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155787-75-0

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155787-75-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 155787-75-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,7,8 and 7 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 155787-75:
(8*1)+(7*5)+(6*5)+(5*7)+(4*8)+(3*7)+(2*7)+(1*5)=180
180 % 10 = 0
So 155787-75-0 is a valid CAS Registry Number.

155787-75-0Relevant articles and documents

Stereoselective synthesis of: E -3-(arylmethylidene)-5-(alkyl/aryl)-2(3 H)-furanones by sequential hydroacyloxylation-Mizoroki-Heck reactions of iodoalkynes

Muthusamy, Gopinathan,Pansare, Sunil V.

, p. 7971 - 7983 (2018/11/21)

A modular, stereoselective synthesis of E-3-(arylidene)-5-(alkyl/aryl)-2(3H)-furanones was developed. The methodology features regioselective addition of β-aryl acrylic acids to iodoacetylenes to furnish the Z-acyloxy iodoalkenes. A stereoselective 5-exo-trig Mizoroki-Heck reaction of the acyloxy iodoalkenes generates the target E-2(3H)-furanones. The approach was applied in a formal synthesis of the naturally occurring kinase inhibitor BE-23372M.

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