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1568990-34-0

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1568990-34-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1568990-34-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,6,8,9,9 and 0 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1568990-34:
(9*1)+(8*5)+(7*6)+(6*8)+(5*9)+(4*9)+(3*0)+(2*3)+(1*4)=230
230 % 10 = 0
So 1568990-34-0 is a valid CAS Registry Number.

1568990-34-0Downstream Products

1568990-34-0Relevant articles and documents

Asymmetric α-hydroxylation of tetralone-derived β-ketoesters by using a guanidine-urea bifunctional organocatalyst in the presence of cumene hydroperoxide

Odagi, Minami,Furukori, Kota,Watanabe, Tatsuya,Nagasawa, Kazuo

, p. 16740 - 16745 (2013)

Highly enantioselective catalytic oxidation of 1-tetralone-derived β-keto esters was achieved by using a guanidine-urea bifunctional organocatalyst in the presence of cumene hydroperoxide (CHP), a safe, commercially available oxidant. The α-hydroxylation products were obtained in 99 % yield with up to 95 % enantiomeric excess (ee). The present oxidation was successfully applied to synthesize a key intermediate of the anti-cancer agent daunorubicin (2).

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