24422-15-9 Usage
Preparation
3,4,5-Trichlorothiophene-2-carbonyl chloride synthesis: A mixture of 3,4,5-trichloro-2-thiophenecarboxylic acid (20.4 g, 0.088 mol), SOCl2 (7.3 mL, 0.1 mol), and DMF (0.2 mL) in 80 mL of 1,2-dichloroethane was heated at reflux temperature for 3 h. The reaction mixture became homogeneous after 1 h of heating. The solution was cooled to 25℃, concentrated and placed under high vacuum to remove residual solvent, giving 22.0 g (98% wt.) of 3,4,5-trichloro-2-thiophenecarbonyl chloride as an oil which solidified on standing to an off-white powder; m.p. 37-41℃, having a GC area % purity > 99%.
Check Digit Verification of cas no
The CAS Registry Mumber 24422-15-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,4,4,2 and 2 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 24422-15:
(7*2)+(6*4)+(5*4)+(4*2)+(3*2)+(2*1)+(1*5)=79
79 % 10 = 9
So 24422-15-9 is a valid CAS Registry Number.
InChI:InChI=1/C5Cl4OS/c6-1-2(7)5(9)11-3(1)4(8)10
24422-15-9Relevant articles and documents
Process for preparing 3-(substituted phenyl)-5-thienyl or furyl)-1,2,4-triazoles and novel intermediates utilized therein
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, (2008/06/13)
New synthetic procedures for preparing insecticidal 3-(substituted phenyl)-5-(thienyl or furyl)-1,2,4-triazoles utilizing thioimidate intermediate.
