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17957-64-1

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17957-64-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17957-64-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,9,5 and 7 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 17957-64:
(7*1)+(6*7)+(5*9)+(4*5)+(3*7)+(2*6)+(1*4)=151
151 % 10 = 1
So 17957-64-1 is a valid CAS Registry Number.

17957-64-1Relevant articles and documents

Multicatalytic approach to one-pot stereoselective synthesis of secondary benzylic alcohols

Casnati, Alessandra,Lichosyt, Dawid,Lainer, Bruno,Veth, Lukas,Dydio, Pawe?

supporting information, p. 3502 - 3506 (2021/05/10)

One-pot procedures bear the potential to rapidly build up molecular complexity without isolation and purification of consecutive intermediates. Here, we report multicatalytic protocols that convert alkenes, unsaturated aliphatic alcohols, and aryl boronic acids into secondary benzylic alcohols with high stereoselectivities (typically >95:5 er) under sequential catalysis that integrates alkene cross-metathesis, isomerization, and nucleophilic addition. Prochiral allylic alcohols can be converted to any stereoisomer of the product with high stereoselectivity (>98:2 er, >20:1 dr).

Trimethylsilylazide: A Highly Reactive Silylating Agent for Primary and Secondary Alcohols

Sinou, D.,Emziane, M.

, p. 1045 - 1046 (2007/10/02)

Trimethylsilylazide reacts very rapidly with primary and secondary alcohols at room temperature to give high yields of trimethylsilyl ethers.

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