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Recherches sur la formation et la transformation de dérivés organiques du fluor IV. Sur la phosphorylation d'alcools fluorés par l'acide polyphosphorique et sur la vitesse de scission du fluor et de la liaison ester phosphorique des esters fluoralcoylphos

Autor: A. de Picciotto, H. Probst, Br. Baehler, Emile Cherbuliez, G. Cordahi, A. R. Sussmann, F. Hunkeler, J. Rabinowitz, A. Yazgi

Publikováno v: Helvetica Chimica Acta. 43:1148-1155

Some new fluorinated phosphoric esters are described. The rate of hydrolysis of the organic fluorine and of the phosphoric ester bond is studied. The phosphoric ester group has a stabilizing effect on the fluorine in alkaline medium, whereas the fluo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b56a661b19c549a958cb8b56c0d1d22c
https://doi.org/10.1002/hlca.19600430427

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Recherches sur la formation et la transformation des esters XXX. Sur l'action de l'oxyde phénylphosphonique sur les amines et les amino-alcools

Autor: J. Rabinowitz, Br. Baehler, Emile Cherbuliez

Publikováno v: Helvetica Chimica Acta. 44:1820-1824

The reaction of phenylphosphonic oxide with amines and amino-alcools is described. Under appropriate conditions this reaction yields respectively the corresponding phosphonic mono-amides and mono-esters.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7e6ead39a8e27ea75196524dd17306ad
https://doi.org/10.1002/hlca.19610440647

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Réarrangements d'acétonides de sucres carbonylés. Communication préliminaire

Autor: Br. Baehler, J. M. Bourgeois, J. M. J. Tronchet

Publikováno v: Helvetica Chimica Acta. 53:368-372

Isopropylidene derivatives of keto- or aldehydo-sugars are susceptible to rearrangements involving participation of the dioxolane ring.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f7d492162d8c74af4256a52dc714868e
https://doi.org/10.1002/hlca.19700530218

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Note sur les réctions d'échange de restes alcoyle chez des monoesters orthophosphoriques et benzènephosphonique

Autor: Emile Cherbuliez, Br. Baehler, J. Marszalek, J. Rabinowitz, G. Weber

Publikováno v: Helvetica Chimica Acta. 52:2676-2679

Experimental data obtained from the study of the behaviour of monoalkyl phosphates ROP(O)(OH)O− or monoalkyl phosphonates C6H5P(O)(OR)O− in aquo-alcoholic (H2O + R′OH) solutions suggest: (1) in the case of monoalkyl phosphonates the exchange of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c5574ba9f7617004d2c2e9fe81f38444
https://doi.org/10.1002/hlca.19690520849

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Recherches sur la formation et la transformation de dérivés organiques du fluor VII. Nouveaux carbamates de diols fluorés ou non

Autor: A. R. Sussmann, J. Rabinowitz, Emile Cherbuliez, Br. Baehler

Publikováno v: Helvetica Chimica Acta. 44:1806-1809

3,3-dimethylpentane-2,4-diol, a new diol, and its dicarbamate have been prepared. Some N,N-diethylcarbamates of diols have also been prepared from N,N-diethylcarbamoyl chloride and the corresponding diols.

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https://doi.org/10.1002/hlca.19610440641

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Recherches sur la formation et la transformation des esters LX. Sur la réaction des isothiocyanates avec des amino-alcools soit libres soit estérifiés avec des acides du phosphore

Autor: G. Wyss, G. Weber, Br. Baehler, Emile Cherbuliez, H. Jindra, J. Rabinowitz

Publikováno v: Helvetica Chimica Acta. 48:1069-1076

Aminoalkyl phosphoric monoesters with a primary or secondary amino group react with isothiocyanates in the presence of an alkali (2 moles of NaOH for 1 mole of the monoester and 1 mole of the isothiocyanate) to yield almost quantitatively the corresp

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https://doi.org/10.1002/hlca.19650480513

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Etude de structures peptidiques à l'aide du phénylisothiocyanate VI[1]. Chromatographie sur couche mince de phénylthiohydantoïnes dérivées d'acides aminés

Autor: Br. Baehler, J. Rabinowitz, Emile Cherbuliez

Publikováno v: Helvetica Chimica Acta. 47:1350-1353

Two substrates, hydrated silica gel and alumina, have been used to separate phenylthiohydantoines derived from amino acids, using thin layer chromatography.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b6d9c8b9d59fe9c084d13f57a9a79ebc
https://doi.org/10.1002/hlca.19640470530

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Recherches sur la formation et la transformation des esters XXXVIII. Sur la phosphonylation de divers types d'alcools

Autor: Emile Cherbuliez, Br. Baehler, J. Rabinowitz, H. Probst

Publikováno v: Helvetica Chimica Acta. 45:2656-2660

The preparation of the phenylphosphonic monoesters of tribromoethanol, propargyl alcohol, glycerol, choline, menthol, and borneol is described.

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https://doi.org/10.1002/hlca.19620450737

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Utilisation d'ylides du phosphore non stabilisés en chimie des sucres. II. Action du méthylthiométhylène-triphénylphosphorane sur lesaldéhydo-surces

Autor: Mme S. Jaccard‐Thorndahl, J. M. J. Tronchet, Br. Baehler

Publikováno v: Helvetica Chimica Acta. 52:817-820

The action of methylthiomethylene-triphenylphosphorane on 2,3: 4,5-di-O-isopropylidene-Aldehydo--L-arabinose led with good yield to the corresponding unsaturated sugar which underwent electrophilic addition with a high regiospecificity. This provides

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d0bcea4e0f5047d92b13e67ba7f14af1
https://doi.org/10.1002/hlca.19690520333

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Recherches sur la formation et la transformation des esters LXXI Sur la pr�paration des acides ?-(ph�nylthiocarbamylamino)-alcoylphosphoriques et sur leur scission � divers pH

Autor: E. Frankenfeld, O. Espejo, Br. Baehler, Emile Cherbuliez, J. Rabinowitz

Publikováno v: Helvetica Chimica Acta. 49:2608-2615

Sodium ω-phenylthiocarbamylaminoalkyl phosphates C6H5NHCSNH–(CH2)n–OPO3Na2 have been obtained by reacting phenylisothiocyanate with the corresponding aminoalkyl phosphoric monoester in the presence of 2 eq. of NaOH.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2cf71293046914bdc88cbeb6338fa163
https://doi.org/10.1002/hlca.19660490827

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