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1307291-41-3

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1307291-41-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1307291-41-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,7,2,9 and 1 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1307291-41:
(9*1)+(8*3)+(7*0)+(6*7)+(5*2)+(4*9)+(3*1)+(2*4)+(1*1)=133
133 % 10 = 3
So 1307291-41-3 is a valid CAS Registry Number.

1307291-41-3Downstream Products

1307291-41-3Relevant academic research and scientific papers

Phosphine-catalyzed [3 + 2] annulations of γ-functionalized butynoates and 1 C,3 O-bisnucleophiles: Highly selective reagent-controlled pathways to polysubstituted furans

Hu, Jian,Wei, Yabing,Tong, Xiaofeng

supporting information; experimental part, p. 3068 - 3071 (2011/07/31)

In this paper, a reagent-controlled [3 + 2] annulation of γ-functionalized butynoates 1 and 1C,3O-bisnucleophiles 2 is reported, which leads to three distinct furan skeletons 3-5. A PPh3 catalyst preferentially attached the β-position of 1a, fa

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