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@article{492397, author = {Verner, Jiří and Potáček, Milan}, article_location = {Warsaw}, article_number = {1}, keywords = {1;4-diazabuta-1;3-dienes; criss-cross cycloaddition; perhydroimidazo[4;5-d]imidazole-2;5- dithiones; 1;3-dipole intermediate; 5-(4-substituted phenylamino)-3-(4-substituted phenyl)2-oxoimidazolidin-4-yl acetate}, language = {eng}, issn = {1644-3624}, journal = {Central European Journal of Chemistry}, title = {Aromatic glyoxalimines in criss-cross cycloaddition reactions}, volume = {2/2004}, year = {2004} }
TY - JOUR ID - 492397 AU - Verner, Jiří - Potáček, Milan PY - 2004 TI - Aromatic glyoxalimines in criss-cross cycloaddition reactions JF - Central European Journal of Chemistry VL - 2/2004 IS - 1 SP - 220-233 EP - 220-233 SN - 16443624 KW - 1;4-diazabuta-1;3-dienes KW - criss-cross cycloaddition KW - perhydroimidazo[4;5-d]imidazole-2;5- dithiones KW - 1;3-dipole intermediate KW - 5-(4-substituted phenylamino)-3-(4-substituted phenyl)2-oxoimidazolidin-4-yl acetate N2 - Aromatic 1,4-diazabuta-1,3-dienes in glacial acetic acid with thiocyanates produce via criss-cross cycloaddition reactions the corresponding perhydroimidazo[4,5-d]imidazole-2,5- dithiones. When a mixture of thiocyanate and cyanate in a proper ratio was reacted together, nonsymmetrical 5-thioxo-perhydroimidazo[4,5-d]imidazole-2-ones were isolated. With cyanates substituted aromatic 1,4-diazabuta-1,3-dienes afforded product of acetic acid addition to primary formed 1,3-dipole intermediate 5-(4-substituted phenylamino)-3-(4-substituted phenyl)2-oxoimidazolidin-4-yl acetate. ER -
VERNER, Jiří and Milan POTÁČEK. Aromatic glyoxalimines in criss-cross cycloaddition reactions. \textit{Central European Journal of Chemistry}. Warsaw, 2004, 2/2004, No~1, p.~220-233. ISSN~1644-3624.
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