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147217-94-5

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147217-94-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 147217-94-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,7,2,1 and 7 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 147217-94:
(8*1)+(7*4)+(6*7)+(5*2)+(4*1)+(3*7)+(2*9)+(1*4)=135
135 % 10 = 5
So 147217-94-5 is a valid CAS Registry Number.

147217-94-5Downstream Products

147217-94-5Relevant articles and documents

Phenyl-Carbonyl Coupling Reactions Promoted by Samarium Diiodide and Hexamethylphosphoramide

Shiue, Jiann-Shyng,Lin, Mei-Huey,Fang, Jim-Min

, p. 4643 - 4649 (2007/10/03)

By mediation of samarium diiodide and hexamethylphosphoramide, benzaldehydes and acetophenones underwent self- and cross-couplings to give the products having linkages at the para-carbons of phenyl rings and the carbonyl groups. The phenyl-carbonyl coupling of 2,5-dimethoxybenzaldehyde generated a Sm(III)-enolate intermediate, which was trapped by alkyl halides in a stereospecific manner to give uncommon 1,4-dialkyl-2,5-cyclohexadiene-1-carboxaldehydes. The benzaldehydes bearing tethered carbonyl chains proceeded with intramolecular phenyl-carbonyl couplings to afford fused benzocycles.

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