1980
DOI: 10.1007/bf00949170
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Chemistry of bicyclic ureas. 5. Synthesis of 2,4,6,8-tetraazabicyclo[3.3.0]-3-octanone-7-thiones

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Cited by 10 publications
(13 citation statements)
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“…We also specified the structural factors and found the reaction conditions that favor the formation of 5,7 dialkyl 3 thioxoperhydroimid azo[4,5 e] [1,2,4]triazin 6 ones, 4,5 bis[3 thiosemi carbazido(guanidinoamino)]imidazolidin 2 ones, or 1,3 dialkyl 4 (guanidinoimino)imidazolidin 2 ones. 4,5 Bis(guanidinoamino) 1,3 dimethylimidazolidin 2 one dihydrochloride dihydrate was found to crystallize as a conglomerate.…”
Section: R = H (A) Me (B) Et (C)mentioning
confidence: 99%
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“…We also specified the structural factors and found the reaction conditions that favor the formation of 5,7 dialkyl 3 thioxoperhydroimid azo[4,5 e] [1,2,4]triazin 6 ones, 4,5 bis[3 thiosemi carbazido(guanidinoamino)]imidazolidin 2 ones, or 1,3 dialkyl 4 (guanidinoimino)imidazolidin 2 ones. 4,5 Bis(guanidinoamino) 1,3 dimethylimidazolidin 2 one dihydrochloride dihydrate was found to crystallize as a conglomerate.…”
Section: R = H (A) Me (B) Et (C)mentioning
confidence: 99%
“…
Optimum conditions for the targeted synthesis of 5,7 dialkyl 3 thioxoperhydroimid azo[4,5 e] [1,2,4]triazin 6 ones, 4,5 bis(3 thiosemicarbazido(guanidinoamino))imidazolidin 2 ones, and 1,3 dialkyl 4 (guanidinoimino)imidazolidin 2 ones by α ureidoalkylation of thiosemicarbazide or aminoguanidine were found. A novel conglomerate in the series of imidazolidin 2 one derivatives was detected: 4,5 bis(guanidinoamino) 1,3 dimethylimid azolidin 2 one dihydrochloride dihydrate.
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mentioning
confidence: 98%
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“…5 Only few examples of the synthesis of glycoluril heteroanalogs by condensation of ureas with 4,5 dihydroxy imidazolidine 2 thiones (DHIT) have been published. 6,7 The present work is devoted to α thioureidoalkylation of urea heteroanalogs (thiosemicarbazide, aminoguani dine, sulfamide, and sulfonamides) with DHIT 8a-c and development of the synthetic methods towards novel imidazolidine 2 thione derivatives.…”
mentioning
confidence: 99%