ISSN:
0170-2041
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Treatment of 2-chloro-4,5-dihydroimidazolium hydrogen sulfate (1) with ammonium thiocyanate results in the formation of 7,8-dihydroimidazo[1,2-a]-1,3,5-triazine-2,4(3H,6H)-dithione (3), which undergoes selective alkylation under alkaline conditions to give 2-(alkylthio)-7,8-dihydroimidazo[1,2-a]-1,3,5-triazine-4(6H)-thiones 4a-f. 2-Methylthio derivative 4a serves as a substrate for the synthesis of 2,3-dihydroimidazo[1,2-a]-[1,2,4]triazolo[4,3-c][1,3,5]triazine-5(6H)-thione (7). The structure of 4c is proved by X-ray analysis.
Additional Material:
2 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jlac.198719870816
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