62720-28-9 Usage
Uses
1,2,3-Trichloro-4-iodobenzene is an intermediate in the synthesis of 2,2'',3,3'',4,4''-Hexachlorobiphenyl (H290825), a polychlorinated biphenyl (PCB) found in air, soil, mammals, and marine animals.
Check Digit Verification of cas no
The CAS Registry Mumber 62720-28-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,2,7,2 and 0 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 62720-28:
(7*6)+(6*2)+(5*7)+(4*2)+(3*0)+(2*2)+(1*8)=109
109 % 10 = 9
So 62720-28-9 is a valid CAS Registry Number.
62720-28-9Relevant articles and documents
Synthesis of Triarylbenzenes via Tandem Aryne Reaction of Aryl Grignards with Polyhalobenzenes
Ghosh, Tirthanakar,Hart, Harold
, p. 3555 - 3558 (2007/10/02)
Aryl Grignards react with 1,2,3,4-tetrahalobenzenes to give primarily (2,3,4-triaryphenyl)magnesium halides.The mechanism involves Grignard exchange at one of the "outer" halogens followed by three cycles of magnesium halide loss and regioselective capture of the resulting aryne by the aryl Grignard agent (Scheme II).