33070-47-2

Upstream product

• 6632-68-4 6-amino-1,3-dimethyl-5-nitroso-1H-pyrimidine-2,4-dione 
• 42026-60-8 4-amino-1,6-dihydro-1-methyl-2-methylthio-5-nitroso-6-oxo-pyrimidine 
• 6972-27-6 1,3-Dimethyl-6-chlorouracil 
• 506437-15-6 N-(1,3-dimethyl-5-nitroso-6-uracilyl)-S,S-diphenylsulfilimine 
• 506437-12-3 N-(1,3-dimethyl-6-uracilyl)-S,S-diphenylsulfilimine 
• 183987-67-9 4,6-dimethyl-1-oxy-4H-[1,2,5]selenadiazolo[3,4-d]pyrimidine-5,7-dione 
• 183987-66-8 4,6-dimethyl-1-oxy-4H-[1,2,5]thiadiazolo[3,4-d]pyrimidine-5,7-dione 
• 42963-36-0 4,6-dimethyl-<1,2,5>oxadiazolo<3,4-d>pyrimidine-5,7(4H,6H)-dione 1-oxide 
• 60331-18-2 6-acetoxyamino-1,3-dimethyl-1H-pyrimidine-2,4-dione 

Relevant academic research and scientific papers

Ring closure reactions of β-nitroso-, β-acyl-, and β-thiocarbamoyl-α,β-unsaturated sulfilimines. Synthesis of [1,2,5]oxadiazolo[3,4-d]-, isoxazolo[3,4-d]-, and isothiazolo[3,4-d]pyrimidine derivatives from uracils

1,3-Dialkyl-6-chlorouracils were treated with S,S-diphenylsulfilimine to give N-(1,3-dialkyluracil-6-yl)-S,S-diphenylsulfilimines. The uracilylsulfilimines were nitrosated, acylated, or thiocarbamoylated to give N-(5-nitroso-, 5-acyl-, or 5-thiocarbamoyluracil-6-yl)sulfilimines, respectively. These conjugated sulfilimines were cyclized by thermolysis or photolysis to [1,2,5]oxadiazolo[3,4-d], isoxazolo[3,4-d], or isothiazolo[3,4-d]pyrimidine derivatives.

Convenient and versatile synthetic methods for furazano[3,4-d]pyrimidines

Treatment of the readily available 6-amino-5-nitrosopyrimidines with a slight excess of iodobenzene diacetate or N-iodosuccinimide in anhydrous DMF containing three equivalents of lithium hydride at ambient temperature resulted in the smooth and versatile

Mechanistic Aspects of the Oxidation of 1,3-Disubstituted 6-Amino-5-nitrosouracils with Lead Tetraacetate: The Formation of Pyrimidopteridinetetrone 10-Oxides

Lead tetraacetate oxidation of 1,3-disubstituted 6-amino-5-nitrosouracils 1 in glacial acetic acid results in the formation of 1,3,6,8-tetrasubstituted pyrimidopteridine-2,4,5,7(1H,3H,6H,8H)-tetrone 10-oxides 2.ESR studies and a number of chemical

A CONVERSION OF OXADIAZOLOPYRIMIDINE 1-OXIDES INTO PURINES

Treatment of oxadiazolopyrimidine 1-oxides with amines led to the formation of the corresponding 8-substituted purine derivatives, along with other heterocyclic compounds in some cases.