يعرض 1 - 20 نتائج من 72 نتيجة بحث عن '"Silberg Ioan"', وقت الاستعلام: 0.62s تنقيح النتائج
  1. 1
    Academic Journal
    Synthesis of aldehydes and ketones by the dehydrogenation of alcohols in the presence of a Raney nickel/aluminium isopropoxide/alumina catalyst

    المؤلفون: Tarta Ilie, Silberg Ioan, Vlassa Mircea, Oprean Ioan

    المصدر: Open Chemistry, Vol 2, Iss 1, Pp 214-219 (2004)

    مصطلحات موضوعية: dehydrogenation, alcohols, heterogeneous catalysis raney nickel, aluminium isopropoxide, alumina, Chemistry, QD1-999

    وصف الملف: electronic resource

    Relation: https://doaj.org/toc/2391-5420

    URL الوصول: https://doaj.org/article/74683454d77a4c269d86a0bb2b34f9fe

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  2. 2
    Academic Journal
    Microwave-Assisted Phenothiazines Preparation by Thionation of Diphenylamines

    المؤلفون: FILIP, Sorin V., SILBERG, Ioan A., SURDUCAN, Emanoil, VLASSA, Mircea, SURDUCAN, Vasile

    المصدر: Synthetic Communications ; volume 28, issue 2, page 337-345 ; ISSN 0039-7911 1532-2432

    الاتاحة: https://doi.org/10.1080/00397919808005727
    http://www.tandfonline.com/doi/pdf/10.1080/00397919808005727

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  3. 3
    Academic Journal
    Reactions of π-Deficient Aromatic Heterocycles with Ammonium Polyhalides I. Halogenation of Acridone and Acridine Derivatives Using Benzyltriethylammonium (BTEA) Polyhalides

    المؤلفون: Vlassa, Mircea, Silberg, Ioan A., Custelceanu, Radu, Culea, Monica

    المصدر: Synthetic Communications ; volume 25, issue 21, page 3493-3501 ; ISSN 0039-7911 1532-2432

    الاتاحة: https://doi.org/10.1080/00397919508013873
    http://www.tandfonline.com/doi/pdf/10.1080/00397919508013873

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  4. 4
    Academic Journal
    Applications of Calix[4]pyrroles

    المؤلفون: Lozovanu, Silvia, Silaghi‐Dumitrescu, Luminita, Silberg, Ioan Alexandru

    المصدر: ChemInform ; volume 37, issue 10 ; ISSN 0931-7597 1522-2667

    الاتاحة: http://dx.doi.org/10.1002/chin.200610272
    https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fchin.200610272
    https://onlinelibrary.wiley.com/doi/pdf/10.1002/chin.200610272

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  5. 5
    Academic Journal
    Retrosynthetic Approach to the Synthesis of Phenothiazines

    المؤلفون: Silberg, Ioan A., Cormos, Gabriela, Oniciu, Daniela Carmen

    المصدر: ChemInform ; volume 37, issue 38 ; ISSN 0931-7597 1522-2667

    الاتاحة: http://dx.doi.org/10.1002/chin.200638239
    https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fchin.200638239
    https://onlinelibrary.wiley.com/doi/pdf/10.1002/chin.200638239

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  6. 6
    Academic Journal
    (E)-3-(2-Alkyl-10H-phenothiazin-3-yl)-1-arylprop-2-en-1-ones: preparative, IR, NMR and DFT study on their substituent-dependent reactivity in hydrazinolysis and sonication-assisted oxidation with copper(ii)nitrate

    المؤلفون: Găină, Luiza, Csámpai, Antal, Túrós, György, Lovász, Tamás, Zsoldos-Mády, Virág, Silberg, Ioan A., Sohár, Pál

    المصدر: Org. Biomol. Chem. ; volume 4, issue 23, page 4375-4386 ; ISSN 1477-0520 1477-0539

    الاتاحة: http://dx.doi.org/10.1039/b608455a
    http://pubs.rsc.org/en/content/articlepdf/2006/OB/B608455A

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  7. 7
    Academic Journal
    New Sulfonamides with Acridinic Nucleus.

    المؤلفون: Ferencz, Laszlo, Farcasan, Valer, Silberg, Ioan A.

    المصدر: ChemInform ; volume 35, issue 38 ; ISSN 0931-7597 1522-2667

    الاتاحة: http://dx.doi.org/10.1002/chin.200438153
    https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fchin.200438153
    https://onlinelibrary.wiley.com/doi/pdf/10.1002/chin.200438153

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  8. 8
    Academic Journal
    Synthesis and Structural Assignments of New Long‐Chain Alkyldioxy‐bis‐diphenylamines and Phenothiazines.

    المؤلفون: Gaina, Luiza, Lovasz, Tomas, Cristea, Castelia, Silberg, Ioan A., Deleanu, Calin

    المصدر: ChemInform ; volume 35, issue 17 ; ISSN 0931-7597 1522-2667

    الاتاحة: http://dx.doi.org/10.1002/chin.200417163
    https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fchin.200417163
    https://onlinelibrary.wiley.com/doi/pdf/10.1002/chin.200417163

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  9. 9
    Academic Journal
    Aryl‐Substituted Phenothiazinyl‐enones. Part 1. Synthesis and Structural NMR Assignments.

    المؤلفون: Gaina, Luiza, Cristea, Castelia, Silberg, Ioan A., Lovasz, Tamas, Udrea, Silvia

    المصدر: ChemInform ; volume 34, issue 47 ; ISSN 0931-7597 1522-2667

    الاتاحة: http://dx.doi.org/10.1002/chin.200347160
    https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fchin.200347160
    https://onlinelibrary.wiley.com/doi/pdf/10.1002/chin.200347160

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  10. 10
    Academic Journal
    Gold electrodes modified with 16H,18H-Dibenzo[c,l]-7,9-dithia-16,18-diazapentacene for electrocatalytic oxidation of NADH

    المؤلفون: Roşca, Victor, Mureşan, Liana, Popescu, Ionel Catalin, Cristea, Castelia, Silberg, Ioan Alexandru

    المصدر: Electrochemistry Communications ; volume 3, issue 8, page 439-445 ; ISSN 1388-2481

    الاتاحة: http://dx.doi.org/10.1016/s1388-2481(01)00197-7
    https://api.elsevier.com/content/article/PII:S1388248101001977?httpAccept=text/xml
    https://api.elsevier.com/content/article/PII:S1388248101001977?httpAccept=text/plain

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  11. 11
    Academic Journal
    AZOCOUPLING PRODUCTS. II.* SYNTHESIS AND STRUCTURAL STUDY OF AZOCOUPLING PRODUCTS OF I-(5,6-DIMETHYL-4-X-PYRIMIDIN-2-YL)-3-METHYL-PYRAZOLIN-5-ONES WITH AROMATIC DIAZONIUM SALTS

    المؤلفون: Panea, Ioan, Ghirişan, Adina, Cristea, Ioan, Gropeanu, Radu, Silberg, Ioan A.

    المصدر: Heterocyclic Communications ; volume 7, issue 6 ; ISSN 2191-0197 0793-0283

    الاتاحة: http://dx.doi.org/10.1515/hc.2001.7.6.563
    https://www.degruyter.com/document/doi/10.1515/HC.2001.7.6.563/pdf

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  12. 12
    Academic Journal
    ChemInform Abstract: Synthesis of Ketones by Oppenauer Oxidation

    المؤلفون: Ciocan‐Tarta, Ilie, Vlassa, Mircea, Silberg, Ioan A., Oprean, Ioan

    المصدر: ChemInform ; volume 31, issue 23 ; ISSN 0931-7597 1522-2667

    الاتاحة: http://dx.doi.org/10.1002/chin.200023086
    https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fchin.200023086
    https://onlinelibrary.wiley.com/doi/pdf/10.1002/chin.200023086

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  13. 13
    Academic Journal
    ChemInform Abstract: Synthesis and Stereochemistry of Some 1,3‐Oxazolidine Systems Based on TRIS (α,α,α‐Trimethylolaminomethane) and Related Aminopolyols Skeleton. Part 1. (Di)spiro‐1,3‐oxazolidines.

    المؤلفون: Darabantu, Mircea, Ple, Gerard, Silaghi‐Dumitrescu, Ion, Maiereanu, Carmen, Turos, Istvan, Silberg, Ioan A., Mager, Sorin

    المصدر: ChemInform ; volume 31, issue 40 ; ISSN 0931-7597 1522-2667

    الاتاحة: http://dx.doi.org/10.1002/chin.200040126
    https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fchin.200040126
    https://onlinelibrary.wiley.com/doi/pdf/10.1002/chin.200040126

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  14. 14
    Academic Journal
    Synthesis and Stereochemistry of Some 1,3-Oxazolidine Systems Based on TRIS (α,α,α-Trimethylolaminomethane) and Related Aminopolyols Skeleton. Part 1: (Di)spiro-1,3-oxazolidines

    المؤلفون: Darabantu, Mircea, Plé, Gérard, Silaghi-Dumitrescu, Ion, Maiereanu, Carmen, Turos, Istvan, Silberg, Ioan A, Mager, Sorin

    المصدر: Tetrahedron ; volume 56, issue 23, page 3785-3798 ; ISSN 0040-4020

    الاتاحة: http://dx.doi.org/10.1016/s0040-4020(00)00268-4
    https://api.elsevier.com/content/article/PII:S0040402000002684?httpAccept=text/plain
    https://api.elsevier.com/content/article/PII:S0040402000002684?httpAccept=text/xml

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  15. 15
    Academic Journal
    In the electron impact mass spectra ofN,N′-diaryl-1,3-phenylenediamines, recorded under conditions generating the molecular ion as a base peak, the most important step involve a β-aromatic cleavage with H rearrangement, leading to the expulsion of a neutral arylamine; this fact can be used inmeta isomer identification since for the corresponding 1,2- and 1,4-isomers the expulsion of an aryl radical is a competitive process

    المؤلفون: Palibroda, Nicolae, Cristea, Castelia, Silberg, Ioan A., Chirtoc, Ileana

    المصدر: Rapid Communications in Mass Spectrometry ; volume 13, issue 21, page 2227-2227 ; ISSN 0951-4198 1097-0231

    الاتاحة: http://dx.doi.org/10.1002/(sici)1097-0231(19991115)13:21%3C2227::aid-rcm769%3E3.0.co%3B2-r
    https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2F(SICI)1097-0231(19991115)13:21%3C2227::AID-RCM769%3E3.0.CO%3B2-R
    https://onlinelibrary.wiley.com/doi/full/10.1002/(SICI)1097-0231(19991115)13:21%3C2227::AID-RCM769%3E3.0.CO%3B2-R

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  16. 16
    Academic Journal
    Application of phase transfer catalysis (PTC) without solvent in organic synthesis. IV. SelectiveO-Alkylation of Hydroxy-phenothazine and Hydroxy-diphenylamine Derivatives

    المؤلفون: Vlassa, Mircea, Silberg, Ioan A., G?in?, Luiza I.

    المصدر: Journal f�r Praktische Chemie/Chemiker-Zeitung ; volume 340, issue 6, page 576-577 ; ISSN 0941-1216 1521-3897

    الاتاحة: http://dx.doi.org/10.1002/prac.19983400613
    https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fprac.19983400613
    https://onlinelibrary.wiley.com/doi/full/10.1002/prac.19983400613

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  17. 17
    Academic Journal
    AROMATICITY OF THIAZOLE III. THE TRANSMISSION OF SUBSTITUENT EFFECTS AND THE POLARIZABILITY OF THE ELECTRONIC SYSTEM OF THIAZOLE

    المؤلفون: Silberg, Ioan A., Silberg, Simona, Ghirisan, Adina

    المصدر: Heterocyclic Communications ; volume 3, issue 1 ; ISSN 2191-0197 0793-0283

    الاتاحة: http://dx.doi.org/10.1515/hc.1997.3.1.35
    https://www.degruyter.com/document/doi/10.1515/HC.1997.3.1.35/pdf

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  18. 18
    Academic Journal
    REACTIONS OF THE 3-CYANO-10-METHYL-PYRIDO[3,2-g]QUINOLIN-4-ONE. II.

    المؤلفون: MOLDOVAN, CLAUDIA, CRISTEA, CASTELIA, SILBERG, IOAN A., MAHAMOUD, ABDALLAH, UDREA, SILVIA, BARBE, JACQUES

    المصدر: Studia Universitatis Babes-Bolyai, Chemia; Apr2006, Vol. 51 Issue 1, p21-25, 5p

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  19. 19
    Academic Journal
    GRAPHITE ELECTRODE MODIFIED BY CHARGE TRANSFER COMPLEX BETWEEN TETRACYANOQUINODIMETHANE AND 16H,18H-DIBENZO[c,1]-7,9-DITHIA-16,18-DIAZAPENTACENE USED FOR NADH ELECTRO-OXIDATION.

    المؤلفون: GLIGOR, DELIA, SOCOL, MARIUS, POPESCU, IONEL CATALIN, CRISTEA, CASTELIA, SILBERG, IOAN ALEXANDRU

    المصدر: Studia Universitatis Babes-Bolyai, Chemia; Jun2004, Vol. 49 Issue 2, p123-130, 8p

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  20. 20
    Academic Journal
    REACTIONS OF THE 3-CYANO-10-METHYL- PYRIDO[3,2-g]QUINOLIN-4-ONE.

    المؤلفون: MOLDOVAN, CLAUDIA, CRISTEA, CASTELIA, SILBERG, IOAN A., MAHAMOUD, ABDALLAH, DELEANU, CALIN, BARBE, JACQUES

    المصدر: Studia Universitatis Babes-Bolyai, Chemia; Jun2004, Vol. 49 Issue 2, p118-122, 6p

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