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The Synthesis of Electron Donor-acceptor Substituted Pyrazoles

Miller, R. D. and Reiser, O. (1993) The Synthesis of Electron Donor-acceptor Substituted Pyrazoles. Journal of Heterocyclic Chemistry 30, pp. 755-763.

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A variety of 1,3- and 1,5-donor-acceptor substituted pyrazole derivatives have been synthesized by the cyclocondensation of a,b-ethynyl ketones with substituted phenyl hydrazines. The regioselectivity of the cyclization depends on the reaction conditions in a manner consistent with competitive 1,2- and 1,4-addition followed by ring closure. 1,4-Disubstituted derivatives can be prepared from the ...


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Item type:Article
Institutions:Chemistry and Pharmacy > Institut für Organische Chemie > Lehrstuhl Prof. Dr. Oliver Reiser
Dewey Decimal Classification:500 Science > 540 Chemistry & allied sciences
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Unknown
Item ID:265
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