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1240791-65-4

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1240791-65-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1240791-65-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,0,7,9 and 1 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1240791-65:
(9*1)+(8*2)+(7*4)+(6*0)+(5*7)+(4*9)+(3*1)+(2*6)+(1*5)=144
144 % 10 = 4
So 1240791-65-4 is a valid CAS Registry Number.

1240791-65-4Downstream Products

1240791-65-4Relevant articles and documents

Stereoselective spirolactam synthesis via palladium catalyzed arylative allene carbocyclization cascades

Li, Meiling,Dixon, Darren J.

supporting information; experimental part, p. 3784 - 3787 (2010/11/04)

A diastereoselective arylative carbocyclization of pro-nucleophile-linked allenes with aryl and heteroaryl halides to provide spirocyclic lactam products with moderate to high diastereoselectivities and good yields under Pd(0) catalysis is reported. Being operationally simple and tolerant of multiple points of diversity, this complexity building reaction cascade, in which two new carbon-carbon bonds and one new heterocyclic ring are created, should be of high value in both complex natural product synthesis as well as compound library synthesis.

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