Cas 935546-31-9,C<sub>24</sub>H<sub>24</sub>NP

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Check Digit Verification of cas no

The CAS Registry Mumber 935546-31-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,5,5,4 and 6 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 935546-31:
(8*9)+(7*3)+(6*5)+(5*5)+(4*4)+(3*6)+(2*3)+(1*1)=189
189 % 10 = 9
So 935546-31-9 is a valid CAS Registry Number.

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935546-31-9Relevant academic research and scientific papers

A novel heterocumulenic Pauson-Khand reaction of alkynylcarbodiimides: A facile and efficient synthesis of heterocyclic ring-fused pyrrolinones

Saito, Takao,Shiotani, Masahiro,Otani, Takashi,Hasaba, Satoshi

, p. 1045 - 1048 (2007/10/03)

The first examples of the heterocumulenic Pauson-Khand reaction are described. Alkynylcarbodiimides undergo an intramolecular Pauson-Khand cycloaddition upon heating in the presence of Mo(CO)6 and DMSO to afford 4,5-dihydro-1H-pyrrolo[2,3-b]pyrrolin-2-ones and 1H-pyrrolo[2,3-b]indol-2-ones.

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