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1349842-76-7

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1349842-76-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1349842-76-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,4,9,8,4 and 2 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1349842-76:
(9*1)+(8*3)+(7*4)+(6*9)+(5*8)+(4*4)+(3*2)+(2*7)+(1*6)=197
197 % 10 = 7
So 1349842-76-7 is a valid CAS Registry Number.

1349842-76-7Relevant articles and documents

Regioselective and stereoselective cyclizations of cyclohexadienones tethered to active methylene groups

Tello-Aburto, Rodolfo,Kalstabakken, Kyle A.,Volp, Kelly A.,Harned, Andrew M.

, p. 7849 - 7859 (2011/12/04)

The cyclization of 2,5-cyclohexadienones tethered to activated methylene groups was studied. The substitution around the cyclohexadienone ring serves to regioselectively direct these cyclizations based primarily on electronic effects. In the case of brominated substrates, these reactions proceed to give highly unusual electron-deficient tricyclic cyclopropanes. By using a Cinchona alkaloid-based phase-transfer catalyst, prochiral cyclohexadienones can be desymmetrized with moderate stereoselectivity.

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