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51039-61-3

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51039-61-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 51039-61-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,0,3 and 9 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 51039-61:
(7*5)+(6*1)+(5*0)+(4*3)+(3*9)+(2*6)+(1*1)=93
93 % 10 = 3
So 51039-61-3 is a valid CAS Registry Number.

51039-61-3Downstream Products

51039-61-3Relevant articles and documents

Substituent Effects in the Cycloaddition Reactions of Reissert Hydrofluoroborate Salts with Alkenes

McEwen, William E.,Hernandez, Maria Alcira,Ling, Chei-Fei,Marmugi, Elba,Padronaggio, Regina M.,et al.

, p. 1656 - 1662 (2007/10/02)

An evaluation of substitutent effects has been undertaken of the cycloaddition of 2-aroyl-1,2-dihydroisoquinaldonitrile hydrofluoroborates (5) with substituted ethyl cinnamates, styrenes, stilbenes, and ethylenes.The cinnamates give mixtures of 2-(1-isoquinolyl)-3,5-diaryl-4-carbethoxypyrroles.The stilbenes give mixtures of 2-(1-isoquinolyl)-3,4,5-triarylpyrroles, but the styrenes give only 2-(1-isoquinolyl)-3,5-diarylpyrroles. 1-Hexene and cyclohexene undergo cycloaddition with 5 (Y=H) readily, but 2-heptene does not.The rates of many these reactions have been determined.The implications of the results with respect to the mechanism of reaction are discussed.

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