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136050-75-4

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136050-75-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136050-75-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,0,5 and 0 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 136050-75:
(8*1)+(7*3)+(6*6)+(5*0)+(4*5)+(3*0)+(2*7)+(1*5)=104
104 % 10 = 4
So 136050-75-4 is a valid CAS Registry Number.

136050-75-4Relevant articles and documents

Zinc Amide Catalyzed Regioselective Allenylation and Propargylation of Ketones with Allenyl Boronate

Yamashita, Yasuhiro,Cui, Yi,Xie, Peizhong,Kobayashi, Shu

, p. 6042 - 6045 (2015)

Zinc amide catalyzed, regioselective allenylation and propargylation of ketones with allenyl boronate is reported. Tertiary allenyl and homopropargyl alcohols were obtained, respectively, in high selectivities, from the same starting materials, simply by changing the reaction conditions. The substrate scope was wide. Mechanistic studies suggest that the reactions are controlled under kinetic and thermodynamic conditions.

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