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Dive into the research topics where Hélène Ginsburg is active.

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Featured researches published by Hélène Ginsburg.


Tetrahedron Letters | 1987

Reactions SRN1: partie no 18. action de sulfanions derives de HS(CH2)nSH vis-a-vis des halo-1 et -2 naphtalenes

René Beugelmans; Hélène Ginsburg

Abstract A double S RN 1 reaction was shown to occur between HS(CH 2 ) n SH and 1 or 2 halonaphtalene to give the corresponding double sulfides Napht 1(2) S(CH 2 ) n SNapht 1(2) (n = 2, 3, 4)


Journal of The Chemical Society-perkin Transactions 1 | 1982

Studies on SRN1 reactions. Part 6: synthesis of 3-methyl derivatives of the alkaloids thalactamine, doryanine, and 6,7-dimethoxy-N-methyl-1(2H)-isoquinolone

René Beugelmans; Hélène Ginsburg; Michèle Bois-Choussy

A new, short synthesis of the 3-methyl derivatives (3a–c) of the alkaloids thalactamine, doryanine, and 6,7-dimethoxy-N-methyl-1(2H)-isoquinolone, based upon our previous SRN1 synthesis 1 of isocarbostryril [1(2H)-isoquinolone] systems, is reported.


Journal of The Chemical Society, Chemical Communications | 1977

Use of tetrabutylammonium cyanide for photocyanation of aromatic compounds: phase transfer photochemistry

René Beugelmans; Hélène Ginsburg; A. Lecas; Marie-Thérèse Le Goff; J. Pusset; Georges Roussi

Nucleophilic aromatic photosubstitution can be carried out using tetrabutylammonium cyanide in anhydrous acetonitrile or methylene chloride and also under phase-transfer conditions (CH2Cl2–KCN in H2O).


Journal of The Chemical Society, Chemical Communications | 1980

New synthesis of benzo[b]furans by SRN1 reaction of ortho-iodoanisole

René Beugelmans; Hélène Ginsburg

Starting from ortho-iodoanisole, 2-substituted benzo[b]furans are obtained in high yield via aromatic nucleophilic radical substitution (SRN1).


Journal of Organic Chemistry | 1985

Studies in SRN1 series. Part 14. Direct synthesis of benzo[c]phenanthridines and benzo[c]phenanthridones via SRN1 reactions

René Beugelmans; Jacqueline Chastanet; Hélène Ginsburg; Leticia Quintero-Cortes; Georges Roussi


Tetrahedron Letters | 1978

Use of phase transfer agents for photocyanation of aromatic hydrocarbons

René Beugelmans; Hélène Ginsburg; A. Lecas; Marie-Thérèse Le Goff; Georges Roussi


ChemInform | 1986

Studies in SRN1 Series. Part 14. Direct Synthesis of Benzo[c]phenanthridines and Benzo[c]phenanthridones via SRN1 Reactions.

René Beugelmans; Jacqueline Chastanet; Hélène Ginsburg; L. Quintero-Cortes; Georges Roussi


ChemInform | 1982

STUDIES ON SRN1 REACTIONS. PART 6. SYNTHESIS OF 3-METHYL DERIVATIVES OF THE ALKALOIDS THALACTAMINE, DORYANINE, AND 6,7-DIMETHOXY-N-METHYL-1(2H)-ISOQUINOLONE

René Beugelmans; Hélène Ginsburg; Michèle Bois-Choussy


ChemInform | 1979

THE “ONE POT” PHOTOCHEMICAL SYNTHESIS OF 2-METHYL-3-CARBOETHOXY-5-PHENYLINDOLE

René Beugelmans; Hélène Ginsburg; M.-T. Le Goff; A. Lecas; J. Pusset; Georges Roussi


ChemInform | 1978

USE OF TETRABUTYLAMMONIUM CYANIDE FOR PHOTOCYANATION OF AROMATIC COMPOUNDS- PHASE TRANSFER PHOTOCHEMISTRY

René Beugelmans; Hélène Ginsburg; A. Lecas; M.-T. Le Goff; J. Pusset; Georges Roussi

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René Beugelmans

Institut de Chimie des Substances Naturelles

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Georges Roussi

Institut de Chimie des Substances Naturelles

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A. Lecas

Institut de Chimie des Substances Naturelles

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J. Pusset

Institut de Chimie des Substances Naturelles

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Jacqueline Chastanet

Institut de Chimie des Substances Naturelles

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Marie-Thérèse Le Goff

Institut de Chimie des Substances Naturelles

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Michèle Bois-Choussy

Institut de Chimie des Substances Naturelles

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Leticia Quintero-Cortes

Benemérita Universidad Autónoma de Puebla

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