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182356-06-5

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182356-06-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 182356-06-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,2,3,5 and 6 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 182356-06:
(8*1)+(7*8)+(6*2)+(5*3)+(4*5)+(3*6)+(2*0)+(1*6)=135
135 % 10 = 5
So 182356-06-5 is a valid CAS Registry Number.

182356-06-5Relevant articles and documents

Enantioselective rhodium-catalyzed hydroacylation to access the four stereoisomers of anti-rodent difenacoum

Jacolot, Ma?wenn,Moebs-Sanchez, Sylvie,Popowycz, Florence

supporting information, p. 1636 - 1639 (2017/04/04)

An efficient asymmetric synthesis of the four stereoisomers of difenacoum, an anticoagulant currently used as a rodenticide in racemic form, is performed using a key step of rhodium catalyzed enantioselective intramolecular hydroacylation. Optimization of the last step, condensation of 4-hydroxycoumarin with chiral 3-([1,1′-biphenyl]-4-yl)-1,2,3,4-tetrahydronaphthalen-1-ol, is also discussed. After chromatographic separation of the cis and trans diastereoisomers, the four stereoisomers were all obtained with excellent enantioselective and diastereoselective excess (ee?≈?96% and de >96%).

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