Róbert Fischer

ORCID: 0000-0002-7565-168X
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Research Areas
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Fluorine in Organic Chemistry
  • Synthesis and Catalytic Reactions
  • Chemical Synthesis and Reactions
  • Synthesis and Reactions of Organic Compounds
  • Animal Virus Infections Studies
  • Chemical Synthesis and Analysis
  • Organic Chemistry Cycloaddition Reactions
  • Asymmetric Synthesis and Catalysis
  • Vector-Borne Animal Diseases
  • Synthesis of heterocyclic compounds
  • Carbohydrate Chemistry and Synthesis
  • Synthetic Organic Chemistry Methods
  • Viral Infections and Vectors
  • Synthesis and Biological Evaluation
  • Mosquito-borne diseases and control
  • Virus-based gene therapy research
  • Synthesis and Reactivity of Heterocycles
  • Viral Infections and Immunology Research
  • Metal complexes synthesis and properties
  • Cervical Cancer and HPV Research
  • Viral Infectious Diseases and Gene Expression in Insects
  • Electron Spin Resonance Studies
  • Coordination Chemistry and Organometallics

Slovak University of Technology in Bratislava
2015-2024

Sun Yat-sen University
2021

Université Laval
2021

Justus-Liebig-Universität Gießen
2021

Rutgers, The State University of New Jersey
2021

Kunming University of Science and Technology
2021

Wuyi University
2021

Zhengzhou University
2021

Nara University of Education
2021

Mokpo National University
2021

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNew method for selective monofluorination of aromatics using silver difluorideArnold Zweig, Robert G. Fischer, and John E. LancasterCite this: J. Org. Chem. 1980, 45, 18, 3597–3603Publication Date (Print):August 1, 1980Publication History Published online1 May 2002Published inissue 1 August 1980https://pubs.acs.org/doi/10.1021/jo01306a011https://doi.org/10.1021/jo01306a011research-articleACS PublicationsRequest reuse permissionsArticle...

10.1021/jo01306a011 article EN The Journal of Organic Chemistry 1980-08-01

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructural characterization of tris(N,N-di-n-butyldithiocarbamato)nickel(IV) bromide. A Ni-S6 complex with unusual chemical propertiesJohn P. Fackler Jr., Alex Avdeef, and Robert G. FischerCite this: J. Am. Chem. Soc. 1970, 92, 23, 6972–6974Publication Date (Print):November 1, 1970Publication History Published online1 May 2002Published inissue 1 November...

10.1021/ja00726a045 article EN Journal of the American Chemical Society 1970-11-01

ESCA measurements on a series of gold compounds reveal monotonic relationship between binding energies the Au 4f levels and formal oxidation states, provides first evidence for state –1 in CsAu RbAu.

10.1039/c39780000905 article EN Journal of the Chemical Society Chemical Communications 1978-01-01

SummaryIn experiments in which cockroaches, Periplaneta americana, were fed a single meal containing member of the Coxsackie group viruses, results proved that test roaches excreted daily over period as many 15 days sufficient virus to paralyze and kill mice. Control other tests showed lethal effect was due infection by not from extraneous bacterial or viral infection.The significance these relation natural transmission dissemination viruses remains be determined.

10.4269/ajtmh.1951.s1-31.238 article EN ˜The œAmerican journal of tropical medicine. 1951-03-01

New chiral nitrones 7 and 12, easily prepared from d-xylose by multistep synthetic routes, undergo regioselective 1,3-dipolar cycloadditions with N-vinylated bases (uracil, adenine) giving isoxazolidinyl nucleosides in good yields. Attack of the dipolarophile on Z-configuration nitrone through exo endo transition states si face (C-1′/C-3 erythro) affords C-3/C-5 cis (exo) trans (endo) isoxazolidines as two major isomers.

10.1055/s-2002-32579 article EN Synlett 2002-01-01

A new synthetic approach to racemic 3,4-<i>cis</i>- and 3,4-<i>trans</i>-isoxazoldine-4,5-diols their derivatives is presented. Dihydroxylation reactions of 3-substituted 2,3-dihydroisoxazoles with K<sub>2</sub>OsO<sub>4</sub>·2H<sub>2</sub>O in the presence NMO acetone–water proceeded from less hindered side provided major 3,4-<i>trans</i>-isoxazolidine-4,5-diols moderate good yields. 3,4-<i>cis</i>-5-Methoxyisoxazolidin-4-ol was prepared diastereoselectively mixture...

10.1055/s-0033-1339674 article EN Synlett 2013-08-27

Cottontail papilloma tissue stored in 50% glycerine at 4°C remains infective and capable of producing confluent papillomatosis for as long 20 years. All 6 the tissues tested after storage from to years were found viable. This seems establish that Shope virus is extremely stable when under refrigeration.

10.3181/00379727-64-15827 article EN Experimental Biology and Medicine 1947-04-01

In experiments in which cockroaches, Periplaneta americana, were fed a single meal containing the virus of mouse encephalomyelitis, GD VII strain, proof was obtained that test cockroaches daily over period as many 7 days excreted sufficient to kill mice. Control showed lethal effect from infection by and not extraneous bacterial or viral infection.

10.3181/00379727-74-17882 article EN Experimental Biology and Medicine 1950-06-01

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRye Oil. II. Properties as Affected by Choice of MenstruumAlbert W. Stout, H. A. Schuette, and R. G. FischerCite this: J. Am. Chem. Soc. 1934, 56, 1, 210–211Publication Date (Print):January 1934Publication History Published online1 May 2002Published inissue 1 January 1934https://pubs.acs.org/doi/10.1021/ja01316a066https://doi.org/10.1021/ja01316a066research-articleACS PublicationsRequest reuse permissionsArticle Views19Altmetric-Citations4LEARN...

10.1021/ja01316a066 article EN Journal of the American Chemical Society 1934-01-01

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTHE ACTION OF α-ACYLATED PHENYLHYDRAZINES ON THE CHLORINE DERIVATIVES QUINONES.William McPherson and Robert FischerCite this: J. Am. Chem. Soc. 1900, 22, 3, 141–144Publication Date (Print):March 1, 1900Publication History Published online1 May 2002Published inissue 1 March 1900https://pubs.acs.org/doi/10.1021/ja02041a006https://doi.org/10.1021/ja02041a006research-articleACS PublicationsRequest reuse permissionsArticle...

10.1021/ja02041a006 article EN Journal of the American Chemical Society 1900-03-01

A short and effective method for preparation isolation of furan-2,5-dicarboxylic acid has been developed.Furan-2,5-dicarboxylic was prepared directly from furan-2-carboxylic in one step under strong basic conditions using carbon dioxide.This allows to obtain the product with high added value, acid, natural sources such as hemicelluloses containing pentoses.

10.3998/ark.5550190.p008.285 article EN cc-by ARKIVOC 2013-12-11

A new approach to C5-hydroxymethyl-substituted pyrrolizidines involving 1,3-dipolar cycloaddition of a <sc>d</sc>-mannose-derived cyclic nitrone and the S<sub>N</sub>-reaction silyl ketene acetal is presented. The synthesis shows good stereoselectivity as result presence dioxolane substituent at C5 nitrone, bulkiness acetal, shape pyrrolizidinylium intermediate formed during intramolecular reductive amination. This provides access with same relative configuration that found in hyacinthacines...

10.1055/s-0033-1339123 article EN Synlett 2014-06-03

The synthesis of new N ‐carbamoyl‐substituted isoxazolidine‐4,5‐diols and their 4,5‐anhydro analogues, isoxazolidinyl epoxides, is described. 4,5‐unsubstituted 2,3‐dihydroisoxazole starting materials reacted directly with potassium osmate/4‐methylmorpholine ‐oxide 3,3‐dimethyldioxirane, respectively. All addition reactions proceeded excellent anti selectivity respect to the substituent at C‐3. obtained epoxides as well benzoylated were subjected nucleophilic substitution various...

10.1002/ejoc.201600471 article EN European Journal of Organic Chemistry 2016-07-25

Quantitative infectivity studies with 6 insect species, Aedes taeniorhynchus, triseriatus, Anopheles quadrimaculatus, Culex pipiens pipiens, quinquefasciatus and Stomoxys calcitrans, showed that RE virus remained infectious up to 24 hr in the insects tested but did not reappear at later time periods coincidental insects' feeding habits. Biological transmission of by these is therefore considered unlikely. ticks, on other hand, for least one day Argas ticks week Ornithodoros ticks. However,...

10.1093/jmedent/8.5.486 article EN Journal of Medical Entomology 1971-12-15
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