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1260403-07-3

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1260403-07-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1260403-07-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,0,4,0 and 3 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1260403-07:
(9*1)+(8*2)+(7*6)+(6*0)+(5*4)+(4*0)+(3*3)+(2*0)+(1*7)=103
103 % 10 = 3
So 1260403-07-3 is a valid CAS Registry Number.

1260403-07-3Relevant articles and documents

Asymmetric Synthesis of 2,3-Dihydrobenzofurans by a [4+1] Annulation Between Ammonium Ylides and In Situ Generated o-Quinone Methides

Meisinger, Nicole,Roiser, Lukas,Monkowius, Uwe,Himmelsbach, Markus,Robiette, Rapha?l,Waser, Mario

, p. 5137 - 5142 (2017)

A highly enantio- and diastereoselective [4+1] annulation between in situ generated ammonium ylides and o-quinone methides for the synthesis of a variety of 2,3-dihydrobenzofurans has been developed. The key factors controlling the reactivity and stereoselectivity were systematically investigated by experimental and computational means and the energy profiles obtained provide a deeper insight into the mechanistic details of this reaction.

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