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1240388-74-2

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1240388-74-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1240388-74-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,0,3,8 and 8 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1240388-74:
(9*1)+(8*2)+(7*4)+(6*0)+(5*3)+(4*8)+(3*8)+(2*7)+(1*4)=142
142 % 10 = 2
So 1240388-74-2 is a valid CAS Registry Number.

1240388-74-2Relevant academic research and scientific papers

Gold(I) - Catalyzed domino reaction of aziridinyl alkynes

Zhang, Zhen,Shi, Min

supporting information; experimental part, p. 7725 - 7729 (2010/09/10)

Chemical Equation Presented Aziridinyl alkynes strike gold: A novel gold(I)-catalyzed domino transformation of aziridinyl alkynes with arenes to construct 1,2,3,4-tetrahydroisoquinoline and 3,4-dihydroisoquinoline structural motifs (see scheme), especially sterically congested Syn-3,4-disubsti contzonetuted 1,2,3,4-tetrahydroisoquinolines, is described. A plausible mechanism proceeding through a benzylic cation is given based upon deuterium-labeling and control experiments as well as the observed diastereoselectivities.

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