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C. E. Klopfenstein

University of Oregon

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Featured researches published by C. E. Klopfenstein.

Journal of Organic Chemistry | 1969

Chemistry of thienopyridines. III. Syntheses of the thieno[2,3-b]- and thieno[3,2-b]pyridine systems. Direct substitution into the former system

L. H. Klemm; C. E. Klopfenstein; Reinhard Zell; D. R. Mccoy; Richard A. Klemm

Journal of Heterocyclic Chemistry | 1970

Chemistry of thienopyridines. IX. Direct nitration of thieno[2,3-b]pyridine and thieno[3,2-b] pyridine†

L. H. Klemm; Reinhard Zell; I. T. Barnish; R. A. Klemm; C. E. Klopfenstein; D. R. Mccoy

Journal of Heterocyclic Chemistry | 1974

Chemistry of thienopyridines. XVII. Direct halogenation of thieno[2,3-b]pyridine

L. H. Klemm; R. E. Merrill; F. H. W. Lee; C. E. Klopfenstein

Journal of Organic Chemistry | 1970

Alumina-catalyzed reactions of hydroxyarenes and hydroaromatic ketones. IV. Products and mechanism of reaction of 2-naphthol with methanol

L. H. Klemm; C. E. Klopfenstein; Joseph Shabtai

Journal of Organic Chemistry | 1968

Geometry of myrtenal. Detailed analysis of the nuclear magnetic resonance spectrum of a bicyclo[3.1.1]hept-2-ene system

Fred Kaplan; Carl Ormund Schulz; David Weisledger; C. E. Klopfenstein

Journal of Heterocyclic Chemistry | 1971

Condensed thiophenes from sulfur bridging. II. Catalyzed reaction of azabiaryls with hydrogen sulfide

L. H. Klemm; D. R. Mccoy; C. E. Klopfenstein

Journal of Heterocyclic Chemistry | 1989

The insertion and extrusion of heterosulfur bridges.XVI. Synthesis of triphenyleno[1,12-bcd:4,5-b'c'd']dithiophene

L. H. Klemm; Eliot Hall; Lisa Cousins; C. E. Klopfenstein

Journal of Heterocyclic Chemistry | 1987

The insertion and extrusion of heterosulfur bridges. XIV. Synthesis of nitrotriphenyleno[1,12-bcd]thiophenes†

L. H. Klemm; Eliot Hall; Lisa Cousins; C. E. Klopfenstein

Journal of Organic Chemistry | 1986

9,10-Disubstituted-2-anthracenyl tert-butyl nitroxides. ESR spectroscopic indicators for singlet oxygen

John F. W. Keana; Vaikunth S. Prabhu; Shigeru Ohmiya; C. E. Klopfenstein

Journal of Heterocyclic Chemistry | 1987

The insertion and extrusion of heterosulfur bridges. XIII. Syntheses and structural studies of nitrophenanthro[4,5-bcd]thiophenes†

L. H. Klemm; Reiko Tsuchiya; Eric K. L. Wong; Michael P. Stevens; Jennifer J. Lu; C. E. Klopfenstein

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L. H. Klemm

University of Oregon

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D. R. Mccoy

University of Oregon

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Eliot Hall

University of Oregon

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Lisa Cousins

University of Oregon

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Reinhard Zell

University of Oregon

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Eric K. L. Wong

University of Oregon

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F. H. W. Lee

University of Oregon

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I. T. Barnish

University of Oregon

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Jennifer J. Lu

University of Oregon

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John F. W. Keana

University of Oregon

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