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CAS

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196600-42-7

(4S,5R)-5-[(2,3-dimethyl-2-butyl)dimethylsilyloxymethyl]-2,2,4-trimethyl-4-(2,5-dimethoxy-3,4,6-trimethylphenylethynyl)-1,3-dioxolane is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 196600-42-7 Structure

  • Basic information

    1. Product Name: (4S,5R)-5-[(2,3-dimethyl-2-butyl)dimethylsilyloxymethyl]-2,2,4-trimethyl-4-(2,5-dimethoxy-3,4,6-trimethylphenylethynyl)-1,3-dioxolane
    2. Synonyms:
    3. CAS NO:196600-42-7
    4. Molecular Formula:
    5. Molecular Weight: 490.756
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 196600-42-7.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: (4S,5R)-5-[(2,3-dimethyl-2-butyl)dimethylsilyloxymethyl]-2,2,4-trimethyl-4-(2,5-dimethoxy-3,4,6-trimethylphenylethynyl)-1,3-dioxolane(CAS DataBase Reference)
    10. NIST Chemistry Reference: (4S,5R)-5-[(2,3-dimethyl-2-butyl)dimethylsilyloxymethyl]-2,2,4-trimethyl-4-(2,5-dimethoxy-3,4,6-trimethylphenylethynyl)-1,3-dioxolane(196600-42-7)
    11. EPA Substance Registry System: (4S,5R)-5-[(2,3-dimethyl-2-butyl)dimethylsilyloxymethyl]-2,2,4-trimethyl-4-(2,5-dimethoxy-3,4,6-trimethylphenylethynyl)-1,3-dioxolane(196600-42-7)

  • 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: 196600-42-7(Hazardous Substances Data)

196600-42-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 196600-42-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,6,6,0 and 0 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 196600-42:
(8*1)+(7*9)+(6*6)+(5*6)+(4*0)+(3*0)+(2*4)+(1*2)=147
147 % 10 = 7
So 196600-42-7 is a valid CAS Registry Number.

196600-42-7Downstream Products

196600-42-7Relevant articles and documents

Enantioselective synthesis of chromans for the preparation of enantiopure vitamin E and analogues

Tietze, Lutz F.,G?rlitzer, Jochen

, p. 877 - 885 (2007/10/03)

Coupling of the differently protected (hydroxymethyl)enynes 11 a-e and 12a-c with the iodoarene 7 in the presence of catalytic amounts of Pd(PPh3)4 afforded the arylenynes 5a-e and 6a-c which were transformed into the monoprotected chiral trihydroxy compounds 13 a-d and 14a,b by Sharpless bishydroxylation with >95% ee for 13 a-d, 91% ee for 14b, and 64% ee for 14a. A 5-step transformation of 13a led to the desired chroman derivative 3a which was cleaved to give the aldehyde 2 a known precursor for the enantioselective synthesis of vitamin E.

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