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153993-00-1

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153993-00-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 153993-00-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,3,9,9 and 3 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 153993-00:
(8*1)+(7*5)+(6*3)+(5*9)+(4*9)+(3*3)+(2*0)+(1*0)=151
151 % 10 = 1
So 153993-00-1 is a valid CAS Registry Number.

153993-00-1Relevant articles and documents

New Intramolecular α-Arylation Strategy of Ketones by the Reaction of Silyl Enol Ethers to Photosensitized Electron Transfer Generated Arene Radical Cations: Construction of Benzannulated and Benzospiroannulated Compounds

Pandey, Ganesh,Karthikeyan,Murugan

, p. 2867 - 2872 (2007/10/03)

Efficient intramolecular α-arylation of ketones is achieved by the reaction of silyl enol ethers to photosensitized electron transfer (PET) generated arene radical cations. The arene radical cations are generated by one-electron transfer from the excited state of the methoxy-substituted arenes to ground-state 1,4-dicyanonaphthalene (DCN). This arylation strategy has provided the unique opportunity of constructing five- (23), six- (18), seven- (25) and eight-membered (27) benzannulated as well as benzospiroannulated (34) compounds. The explanation for the formation of 27 has been advanced by considering the proximity between the arene radical cation and silyl enol ether due to the self-coiling in the aqueous environment.

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