Zobrazeno 1 - 10
of 128
pro vyhledávání: '"ALFONS L. BAUMSTARK"'
Autor:
Saajid Z. Azhar, Andrew C. Clay, Hadrian Mendoza, Glenda M. Duffek, Nicole A. Brown, Jianmei Cui, Anand B. Shah, Hayley B. Arrowood, Alfons L. Baumstark, Beatrice A. Edjah, Amy N. Hockstedler
Publikováno v:
Heterocyclic Communications. 23:125-131
A series of chalcones 1–12 were converted to pyrazolines (1Pi–12Pi) by reaction with phenylhydrazine followed by DDQ oxidation to produce the corresponding pyrazoles (1Pz–12Pz). Three 1-phenyl-3-t-butyl-5-arylpyrazoles (13Pz–15Pz) were synthe
Autor:
Alfons L. Baumstark
Publikováno v:
Heterocyclic Communications. 23:133-135
Autor:
Ronald Shanderson, Stephanie Ross, Patrick Gaulden, Hector Argueta-Gonzalez, Beatrice A. Edjah, Julia Dave, Jiayo Yu, Alfons L. Baumstark
Publikováno v:
Heterocyclic Communications. 21:279-283
A series of 3,5-diarylisoxazoles (1–9) underwent reaction with N-bromosuccinimide in acetic acid to yield the corresponding 3.5-diaryl-4-bromoisoxazoles (1Br–9Br) in low to moderate yield. The X-ray structure of 3-(4-chlorophenyl)-5-phenyl-4-brom
Publikováno v:
Heterocyclic Communications. 21:47-53
The reaction of dimethyldioxirane (1) with excess 1,3-cyclohexadiene (2a) and 1,3-cyclooctadiene (2b) in dried acetone yielded the corresponding monoepoxides in excellent yield. Second-order rate constants for monoepoxidation were determined using UV
Publikováno v:
hc. 18:75-78
Kinetic data for the reaction of dimethyldioxirane (1) with a series of acyclic, aliphatic conjugated dienes 2a–f are reported. Monoepoxidation is the preferred process and the monoepoxides are formed in high yield as long as the dienes are in exce