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109821-39-8

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109821-39-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109821-39-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,8,2 and 1 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 109821-39:
(8*1)+(7*0)+(6*9)+(5*8)+(4*2)+(3*1)+(2*3)+(1*9)=128
128 % 10 = 8
So 109821-39-8 is a valid CAS Registry Number.

109821-39-8Downstream Products

109821-39-8Relevant articles and documents

α-Alkylation of Ketones with Alkenes Enabled by Photoinduced Activation of Silyl Enol Ethers in the Presence of a Small Amount of Water

Hirata, Tsubasa,Ogasawara, Yoshihiro,Yamashita, Yasuhiro,Kobayashi, Shū

, p. 5693 - 5697 (2021)

Under blue-light irradiation conditions with a photocatalyst [1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene], silyl enol ethers reacted with alkenes in the presence of a small amount of water to afford the α-alkylation products in good to high yields. A thiol cocatalyst was found to expand the substrate scope of the reaction.

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