Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Nageshwar Malhotra"'
Publikováno v:
Journal of Heterocyclic Chemistry. 29:1841-1845
Reactions of the diene 1-benzyloxy-2-methoxy-1,3-pentadiene-5-ol in intramolecular Diels-Alder reactions using maleic anhydride or fumaric acid ethyl ester is described. The new reactive diene is prepared starting from 3-methoxypyridine. The structur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::601e978ea1a6121bba9e0e7152652c60
https://doi.org/10.1002/jhet.5570290727
https://doi.org/10.1002/jhet.5570290727
Publikováno v:
Journal of Heterocyclic Chemistry. 28:1837-1839
A series of C-substituted pyrazoles have been N-alkylated. The alkylation occurs preferentially at the N-1 position when a tert-butyl group is present at the pyrazole C-3 position.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c89aba00d2803356663ef1fdefa5b0a4
https://doi.org/10.1002/jhet.5570280805
https://doi.org/10.1002/jhet.5570280805
Autor:
Thomas Hansen, S. Boewadt, Jeremy D. Kilburn, Jan Becher, K. S. Varma, Allan E. Underhill, Nageshwar Malhotra, Gustav Bojesen, B. Girmay
Publikováno v:
ChemInform. 21
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c75f1ab6b50953d5d185115a5ddce1b
https://doi.org/10.1002/chin.199015192
https://doi.org/10.1002/chin.199015192
Publikováno v:
ChemInform. 21
A series of novel macrocyclic systems have been prepared using 5-chloro-4-formyl pyrazoles (via selective N-1 alkylation) as heterocyclic building blocks; a binuclear NiII–TlI complex derived from such a ligand has also been characterised.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d92770befae74ee64cdf609db37de72d
https://doi.org/10.1002/chin.199014270
https://doi.org/10.1002/chin.199014270
Publikováno v:
Journal of the American Chemical Society. 112:3709-3710
Etude de la compoexation de metaux alcalins avec des ethers couronnes. Utilisation de la spectrometrie de masse de l'ion californium 252
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26385253cf9cd4dc02a23b5f295a81bc
https://doi.org/10.1021/ja00165a093
https://doi.org/10.1021/ja00165a093
Publikováno v:
HETEROCYCLES. 32:127
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b5193df9c6dd306f2546ea17b392623
https://doi.org/10.3987/rev-90-420
https://doi.org/10.3987/rev-90-420
Publikováno v:
J. Chem. Soc., Perkin Trans. 1. :653-656
N,N,-Dialkyl-N′-arylthioureas (1) with ethyl α-chloroacetoacetate, furnished dialkylamine hydrochlorides, aryl isothiocyanates, 2-arylimino-1,3-oxathioles (2), 2-arylimino-3-aryl-Δ4-thiazolines (3), diarylthioureas (9), and carbonyl sulphide. Wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7bc191f910096abc9c78532c3f1395a5
https://doi.org/10.1039/p19820000653
https://doi.org/10.1039/p19820000653
Publikováno v:
Tetrahedron. 40:4941-4946
ω-(2,6-Dimethyl-4-pyrimidinylthio-(4), 2-methyl-4-quinazolinylthio-(9), and 4-oxo-2-quinazo-linylthio)-(10) acetophenones with hydrochloric or perchloric acid provide 2,5-diaryl-1,4-dithiins (7) whereas α)-(6-methyl-4-pyrimidinylthio) acetophenones
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0744d38c584fde060ce65d7272e4af83
https://doi.org/10.1016/s0040-4020(01)91330-4
https://doi.org/10.1016/s0040-4020(01)91330-4
Publikováno v:
Tetrahedron. 40:4937-4939
4-(4-Quinazolinylthio)-butan-2-one and 3-(4-quinazolinylthio) propiophenone (4, R = CH3, C6H5) with POCl3 give 3-(3-oxobutyl)-4(3 H )-quinazolone and 3-(2-benzoylethyl)-4(3H)-quinazolone (7, R = CH3, C6H5, X = O) via S → N rearrangement followed by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57e1ed67138ce72a1ce2fe4e3171057a
https://doi.org/10.1016/s0040-4020(01)91329-8
https://doi.org/10.1016/s0040-4020(01)91329-8
Publikováno v:
Synthesis. 1983:791-793
Conversion d'arylimines de benzaldehyde, et d'isoquinoleine, quinoxaline et phtalazine en N-aryl benzamides et isoquinolone-1, quinoxalinedione-2,3 et phtalazinone-1 respectivement
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7504983d63f25848b61adf1e6e4dfd7c
https://doi.org/10.1055/s-1983-30513
https://doi.org/10.1055/s-1983-30513