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Croatica Chemica Acta, Vol. 38 No. 1, 1966.

Izvorni znanstveni članak

Hydropyrimidines. V. Isomeric Dihydro 2- and 4-0xopyrimidines

V. Škarić ; Institute »Ruder Boskovic«, Zagreb, Croatia, Yugoslavia
B. Gašpert ; Institute »Ruder Boskovic«, Zagreb, Croatia, Yugoslavia
I. Jerkunica ; Institute »Ruder Boskovic«, Zagreb, Croatia, Yugoslavia

Puni tekst: engleski, pdf (8 MB) str. 1-8 preuzimanja: 38* citiraj
APA 6th Edition
Škarić, V., Gašpert, B. i Jerkunica, I. (1966). Hydropyrimidines. V. Isomeric Dihydro 2- and 4-0xopyrimidines. Croatica Chemica Acta, 38 (1), 1-8. Preuzeto s https://hrcak.srce.hr/208178
MLA 8th Edition
Škarić, V., et al. "Hydropyrimidines. V. Isomeric Dihydro 2- and 4-0xopyrimidines." Croatica Chemica Acta, vol. 38, br. 1, 1966, str. 1-8. https://hrcak.srce.hr/208178. Citirano 08.03.2021.
Chicago 17th Edition
Škarić, V., B. Gašpert i I. Jerkunica. "Hydropyrimidines. V. Isomeric Dihydro 2- and 4-0xopyrimidines." Croatica Chemica Acta 38, br. 1 (1966): 1-8. https://hrcak.srce.hr/208178
Harvard
Škarić, V., Gašpert, B., i Jerkunica, I. (1966). 'Hydropyrimidines. V. Isomeric Dihydro 2- and 4-0xopyrimidines', Croatica Chemica Acta, 38(1), str. 1-8. Preuzeto s: https://hrcak.srce.hr/208178 (Datum pristupa: 08.03.2021.)
Vancouver
Škarić V, Gašpert B, Jerkunica I. Hydropyrimidines. V. Isomeric Dihydro 2- and 4-0xopyrimidines. Croatica Chemica Acta [Internet]. 1966 [pristupljeno 08.03.2021.];38(1):1-8. Dostupno na: https://hrcak.srce.hr/208178
IEEE
V. Škarić, B. Gašpert i I. Jerkunica, "Hydropyrimidines. V. Isomeric Dihydro 2- and 4-0xopyrimidines", Croatica Chemica Acta, vol.38, br. 1, str. 1-8, 1966. [Online]. Dostupno na: https://hrcak.srce.hr/208178. [Citirano: 08.03.2021.]

Sažetak
Desulfurization of, thio analogs of 5,f.-dihydrouracil and partial
hydrogenation of oxopyrimidines* were investigated as synthetic
routes for the preparation of isomeric dihydropyrimidines.
The synthesis of unstable 1-methyl-5,6-dihydro-4-oxopyrimidine
(IX) from 1-methyl-5,6-dihydro-2-thiouracil (X) is described.
Desulfurization of 5,6-dihydro-2-thiouracil (XV) and its 3-methyl
derivative (XI) afforded the corresponding dihydro-4-oxo-pyrimidines
XVI and XII having the double bond at 1V.2 position. The
structures of XII and XVI were confirmed by hydrogenation to the
tetrahydro compounds XVII and XIII.
The more stable dihydro-2-oxopyrimidines III, IV and XIX were
prepared from the corresponding 4-thiouracils XX, XXI and
XVIII. The NMR spectra of 2- and 4-oxopyrimidines, their dihydro
and tetrahydro derivatives as well as of 5,6-dihydrouracil and its
thio analogs are discussed.

Hrčak ID: 208178

URI
https://hrcak.srce.hr/208178

Posjeta: 80 *