Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Vytas Martynaitis"'
Autor:
Arminas Urbonavičius, Sonata Krikštolaitytė, Aurimas Bieliauskas, Vytas Martynaitis, Joana Solovjova, Asta Žukauskaitė, Eglė Arbačiauskienė, Algirdas Šačkus
Publikováno v:
Molecules, Vol 28, Iss 18, p 6599 (2023)
In this paper, an efficient synthetic route from pyrazole-chalcones to novel 6-aryl-5-hydroxy-2-phenylpyrano[2,3-c]pyrazol-4(2H)-ones as 3-hydroxyflavone analogues is described. The methylation of 5-hydroxy-2,6-phenylpyrano[2,3-c]pyrazol-4(2H)-one wi
Externí odkaz:
https://doaj.org/article/aff34657bd194933baa6f51cb5d3aa12
Autor:
Jolita Bruzgulienė, Greta Račkauskienė, Aurimas Bieliauskas, Vaida Milišiūnaitė, Miglė Dagilienė, Gita Matulevičiūtė, Vytas Martynaitis, Sonata Krikštolaitytė, Frank A. Sløk, Algirdas Šačkus
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 18, Iss 1, Pp 102-109 (2022)
A convenient and efficient synthesis of novel achiral and chiral heterocyclic amino acid-like building blocks was developed. Regioisomeric methyl 5-(N-Boc-cycloaminyl)-1,2-oxazole-4-carboxylates were prepared by the reaction of β-enamino ketoesters
Externí odkaz:
https://doaj.org/article/890bb481bb7c47578bcbfb8b10507530
Autor:
Vaida Milišiūnaitė, Rūta Paulavičiūtė, Eglė Arbačiauskienė, Vytas Martynaitis, Wolfgang Holzer, Algirdas Šačkus
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 15, Iss 1, Pp 679-684 (2019)
Fused pyrazole ring systems are common structural motifs of numerous pharmaceutically important compounds. Nevertheless, access to derivatives of the aromatic 2H-furo[2,3-c]pyrazole ring system is still quite limited, and their chemistry and function
Externí odkaz:
https://doaj.org/article/c31b2b962c4a4b2796a51b4c0f682e37
Autor:
Miglė Dagilienė, Giedrė Markuckaitė, Sonata Krikštolaitytė, Algirdas Šačkus, Vytas Martynaitis
Publikováno v:
Chemosensors, Vol 10, Iss 5, p 185 (2022)
This work provides a novel approach for the instant detection of CN− anions based on chromogenic 6-[(E)-(4-nitrophenyl)diazenyl]-1′,3,3′,4-tetrahydrospiro[chromene-2,2′-indole] derivatives. New colorimetric detectors were synthesized and char
Externí odkaz:
https://doaj.org/article/1ca479bf2ba64d888adaf1e31e2039b5
Autor:
Gernot A. Eller, Gytė Vilkauskaitė, Algirdas Šačkus, Vytas Martynaitis, Ashenafi Damtew Mamuye, Vittorio Pace, Wolfgang Holzer
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 14, Iss 1, Pp 1287-1292 (2018)
Dialkyl 5,5'-dioxo-4,4'-bipyrazole-4,4'-dicarboxylates are readily obtained by the reaction of 5-hydroxypyrazole-4-carboxylates in refluxing thionyl chloride. The obtained diesters can be transformed into the corresponding 4,4'-bipyrazoles via alkali
Externí odkaz:
https://doaj.org/article/e12202150669428fa6a67465407b6b4e
Autor:
Greta Ragaitė, Vytas Martynaitis, Kipras Redeckas, Vladislava Voiciuk, Mikas Vengris, Algirdas Šačkus
Publikováno v:
ARKIVOC, Vol 2014, Iss 5, Pp 271-290 (2014)
Externí odkaz:
https://doaj.org/article/6f2bfd52d2534f6dad331a85de128f2c
Autor:
Eglė Arbačiauskienė, Vytas Martynaitis, Sonata Krikštolaitytė, Wolfgang Holzer, Algirdas Šačkus
Publikováno v:
ARKIVOC, Vol 2011, Iss 11, Pp 1-21 (2011)
Externí odkaz:
https://doaj.org/article/825c53779a7a4cdd96e154be1a02d597
Autor:
Eglė Arbačiauskienė, Sonata Krikštolaitytė, Aiva Mitrulevičienė, Aurimas Bieliauskas, Vytas Martynaitis, Matthias Bechmann, Alexander Roller, Algirdas Šačkus, Wolfgang Holzer
Publikováno v:
Molecules, Vol 23, Iss 1, p 129 (2018)
The tautomerism of 1-phenyl-1,2-dihydro-3H-pyrazol-3-One was investigated. An X-ray crystal structure analysis exhibits dimers of 1-phenyl-1H-pyrazol-3-ol units. Comparison of NMR (nuclear magnetic resonance) spectra in liquid state (1H, 13C, 15N) wi
Externí odkaz:
https://doaj.org/article/e2487fa963fb478390076620624d15da
Autor:
Aurimas Bieliauskas, Vytas Martynaitis, Virginė Amankavičienė, Neringa Kleizienė, Živilė Žukauskaitė, Algirdas Šačkus, Wolfgang Holzer
Publikováno v:
Tetrahedron. 74:3679-3690
A one-pot synthesis of new polycyclic heterocyclic compounds was carried out via the condensation of 1-carbamoylmethyl-2,3,3-trimethyl-3H-indolium chloride with pyridine- and quinolinecarboxaldehydes. The heating of the aforementioned 3H-indolium sal
Autor:
Algirdas Šačkus, Wolfgang Holzer, Vittorio Pace, Vytas Martynaitis, Gernot A. Eller, Gytė Vilkauskaitė, Ashenafi Damtew Mamuye
Publikováno v:
Beilstein Journal of Organic Chemistry
Beilstein Journal of Organic Chemistry, Vol 14, Iss 1, Pp 1287-1292 (2018)
Beilstein Journal of Organic Chemistry, Vol 14, Iss 1, Pp 1287-1292 (2018)
Dialkyl 5,5'-dioxo-4,4'-bipyrazole-4,4'-dicarboxylates are readily obtained by the reaction of 5-hydroxypyrazole-4-carboxylates in refluxing thionyl chloride. The obtained diesters can be transformed into the corresponding 4,4'-bipyrazoles via alkali