ITA
ENG

REGIOSELECTIVE PREPARATION OF 3,4-DIHYDRO ETHYL-2H,6H-[1,3]-THIAZINO[2,3-B]QUINAZOLIN-6-ONES AND HYDRO-3-METHYL-5H-THIAZOLO[2,3-B]QUINAZOLIN-5-ONES AS WELL AS ANALOGOUS POLYCYCLIC PYRIMIDINONE DERIVATIVES FROMCONDENSED 2-ALKENYLTHIOPYRIMIDINE-4(3H)-ONES

Authors

WIPPICH P HENDREICH C GUTSCHOW M LEISTNER S

Citation

P. Wippich et al., REGIOSELECTIVE PREPARATION OF 3,4-DIHYDRO ETHYL-2H,6H-[1,3]-THIAZINO[2,3-B]QUINAZOLIN-6-ONES AND HYDRO-3-METHYL-5H-THIAZOLO[2,3-B]QUINAZOLIN-5-ONES AS WELL AS ANALOGOUS POLYCYCLIC PYRIMIDINONE DERIVATIVES FROMCONDENSED 2-ALKENYLTHIOPYRIMIDINE-4(3H)-ONES, Synthesis, (6), 1996, pp. 741

Citations number

Categorie Soggetti

Chemistry Inorganic & Nuclear

Journal title

Synthesis → ACNP

ISSN journal

00397881

Issue

Year of publication

1996

Database

ISI

SICI code

0039-7881(1996):6<741:RPO3E>2.0.ZU;2-K

Abstract

Acid-catalysed reaction of condensed 2-crotylthiopyrimidinones 3 led r egioselectively to fused -dihydro-4-methyl-2H,6H-[1,3]thiazinopyrimidi nones 7. On the other hand, cyclization of 2-allylthio-pyrimidinones 2 under the same conditions resulted in the formation of 2,3-dihydro-3- methyl-5H-thiazolo-pyrimidinones 4.