1255948-99-2Relevant academic research and scientific papers
Synthesis of N-{5-Oxo-2-thioxo(2,5-dithioxo)hexahydroimidazo-[4,5-d]imidazol-1(2H)-yl}formamides
Gazieva, Galina A.,Karpova, Tatyana B.,Nechaeva, Tatyana V.,Nelyubina, Yulia V.,Zanin, Igor E.,Kravchenko, Angelina N.
, p. 858 - 862 (2017)
A synthetic route to novel N-{5-oxo-2-thioxo(2,5-dithioxo)hexahydroimidazo[4,5-d]imidazol-1(2H)-yl}formamides, by a tandem N-formylation and ring-contraction reaction of 5,7-disubstituted 3-thioxoperhydroimidazo[4,5-e]-1,2,4-triazine-6-ones(thiones) with formic acid, has been developed.
Synthesis of 1,3-dialkyl-4-[(arylmethylidene)amino]glycolurils
Es’kova, Marina А.,Gazieva, Galina А.,Kolotyrkina, Natalya G.,Kostikova, Natalya N.,Serkov, Sergei А.,Sigay, Natalya V.,Volkhina, Tatyana N.
, p. 646 - 655 (2021/07/06)
[Figure not available: see fulltext.] A method for the synthesis of 1,3-dialkyl-4-[(arylmethylidene)amino]glycolurils was developed based on nucleophilic substitution of the sulfur atom with the oxygen atom in the corresponding thioglycolurils via alkylation of the latter followed by acid hydrolysis of alkylsulfanyl derivatives of thioglycolurils, both with the isolation of alkylsulfanyl intermediates and by the one-pot method. The structure of the synthesized compounds was confirmed by X-ray structural analysis of several examples.
A novel synthesis of thioglycolurils by ring contraction of 5,7-dialkyl-3-thioxoperhydroimidazo[4,5- e ]-1,2,4-triazin-6-ones
Gazieva, Galina A.,Poluboyarov, Pavel A.,Kolotyrkina, Natalya G.,Kravchenko, Angelina N.,Makhova, Nina N.,Popov, Leonid D.
, p. 3366 - 3370,5 (2012/12/12)
A new synthetic route to (E)-1,3-dialkyl-4-(benzylideneamino)-5- thioxohexahydroimidazo[4,5-d]imidazol-2(1H)-ones (thioglycolurils), by a ring contraction reaction of 5,7-dialkyl-3-thioxoperhydroimidazo[4,5-e]-1,2,4- triazin-6-ones with aromatic aldehydes, has been developed.
Cyclization of 1,3-dialkyl-4,5-bis(1-thiosemicarbazido)-imidazolidin-2- ones(thiones) with aromatic aldehydes
Gazieva, Galina A.,Vasilevskii, Sergei V.,Belyakov, Pavel A.,Nelyubina, Yulia V.,Lubuzh, Elena D.,Kravchenko, Angelina N.
scheme or table, p. 285 - 287 (2011/05/15)
Cyclization of 1,3-dialkyl-4,5-bis(1-thiosemicarbazido)imidazolidin-2- ones(thiones) with aromatic aldehydes under acidic catalysis affords 1,3-dialkyl-4-(arylideneamino)-5-thioxohexahydroimidazo[4,5-d]imidazol-2(1H) -ones and 5,7-dialkyltetrahydro-1H-imidazo[4,5-e]-1,2,4-triazine-3,6(2H,4H)- dithiones.
