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CAS

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198342-53-9

6-((S)-2,4,6-Triisopropyl-benzenesulfinyl)-1,4-dioxa-spiro[4.4]non-6-ene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 198342-53-9 Structure

  • Basic information

    1. Product Name: 6-((S)-2,4,6-Triisopropyl-benzenesulfinyl)-1,4-dioxa-spiro[4.4]non-6-ene
    2. Synonyms: 6-((S)-2,4,6-Triisopropyl-benzenesulfinyl)-1,4-dioxa-spiro[4.4]non-6-ene
    3. CAS NO:198342-53-9
    4. Molecular Formula:
    5. Molecular Weight: 376.56
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 198342-53-9.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: 6-((S)-2,4,6-Triisopropyl-benzenesulfinyl)-1,4-dioxa-spiro[4.4]non-6-ene(CAS DataBase Reference)
    10. NIST Chemistry Reference: 6-((S)-2,4,6-Triisopropyl-benzenesulfinyl)-1,4-dioxa-spiro[4.4]non-6-ene(198342-53-9)
    11. EPA Substance Registry System: 6-((S)-2,4,6-Triisopropyl-benzenesulfinyl)-1,4-dioxa-spiro[4.4]non-6-ene(198342-53-9)

  • 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: 198342-53-9(Hazardous Substances Data)

198342-53-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 198342-53-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,8,3,4 and 2 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 198342-53:
(8*1)+(7*9)+(6*8)+(5*3)+(4*4)+(3*2)+(2*5)+(1*3)=169
169 % 10 = 9
So 198342-53-9 is a valid CAS Registry Number.

198342-53-9Relevant articles and documents

Highly Diastereoselective Intermolecular β-Addition of Alkyl Radicals to Chiral 2-(Arylsulfinyl)-2-cycloalkenones

Mase, Nobuyuki,Watanabe, Yoshihiko,Ueno, Yoshio,Toru, Takeshi

, p. 7794 - 7800 (2007/10/03)

The diastereoselectivity of intermolecular β-addition of alkyl radicals to 2-(arylsulfinyl)-2-cycloalkenones depends largely upon the structure of the arylsulfinyl group. The reaction of 2-cyclopentenones or 2-cyclohexenones having a sterically bulky arylsulfinyl group such as (3,5-di-tert-butyl-4-methoxyphenyl)sulfinyl, (2,4,6-triisopropylphenyl)sulfinyl or (2,4,6-trimethylphenyl)sulfinyl group gives 3-alkyl-2-(arylsulfinyl)-1-cyclopentanones or 3-alkyl-2-(arylsulfinyl)-1-cyclohexanones in excellent yields and with high diastereoselectivity. Both the X-ray crystallographic analysis and the NOE experiment in the 1H NMR spectrum of (S)-2-[(2,4,6-triisopropylphenyl)sulfinyl]- and (S)-2-[(2,4,6-trimethylphenyl)sulfinyl]-2-cyclopentenone reveal an effective shielding of one of the olefin faces at the β-position by o-isopropyl and o-methyl groups. The addition of bidentate Lewis acids reverses the stereoselection through chelating the intermediates to give the addition products with high diastereoselectivity.

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