitions and selective reactions

2001 ◽  
Vol 73 (7) ◽  
pp. 1137-1145 ◽  
Author(s):  
Fumio Toda
Keyword(s):  
Inclusion Complexes ◽  
Chemical Reaction ◽  
Active Compound ◽  
Inclusion Complexation ◽  
Photochemical Reactions ◽  
Optically Active ◽  
Crystalline Inclusion ◽  
Guest Molecules ◽  
Water Suspension ◽  
Enantioselective Reactions

Hexaol host compounds which include guest molecules maximum in 1:6 ratio were prepared. Aromatic hexaol host, hexahydroxytriphenylene, was found to form chiral inclusion crystal by complexation with achiral guest molecules. Some interesting and important optical resolutions of rac-guests by inclusion complexation with a chiral host were described. When chemical reaction and the inclusion complexation procedures in a water suspension medium are combined, new economical and ecological method of the preparation of optically active compound can be established. When photochemical reactions are carried out in an inclusion crystal with a chiral host, enantioselective reactions occur, and optically active product can be obtained. Several successful reactions are described.

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