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Cr(CO)3(OCH2CH2)2O(C6H4OC8H17)(C6H3(CHO)(OC8H17)) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

849238-19-3

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849238-19-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 849238-19-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,9,2,3 and 8 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 849238-19:
(8*8)+(7*4)+(6*9)+(5*2)+(4*3)+(3*8)+(2*1)+(1*9)=203
203 % 10 = 3
So 849238-19-3 is a valid CAS Registry Number.

849238-19-3Relevant academic research and scientific papers

Selective functionalization of crown ethers via arene chromium tricarbonyl complexes

Ben Hadj Amor, Abir,Top, Siden,Meganem, Faouzi,Jaouen, Gérard

, p. 847 - 856 (2007/10/03)

The crown ethers dibenzo-16-crown-4 and dibenzo-18-crown-5 and a diaryl polyether were complexed by the chromium tricarbonyl group for the purpose of selective functionalization. This complexation did indeed permit exclusive functionalization of the complexed ring. CHO and CH2OH functionalities were introduced ortho to the ether group. It was noted that the nature of the two ether chains had a strong influence on the regioselectivity of the functionalization, which occurred preferentially on the side with the polyether chain. Photochemical decomplexation produced functionalized organic crown ethers.

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