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CAS

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71221-73-3

2,5,5-trimethylcyclopent-2-en-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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  • 71221-73-3 Structure

  • Basic information

    1. Product Name: 2,5,5-trimethylcyclopent-2-en-1-one
    2. Synonyms: 2,5,5-trimethylcyclopent-2-en-1-one
    3. CAS NO:71221-73-3
    4. Molecular Formula:
    5. Molecular Weight: 124.183
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 71221-73-3.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: 2,5,5-trimethylcyclopent-2-en-1-one(CAS DataBase Reference)
    10. NIST Chemistry Reference: 2,5,5-trimethylcyclopent-2-en-1-one(71221-73-3)
    11. EPA Substance Registry System: 2,5,5-trimethylcyclopent-2-en-1-one(71221-73-3)

  • 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: 71221-73-3(Hazardous Substances Data)

71221-73-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71221-73-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,2,2 and 1 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 71221-73:
(7*7)+(6*1)+(5*2)+(4*2)+(3*1)+(2*7)+(1*3)=93
93 % 10 = 3
So 71221-73-3 is a valid CAS Registry Number.

71221-73-3Relevant articles and documents

COPPER (I) CATALYSIS OF OLEFIN PHOTOREACTIONS -9. PHOTOBICYCLIZATION OF alpha -, beta -, AND gamma -ALKENYLALLYL ALCOHOLS.

Salomon,Coughlin,Ghosh,Zagorski

, p. 998 - 1007 (1982)

Cyclobutylcarbinyl alcohols of the bicyclo left bracket 3. 2. 0 right bracket heptane ring system are produced by UV irradiation of alpha -, beta -, and gamma -alkenylallyl alcohols in the presence of copper (I) trifluoromethanesulfonate (CuOTf). endo-2-Hydroxy epimers of bicyclo left bracket 3. 2. 0 right bracket heptan-2-ols are generated stereoselectively. This result as well as the effect of CuOTf on the **1H NMR spectrum of 4,4-dimethyl-1,6-heptadien-3-ol suggests that coordination of two C equals C bonds and the hydroxyl group with a single copper (I) is important. The derived bicyclo left bracket 3. 2. 0 right bracket heptan 2-ones fragment cleanly at 580 degree C to afford cyclopent-2-en-1-ones. Geometric isomerization competes with photobicyclization of (E)- and (Z)-octa-2,7-dien-1-ols.

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