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74849-40-4

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74849-40-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74849-40-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,8,4 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 74849-40:
(7*7)+(6*4)+(5*8)+(4*4)+(3*9)+(2*4)+(1*0)=164
164 % 10 = 4
So 74849-40-4 is a valid CAS Registry Number.

74849-40-4Downstream Products

74849-40-4Relevant articles and documents

Copper(I)-catalyzed enantioselective 1,3-dipolar cycloaddition of azomethine ylides with vinyl sulfones

Llamas, Tomas,Arrayas, Ramon Gomez,Carretero, Juan Carlos

, p. 950 - 956 (2007)

The combination of copper(I)-Taniaphos (5 mol%) is an efficient Lewis acid catalyst for the promotion of the asymmetric 1,3-dipolar cycloaddition of azomethine ylides to aryl vinyl sulfones, providing 3-sulfonylpyrrolidines in good yields and with nearly

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