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1439937-69-5

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1439937-69-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1439937-69-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,9,9,3 and 7 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1439937-69:
(9*1)+(8*4)+(7*3)+(6*9)+(5*9)+(4*3)+(3*7)+(2*6)+(1*9)=215
215 % 10 = 5
So 1439937-69-5 is a valid CAS Registry Number.

1439937-69-5Downstream Products

1439937-69-5Relevant articles and documents

Enantioselective Michael addition/iminium ion cyclization cascades of tryptamine-derived ureas

Aillaud, Isabelle,Barber, David M.,Thompson, Amber L.,Dixon, Darren J.

, p. 2946 - 2949 (2013/07/26)

A Michael addition/iminium ion cyclization cascade of enones with tryptamine-derived ureas under BINOL phosphoric acid (BPA) catalysis is reported. The cascade reaction tolerates a wide variety of easily synthesized tryptamine-derived ureas, including those bearing substituents on the distal nitrogen atom of the urea moiety, affording polyheterocyclic products in good yields and good to excellent enantioselectivities.

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