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67271-25-4

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67271-25-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67271-25-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,2,7 and 1 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 67271-25:
(7*6)+(6*7)+(5*2)+(4*7)+(3*1)+(2*2)+(1*5)=134
134 % 10 = 4
So 67271-25-4 is a valid CAS Registry Number.

67271-25-4Downstream Products

67271-25-4Relevant academic research and scientific papers

The acid-promoted reactions of phenyliodonium ylides with substituted anilines and their applications to the synthesis of indoles

Wang, Xianpei,Han, Bing,Wang, Junyan,Yu, Wei

supporting information; experimental part, p. 3865 - 3867 (2010/09/17)

The N-substituted anilines 1 react readily with phenyliodonium ylides 2 derived from 1,3-dicarbonyl compounds in the presence of a catalytic amount of BF3·Et2O, forming the C-N coupling products 3, which are precursors for the synthesis of indoles. On the basis of this result, the direct synthesis of indoles from 1 and 2 under thermal conditions and photochemical conditions was explored. The transformations could be achieved in a one-pot way under thermal conditions or in a tandem manner under photochemical conditions.

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