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27644-80-0

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27644-80-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 27644-80-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,6,4 and 4 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 27644-80:
(7*2)+(6*7)+(5*6)+(4*4)+(3*4)+(2*8)+(1*0)=130
130 % 10 = 0
So 27644-80-0 is a valid CAS Registry Number.

27644-80-0Relevant articles and documents

Directed functionalization of halophenyl-2-oxazolines with TMPMgCl?LiCl

Batista, Joo H. C.,Santos, Fernanda M. Dos,Bozzini, Leandro A.,Vessecchi, Ricardo,Oliveira, Alfredo R. M.,Clososki, Giuliano C.

, p. 967 - 977 (2015/02/19)

A variety of difunctionalized aryl-2-oxazolines were prepared from the reaction of halophenyl-2-oxazolines and TMPMgCl?LiCl to give an organomagnesium reagent, which was then treated with various electrophiles. The metalation step takes place under mild conditions, and this process al-lows for the isolation of the desired products in good yields. No isomeric or other benzyne-derived products were detected. The influence of the halogen substituents on the acidity of the aromatic hydrogen atoms was evaluated by using density functional theory (DFT) calculations.

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