Zobrazeno 1 - 10
of 26
pro vyhledávání: '"I. Mazheika"'
Publikováno v:
Chemistry of Heterocyclic Compounds. 35:1415-1422
2-Acetyl-5-methyl-4-nitrofuran and 3,5-dinitro-α-methylfuran were obtained by the reaction of 70% nitric acid with 2-acetyl-5-methylfuran, its oxime and semicarbazone in concentrated H2SO4. ω-Bromonitro ketone and a series of 5-methyl-4-nitro-2-fur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efd2bdb300d6c88ddd105339a9d3543d
https://doi.org/10.1007/bf02251814
https://doi.org/10.1007/bf02251814
Autor:
Gagik Melikyan, A. A. Avetisyan, Juris Popelis, Edmunds Lukevics, L. Leite, D. Jansone, I. Mazheika, M. Fleisher
Publikováno v:
Chemistry of Heterocyclic Compounds. 34:267-270
Upon reaction of nitrogen-containing heterocyclic aldehydes with 3-cyano-4,5,5-trimethyl-2(5H)-furanone and 3-cyano-4,6,6-trimethyl-2-(5,6-dihydro)pyrone, products of crotonic condensation and compounds of the Michael adduct type are formed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::493f24640f00685591a42caf2e7a6013
https://doi.org/10.1007/bf02290714
https://doi.org/10.1007/bf02290714
Publikováno v:
Chemistry of Heterocyclic Compounds. 33:171-174
A method was developed for the synthesis of thienylhydrogermanes RnGeH4−n (where R=2-thienyl, n=1–3), involving the reduction of the corresponding ethoxygermanes by lithium aluminum hydride under the conditions of phase-transfer catalysis. The tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::298bfda345a2b6e21250dba5e7b31250
https://doi.org/10.1007/bf02256758
https://doi.org/10.1007/bf02256758
Publikováno v:
Atomic Energy. 75:964-970
The objective of this investigation was to examine the tritium content in the waters near the Ignalin nuclear Power Plant (RBMK-1500) in Lithuania. This is an important environmental problem due to the weak circulation of the cooling reservoir (Lake
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9eb823091aea33c6f79603b94f4793fd
https://doi.org/10.1007/bf00760580
https://doi.org/10.1007/bf00760580
Publikováno v:
Chemistry of Heterocyclic Compounds. 29:754-761
A review summarizing material on the mass spectrometry of furyl and thienyl derivatives of the Group IVB elements.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae9677c0027a1cc05cdd8ee8c4a419f9
https://doi.org/10.1007/bf00528886
https://doi.org/10.1007/bf00528886
Publikováno v:
ChemInform. 25
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e79348ec30d584632ef6e6d75bbb9a25
https://doi.org/10.1002/chin.199418296
https://doi.org/10.1002/chin.199418296
Publikováno v:
ChemInform. 28
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be48471339028eb3b4b63e2d0d954515
https://doi.org/10.1002/chin.199727184
https://doi.org/10.1002/chin.199727184
Publikováno v:
ChemInform. 31
The alkylation of aryl and hetaryl methyl ketones by propargyl bromide using the phase-transfer catalysis system KOH (s)/18-crown-6/benzene is studied. The corresponding C-trialkylated products are selectively obtained in 34–78% yields.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::471b64e11b461058b2c8116453b2cde3
https://doi.org/10.1002/chin.200008069
https://doi.org/10.1002/chin.200008069
Publikováno v:
Chemistry of Heterocyclic Compounds. 36:134-136
The reaction of 70% HNO with ethyl 5-methyl-2-furancarboxylate in concentrated H2SO4 gave the corresponding 4-nitro derivative and ethyl 5-formyl-2-furancarboxylate. Only 4-nitro derivative, which was converted into amidoxime, was obtained from 5-met
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80a54219de8bc77d0ba587cefde84fe0
https://doi.org/10.1007/bf02283540
https://doi.org/10.1007/bf02283540
Publikováno v:
Chemistry of Heterocyclic Compounds. 35:436-438
The alkylation of aryl and hetaryl methyl ketones by propargyl bromide using the phase-transfer catalysis system KOH (s)/18-crown-6/benzene is studied. The corresponding C-trialkylated products are selectively obtained in 34–78% yields.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c32bdac2ca087c8a4f0e5acf58073c0
https://doi.org/10.1007/bf02319330
https://doi.org/10.1007/bf02319330