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107271-16-9

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107271-16-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 107271-16-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,2,7 and 1 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 107271-16:
(8*1)+(7*0)+(6*7)+(5*2)+(4*7)+(3*1)+(2*1)+(1*6)=99
99 % 10 = 9
So 107271-16-9 is a valid CAS Registry Number.

107271-16-9Downstream Products

107271-16-9Relevant articles and documents

Chiral bronsted acid from a cationic gold(I) complex: Catalytic enantioselective protonation of silyl enol ethers of ketones

Cheon, Cheol Hong,Kanno, Osamu,Toste, F. Dean

, p. 13248 - 13251 (2011/10/10)

A chiral Bronsted acid has been developed from a cationic gold(I) disphosphine complex in the presence of alcoholic solvent and applied to the enantioselective protonation reaction of silyl enol ethers of ketones. Various optically active cyclic ketones were obtained in excellent yields and high enantioselectivities, including cyclic ketones bearing aliphatic substrates at the α-position. Furthermore, the application of this Bronsted acid was extended to the first Bronsted acid-catalyzed enantioselective protonation reaction of silyl enol ethers of acyclic substrates, regardless of their E/Z ratio.

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