155513-84-1 Usage
General Description
2-(4-Nitrophenyl)-4H-pyrazino[2,3-d][1,3]oxazin-4-one is a chemical compound with potential pharmaceutical and industrial applications. It is a heterocyclic compound containing a pyrazine ring fused to an oxazine ring, with a nitrophenyl group attached to the pyrazine ring. 2-(4-Nitrophenyl)-4H-pyrazino[2,3-d][1,3]oxazin-4-one may have biological activity and is therefore of interest for drug discovery and development. It may also have industrial uses as a building block for the synthesis of other chemical compounds. Further research is needed to fully understand the potential applications and properties of 2-(4-Nitrophenyl)-4H-pyrazino[2,3-d][1,3]oxazin-4-one.
Check Digit Verification of cas no
The CAS Registry Mumber 155513-84-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,5,1 and 3 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 155513-84:
(8*1)+(7*5)+(6*5)+(5*5)+(4*1)+(3*3)+(2*8)+(1*4)=131
131 % 10 = 1
So 155513-84-1 is a valid CAS Registry Number.
155513-84-1Relevant articles and documents
Dihalogentriphenylphosphoranes in the synthesis of heterocycles, 29. A simple synthesis of pteridin-4-ones, from methyl-3-amino-2-pyrazinecarboxylate and pyrazino[3,1]oxazin-4-ones
Wamhoff,Kroth
, p. 405 - 410 (2007/10/02)
Methyl 3-amino-2-pyrazinecarboxylate (3) affords the synthetically useful 3-aroylaminopyrazin-2-carboxylates 5a-f with aroyl chlorides, which are converted with dibromotriphenylphosphorane into 2-arylpyrazino[2,3-d][3,1]oxazin-4-ones 6a-f. Nucleophilic attack at the carbonyl function of these oxazinones results in ring cleaved amides which can be recyclized with dibromotriphenylphosphorane to afford 2-arylpteridin-4-ones 7a-f.