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CAS

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221649-16-7

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

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  • 221649-16-7 Structure

  • Basic information

    1. Product Name: (2R,4S)-4-[(tert-Butyldimethylsilyl)oxy]-2-(2-chloro-5-pyridyl)cyclohexan-1-one
    2. Synonyms: (2R,4S)-4-[(tert-Butyldimethylsilyl)oxy]-2-(2-chloro-5-pyridyl)cyclohexan-1-one
    3. CAS NO:221649-16-7
    4. Molecular Formula:
    5. Molecular Weight: 339.937
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 221649-16-7.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: N/A
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: (2R,4S)-4-[(tert-Butyldimethylsilyl)oxy]-2-(2-chloro-5-pyridyl)cyclohexan-1-one(CAS DataBase Reference)
    10. NIST Chemistry Reference: (2R,4S)-4-[(tert-Butyldimethylsilyl)oxy]-2-(2-chloro-5-pyridyl)cyclohexan-1-one(221649-16-7)
    11. EPA Substance Registry System: (2R,4S)-4-[(tert-Butyldimethylsilyl)oxy]-2-(2-chloro-5-pyridyl)cyclohexan-1-one(221649-16-7)

  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 221649-16-7(Hazardous Substances Data)

221649-16-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 221649-16-7 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 6 respectively.
Calculate Digit Verification of CAS Registry Number 221649-16:
(8*2)+(7*2)+(6*1)+(5*6)+(4*4)+(3*9)+(2*1)+(1*6)=117
117 % 10 = 7
So 221649-16-7 is a valid CAS Registry Number.

221649-16-7Relevant articles and documents

The effect of DMSO on the borohydride reduction of a cyclohexanone: A formal enantioselective synthesis of (+)-epibatidine

Barros, M. Teresa,Maycock, Christopher D.,Ventura, M. Rita

, p. 557 - 560 (1999)

An asymmetric synthesis of (+)-epibatidine is described which uses the increased stereoselectivity of a borohydride reduction induced by the presence of DMSO.

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).

Approaches to the synthesis of (+)- and (-)-epibatidine

Barros, M. Teresa,Maycock, Christopher D.,Ventura, M. Rita

, p. 166 - 173 (2007/10/03)

Synthetic approaches to the powerful analgesic alkaloids (+)- and (-)-epibatidine are described. The starting material employed was natural (-)-quinic acid from which chiral enones and α-iodoenones were prepared. Stille coupling afforded suitable substrat

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