Zobrazeno 1 - 10
of 196
pro vyhledávání: '"Pierre Demerseman"'
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 100:539-548
The retro-Fries rearrangement, catalyzed by protic and Lewis acids, was studied for some o-hydroxyketones. The results are consistent with the mechanism of an heterolytic cleavage and rearrangement. It appears that, in general, Lewis acids do not ind
Publikováno v:
Journal of Heterocyclic Chemistry. 33:973-977
New functionalized α-carbolinones especially the 4-hydroxy-3-nitro-1H,9H-pyrido[2,3-b]indol-2-one were synthesized in a good yield, three-step reaction. A complete 13C, 15N nmr study of this carbolinone and precursors is presented.
Publikováno v:
Journal of Heterocyclic Chemistry. 32:17-24
1,6-Dioxabenzo[a]pyrene, the first dioxa-analog of benzo[a]pyrene, was synthesized from 5-methoxy-1-naphthol in an eight-step reaction involving two peri-heterocyclizations.
Autor:
G. Lamotte, J. M. Gillardin, F. Lepage, S. Risse, Pierre Demerseman, Daniel Dauzonne, R. Pointet
Publikováno v:
European Journal of Medicinal Chemistry. 30:53-59
Summary A series of novel benzofuranylacryloylpiperazines, which are structurally related to both cinnamamide derivatives and befuraline, have been prepared as their hydrochlorides. Their anticonvulsant and antidepressant activities against seizures
Autor:
J.‐P. Bideau, J. Kotzyba, M. Cotrait, J.‐P. Buisson, N. Platzer, Pierre Demerseman, J.‐P. Lievremont
Publikováno v:
Journal of Heterocyclic Chemistry. 30:739-747
1,8-Dioxapyrene, a novel unsubstituted dioxa-analog of pyrene was synthesized from 4-methoxy-1-naphthol in a ten-step reaction involving two peri-heterocyclizations- 1 H and 13 C nmr indicated a disruption of extended delocalization of π electrons,
Publikováno v:
Applied Spectroscopy. 47:317-320
Fluorescence emission spectra are reported for benzo[b]naphtho[2,3d]furan, dinaphtho[l,2b:l′,2′d]furan, dinaphtho[2,lb:l′,2′d]furan, dibenzo[2,3:10,11]perylo[l,12bcd]furan, dibenzo[2,3:10,ll]perylo-(l,12bcd]thiophene, naphtho[l,8bc:5,4b′c
Publikováno v:
Acta Crystallographica Section C Crystal Structure Communications. 49:264-267
Autor:
Helene Strapelias, Henri Pezerat, Pierre Demerseman, Maurice Duquesne, J.-P. Buisson, Roger Zalma, Odilon Chalvet
Publikováno v:
Free Radical Research Communications. 18:229-237
Generation of radical anions during NADPH reduction of four mutagenic and genotoxic alpha-nitroarenofurans was examined. ESR showed that free radicals were generated during reduction solely in the presence of light. Computer simulations of ESR spectr
Autor:
Robert Martin, Pierre Demerseman
Publikováno v:
ChemInform. 23
The titanium(IV) chloride-mediated Fries rearrangement of 3,4-dialkylphenyl benzoates 1 yields mainly 4,5-dialkyl-2-hydroxy-benzophenones 2 in high yield. We describe here a new access to the unknown vicinal 2,3-dialkyl-6-hydroxybenzophenones 3, whic
Publikováno v:
ChemInform. 22