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(1R,2R,4S)-4-[(tert-Butyldimethylsilyl)oxy]-2-(2-chloro-5-pyridyl)cyclohexan-1-ol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

221649-19-0

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221649-19-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 221649-19-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,6,4 and 9 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 221649-19:
(8*2)+(7*2)+(6*1)+(5*6)+(4*4)+(3*9)+(2*1)+(1*9)=120
120 % 10 = 0
So 221649-19-0 is a valid CAS Registry Number.

221649-19-0Relevant academic research and scientific papers

Enantioselective α-arylation of cyclohexanones with diaryl iodonium salts: Application to the synthesis of (-)-epibatidine

Aggarwal, Varinder K.,Olofsson, Berit

, p. 5516 - 5519 (2007/10/03)

(Chemical Equation Presented) Short cut: Direct asymmetric α-arylation of prochiral ketones has been effected using chiral lithium amide bases and diaryl iodonium salts. The methodology has been employed in a short total synthesis of the alkaloid (-)-epibatidine (see scheme).

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