Search
Search Results
-
A General Approach to 4-unsubstituted and 4-alkyl-substituted 5-acyl-1,2,3,4-tetrahydropyrimidine-2-thiones(ones) via α-(thio)ureidoalkylation of 1,3-diketones or β-oxoesters
A new general approach to a large variety of hitherto hardly accessible 4-unsubstituted and 4-alkyl-substituted...
-
Synthesis of Nitrogen-containing Heterocyclic Compounds by Ring Enlargement Reactions through Bicyclic Cyclopropane Intermediates (Review)
Papers on the synthesis of nitrogen-containing heterocyclic compounds by ring enlargement reactions based on the formation of an annelated...
-
Domino reactions in the synthesis of tetrahydropyrimidin-2(1H)-ones(thiones) annelated at the N(1)–C(6) bond (Review)
Information relating to the synthesis of tetrahydropyrimidin-2(1 H )-ones(thiones), annelated at the N(1)–C(6) bond, by cascade cyclization of...
-
α-Thioureidoalkylation of 4-alkyl- and 4-phenylthiosemicarbazides
Previously unknown 1,3-dialkyl-4,5-bis[4-alkyl(phenyl)thiosemicarbazido]imidazolidine-2-thiones and 4,5,7-trialkylperhydroimidazo[4,5- e ]-1,2,4-triazin...
-
4,5-Dihydroxyimidazolidin-2-ones in an α-ureidoalkylation reaction of N-(carboxyalkyl)-, N-(hydroxyalkyl)-, and N-(aminoalkyl)ureas 3. α-Ureidoalkylation of N-[2-(dimethylamino)ethyl]urea
α-Ureidoalkylation of N -[2-(dimethylamino)ethyl]urea with 1,3-unsubstituted, 1,3-dialkyl-, and...
-
α-Thioureidoalkylation of urea heteroanalogs
α-Thioureidoalkylation of urea heteroanalogs such as thiosemicarbazide, amino-guanidine, sulfamide, and sulfonamides with...
-
α-Ureidoalkylation of thiosemicarbazide and aminoguanidine
azo[4,5- e ][1,2,4]triazin-6-ones, 4,5-bis(3-thiosemicarbazido(guanidinoamino))imidazolidin-2-ones, and...
-
α-Amido(thioamido)alkylation of dithiocarbamic, O-ethyldithiocarbonic, and arylsulfinic acids by 4-hydroxy(alkoxy)hexahydropyrimidine-2-thiones(ones)
The reaction of dithiocarbamic, O-ethyldithiocarbonic, and arylsulfinic acids with 4-hydroxy(methoxy)hexahydropyrimidine-2-thiones(ones) results in...