158120-42-4 Usage
Preparation
Triethylamine (0.42 mL) and triphosgene (0.15 g) were added to a solution of 3-phenyl- 5-(2-hydroxyphenyl)-1,2,4-triazole (1.26 mmol) in anhydrous tetrahydrofuran (10 mL). The mixture was stirred at room temperature for 9 days. On the third and sixth days further triethylamine (0.42 mL) and triphosgene (0.15 g) were added. The mixture was eventually diluted with water and the resulting solid was collected and washed with water. Yield 93%.
Check Digit Verification of cas no
The CAS Registry Mumber 158120-42-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,1,2 and 0 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 158120-42:
(8*1)+(7*5)+(6*8)+(5*1)+(4*2)+(3*0)+(2*4)+(1*2)=114
114 % 10 = 4
So 158120-42-4 is a valid CAS Registry Number.
InChI:InChI=1/C15H9N3O2/c19-15-18-14(11-8-4-5-9-12(11)20-15)16-13(17-18)10-6-2-1-3-7-10/h1-9H
158120-42-4Relevant articles and documents
Tricyclic heteroaromatic systems. 2-phenyl-1,2,4-triazolo[1,5- c][1,3]benzoxazin-5-one: A novel benzodiazepine receptor ligand
Catarzi,Cecchi,Colotta,Filacchioni,Martini,Giusti,Lucacchini,Valle
, p. 89 - 92 (2007/10/02)
The synthesis, unambiguous proof of structure and benzodiazepine receptor affinity and efficacy of 2-phenyl-1,2,4-triazolo[1,5-c][1,3]benzoxazin-5-one 1 are reported. The in vitro biological data indicate that 1 may be the lead compound of a new class of
