J. L. Flippen

Hokkaido University of Science — Japan

Chemistry · Physical Sciences

17h-index1.0kcitations76works0.02yr avg
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Research Topics

Synthesis and Biological Evaluation(9), Synthesis and Reactions of Organic Compounds(9), Synthesis and biological activity(8), Organic Chemistry Cycloaddition Reactions(8), Synthesis and Characterization of Heterocyclic Compounds(8)

Publications76 total

ChemInform Abstract: Photoinduced Reaction. Part 106. Photochemistry of Conjugated Nitrogen‐Carbonyl Systems. Part 6. Photodimerization of 2,4‐Dioxotetrahydropyridines.
ChemInform·1989
Photochemistry of conjugated nitrogen – carbonyl systems, 6. Photodimerization of 2,4‐dioxotetrahydropyridines
Liebigs Annalen der Chemie·1988· 4 cited
ChemInform Abstract: INDOLOQUINOLIZIDINE N‐OXIDES AND POLONOVSKI REARRANGEMENT
Chemischer Informationsdienst·1982· 1 cited
Indoloquinolizidine N-Oxides and Polonovski Rearrangement
Heterocycles·1982· 11 citedOpen Access
ChemInform Abstract: STEREOSPECIFIC ACID‐CATALYZED REARRANGEMENTS OF 5,12‐DIMETHYLPENTACYCLO(6.4.0.02,5.03,12.04,9)DODECANE‐6,11‐DIONES WITH THEIR STRAIN RELEASE TO BISNORDIAMANTANE AND DIPROTOADAMANTANE RING SYSTEMS
Chemischer Informationsdienst·1979
Stereospecific acid-catalyzed rearrangements of 5,12-dimethylpentacyclo[6.4.0.02,5.03,12.04,9]dodecane-6,11-diones with their strain release to bisnordiamantane and diprotoadamantane ring systems
Journal of the American Chemical Society·1979· 9 cited
ChemInform Abstract: HARRINGTONOLIDE, A PLANT GROWTH INHIBITORY TROPONE FROM CEPHALOTAXUS HARRINGTONIA (FORBES) K. KOCH
Chemischer Informationsdienst·1978· 9 cited
Harringtonolide, a plant growth inhibitory tropone from Cephalotaxus harringtonia (Forbes) K. Koch
The Journal of Organic Chemistry·1978· 111 cited
1,2β-Dimethoxycarbonyl-3aα-hydroxy-2a,3,3,8,8aα-pentahydropyrrolo[2,3-<i>b</i>]indole
Acta Crystallographica Section B·1978· 4 cited
A valid model for the mechanism of oxidation of tryptophan to formylkynurenine—25 years later
Proceedings of the National Academy of Sciences·1977· 103 citedOpen Access
<i>trans</i>-6a,11b-Dihydro-5-methylbenzo[<i>b</i>]thieno[2,3-<i>c</i>]quinolin-6-one (I) and <i>cis</i>-6a,11b-dihydrobenzo[<i>b</i>]thieno[2,3-<i>c</i>]quinolin-6-one 7,7-dioxide (II)
Acta Crystallographica Section B·1977· 3 cited
THE CRYSTAL STRUCTURES OF TWO IMINO-1,2,4- DITHIAZOLES FORMED BY THERMAL DECOMPOSITION OF 5-(DIALKYLAMINO)-3-(SUBSTITUTED IMINO)-1,2,4-DITHIAZOLES
Phosphorous and Sulfur and the Related Elements·1977· 8 cited
Conformation of the cyclic tetrapeptide dihydrochlamydocin. Iabu‐<scp>L</scp>‐Phe‐<scp>D</scp>‐Pro‐<scp>L</scp>X, and experimental values for 3 → 1 intramolecular hydrogen bonds by X‐ray diffraction
Biopolymers·1976· 109 cited
ChemInform Abstract: PHOTOCHEMICAL DECOMPOSITION OF 19‐HYDROXY‐7‐DEHYDROCHOLESTEROL. X‐RAY CRYSTALLOGRAPHIC STUDY OF 19‐NORCHOLESTA‐5(10),6‐DIENE‐3β‐YL ACETATE
Chemischer Informationsdienst·1976
Two acid rearrangement products from substituted pentacyclododeca-5,12-diones: C18H24O2 and C16H20O4
Acta Crystallographica Section B·1976
ChemInform Abstract: PHOTOCHEMISTRY OF THE AMIDE SYSTEM. V. SYNTHETIC PHOTOCHEMISTRY WITH HETEROCYCLIC ANILIDES. STEREOCHEMISTRY OF THE INTRAMOLECULAR 1,5‐HYDROGEN SHIFTS IN NONOXIDATIVE PHOTOCYCLIZATION OF BENZO(B)THIOPHENE‐2‐CARBOXANILIDES
Chemischer Informationsdienst·1976· 17 cited
ChemInform Abstract: CONFORMATION OF THE TETRASACCHARIDE STACHYOSE
Chemischer Informationsdienst·1976
Photochemical decomposition of 19-hydroxy-7-dehydrocholesterol. X-Ray crystallographic study of 19-norcholesta-5(10),6-dien-3β-yl acetate
Journal of the Chemical Society Chemical Communications·1976· 2 cited
ChemInform Abstract: (2+2)CYCLOADDITIONS OF TETRACYANOETHYLENE TO ENOL ETHERS, STRUCTURE OF THE PRODUCT OF INTERCEPTION WITH ALCOHOL
Chemischer Informationsdienst·1975
Conformation of the tetrasaccharide stachyose
Journal of the American Chemical Society·1975· 20 cited
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Frequent Co-authors

Isabella L. Karle(14), R. Gilardi(8), Bernhard Witkop(7), Robert M. Moriarty(5), J. Karle(4), Yuichi Kanaoka(4), Tohru Hino(3), James E. Oliver(3), Jean M. Karle(3), William R. Lusby(2), Masako Nakagawa(2), Kan‐Nan Chen(2), I.L. Karle(2), B. Witkop(2), Yuko Miyake(2), Ken‐ichi Hirao(2), Mikio Taniguchi(2), Osamu Yonemitsu(2), J. George Buta(1), Hideyuki Watanabe(1)