Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Andrzej, Łopusiński"'
Autor:
Prasad L. Polavarapu, Wanda Wieczorek, Małgorzata Szyrej, Jaroslaw Blaszczyk, Ana G. Petrovic, Dorota Krasowska, Andrzej Łopusiński, Józef Drabowicz
Publikováno v:
The Journal of Organic Chemistry. 85:14456-14466
The absolute configuration and conformations of (−)-tert-butylphenylphosphinoamidate were determined using three different chiroptical spectroscopic methods, namely vibrational circular dichroism (...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62ec4a0db51d929ff6f8fd05e968404e
https://doi.org/10.1021/acs.joc.0c00756
https://doi.org/10.1021/acs.joc.0c00756
Autor:
Ana G, Petrovic, Prasad L, Polavarapu, Andrzej, Łopusiński, Dorota, Krasowska, Wanda, Wieczorek, Małgorzata, Szyrej, Jarosław, Błaszczyk, Józef, Drabowicz
Publikováno v:
The Journal of Organic Chemistry
The absolute configuration and conformations of (−)-tert-butylphenylphosphinoamidate were determined using three different chiroptical spectroscopic methods, namely vibrational circular dichroism (VCD), electronic circular dichroism (ECD), and opti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::51b25ebc5041bc6cee359d370d59e0f2
https://pubmed.ncbi.nlm.nih.gov/32786637
https://pubmed.ncbi.nlm.nih.gov/32786637
Autor:
Małgorzata Szyrej, Andrzej Łopusiński, Wanda Wieczorek, Patrycja Pokora-Sobczak, Józef Drabowicz, Anna Aftyka, Malgorzata Urbaniak, Dorota Krasowska
Publikováno v:
Phosphorus, Sulfur, and Silicon and the Related Elements. 190:681-690
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a329314bdcad5eaf18b10270f499f732
https://doi.org/10.1080/10426507.2014.974096
https://doi.org/10.1080/10426507.2014.974096
Autor:
Grażyna Mielniczak, Andrzej Łopusiński
Publikováno v:
Heteroatom Chemistry. 19:530-536
It is reported that the diethyl N-sulfinylphosphoramidate (1a) is oxidized with iodoso- and/or iodoxybenzene as well as with organic peroxides, to give diethyl N-sulfonylphosphoramidate (7a). The latter was generated in situ at low temperature and tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19fa1b2dd7c6e7258a67890f6ec14a08
https://doi.org/10.1002/hc.20474
https://doi.org/10.1002/hc.20474
Autor:
Andrzej Łopusiński, Grażyna Mielniczak
Publikováno v:
Heteroatom Chemistry. 14:121-127
Ammonium dialkyl phosphoroselenoates are directly converted into the dialkyl phosphoramidates by iodosobenzene and iodoxybenzene. The inversion of configuration at the phosphorus atom, using model diastereoisomeric ammonium cis- and trans-2-oxo-2-sel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7392cd368c86d428eaff5b3bcc1a068f
https://doi.org/10.1002/hc.10110
https://doi.org/10.1002/hc.10110
Autor:
Andrzej Łopusiński, Grażyna Mielniczak
Publikováno v:
Synthetic Communications. 31:3659-3664
Ammonium O,O-dialkyl phosphorothioate and O,O-dialkyl phosphoroselenoate were conveniently synthesized from dialkyl phosphites and elemental sulfur and selenium in liquid ammonia in good yields.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8adb3fcace6e7cfad4af8a952d365716
https://doi.org/10.1081/scc-100107016
https://doi.org/10.1081/scc-100107016
Autor:
Grażyna Mielniczak, Andrzej Łopusiński
Publikováno v:
Heteroatom Chemistry. 10:61-67
The reactions of phosphorochloridites 5a–c with an equimolar amount of 1,2-thiazetidine 1,1-dioxide (2) or L(−)-3-carboethoxy-1,2-thiazetidine 1,1-dioxide (7) in the presence of triethylamine, affords the N-phosphitylated β-sultams 6a–b and L(
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f028ddcae6988e665c67a99516a4d286
https://doi.org/10.1002/(sici)1098-1071(1999)10:1<61::aid-hc11>3.0.co
https://doi.org/10.1002/(sici)1098-1071(1999)10:1<61::aid-hc11>3.0.co
Publikováno v:
Tetrahedron. 54:9731-9746
A stereospecific synthesis of P-chiral sulfenyl chlorides 6a,b has been developed from P-chiral sulfenylamide 9a,b,c by a novel procedure employing 2Me 3 SiCl + 2EtOH as the reagent of choice. The sulfenylamides 9a,b,c were prepared either by stereos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b430fa74dd770f615d807852e6df1034
https://doi.org/10.1016/s0040-4020(98)00529-8
https://doi.org/10.1016/s0040-4020(98)00529-8
Autor:
Andrzej Łopusiński
Publikováno v:
Heteroatom Chemistry. 15:395-397
A new and efficient route for synthesis of diethyl phosphorocyanidate 7a by decomposition of diethyl phosphoryl-1,2,4,-dithiazolin-5-one is described. © 2004 Wiley Periodicals, Inc. Heteroatom Chem 15:395–397, 2004; Published online in Wiley Inter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2fa0afe684e8a1dfc1da777ae6150b1
https://doi.org/10.1002/hc.20027
https://doi.org/10.1002/hc.20027
Publikováno v:
Heteroatom Chemistry. 6:365-370
An efficient procedure is described that leads to pure (SP)-O-l-menthylphenylthiophosphinate. The absolute configuration of this diastereomer was assigned by chemical correlation and confirmed by X-ray crystallography. The reaction of the isomer with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39bc2158cca5c35e04ba1e017e38e575
https://doi.org/10.1002/hc.520060414
https://doi.org/10.1002/hc.520060414