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481632-34-2

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481632-34-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 481632-34-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,8,1,6,3 and 2 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 481632-34:
(8*4)+(7*8)+(6*1)+(5*6)+(4*3)+(3*2)+(2*3)+(1*4)=152
152 % 10 = 2
So 481632-34-2 is a valid CAS Registry Number.

481632-34-2Relevant articles and documents

Hypervalent Iodine(III)-Catalysed Enantioselective α-Acetoxylation of Ketones

Hokamp, Tobias,Wirth, Thomas

supporting information, p. 10417 - 10421 (2020/07/24)

An enantioselective catalytic synthesis of α-acetoxylated ketones through I(I)/I(III) catalysis using a resorcinol/lactamide-based chiral iodoarene is reported. Catalyst turnover by in situ generation of the active iodine(III) derivative is achieved by oxidation with mCPBA in the presence of acetic acid. The prior transformation of ketones to easily accessible acetyl enol ethers is beneficial and yields up to 97 percent with enantioselectivities up to 88 percent ee are obtained using only low catalyst loadings of only 5 mol percent under mild reaction conditions.

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