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CAS

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186193-03-3

(3R,4R)-3-<(tert-butyldiphenylsilyl)oxy>-4-methylhept-5(E)-en-1-yne is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 186193-03-3 Structure

  • Basic information

    1. Product Name: (3R,4R)-3-<(tert-butyldiphenylsilyl)oxy>-4-methylhept-5(E)-en-1-yne
    2. Synonyms: (3R,4R)-3-<(tert-butyldiphenylsilyl)oxy>-4-methylhept-5(E)-en-1-yne
    3. CAS NO:186193-03-3
    4. Molecular Formula:
    5. Molecular Weight: 362.587
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 186193-03-3.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: (3R,4R)-3-<(tert-butyldiphenylsilyl)oxy>-4-methylhept-5(E)-en-1-yne(CAS DataBase Reference)
    10. NIST Chemistry Reference: (3R,4R)-3-<(tert-butyldiphenylsilyl)oxy>-4-methylhept-5(E)-en-1-yne(186193-03-3)
    11. EPA Substance Registry System: (3R,4R)-3-<(tert-butyldiphenylsilyl)oxy>-4-methylhept-5(E)-en-1-yne(186193-03-3)

  • 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: 186193-03-3(Hazardous Substances Data)

186193-03-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 186193-03-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,6,1,9 and 3 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 186193-03:
(8*1)+(7*8)+(6*6)+(5*1)+(4*9)+(3*3)+(2*0)+(1*3)=153
153 % 10 = 3
So 186193-03-3 is a valid CAS Registry Number.

186193-03-3Relevant articles and documents

Synthesis of unit A of cryptophycin via a [2,3]-Wittig rearrangement

Liang, Jian,Hoard, David W.,Van Khau, Vien,Martinelli, Michael J.,Moher, Eric D.,Moore, Richard E.,Tius, Marcus A.

, p. 1459 - 1463 (1999)

The synthesis of unit A of the cryptophycins from (S)-trans-3-penten-2- ol and from (S)-trans-4-hexen-3-ol has been completed. The key stereodetermining step is a [2,3]-Wittig rearrangement of a propargyl ether. Elaboration of the rearrangement product was accomplished by means of a selective hydroboration-oxidation of a terminal alkyne, Horner-Emmons homologation of the derived aldehyde, followed by selective ozonolytic cleavage and Wittig olefination. This synthesis provides easy access to the series of cryptophycin analogues that incorporate a modified aromatic ring in unit A.

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