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1256278-79-1

1,1'-(1,3-phenylene)bis(2,2-difluoroethene-1,1-diyl) bis(p-toluenesulfonate) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 1256278-79-1 Structure

  • Basic information

    1. Product Name: 1,1'-(1,3-phenylene)bis(2,2-difluoroethene-1,1-diyl) bis(p-toluenesulfonate)
    2. Synonyms: 1,1'-(1,3-phenylene)bis(2,2-difluoroethene-1,1-diyl) bis(p-toluenesulfonate)
    3. CAS NO:1256278-79-1
    4. Molecular Formula:
    5. Molecular Weight: 542.529
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 1256278-79-1.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: 1,1'-(1,3-phenylene)bis(2,2-difluoroethene-1,1-diyl) bis(p-toluenesulfonate)(CAS DataBase Reference)
    10. NIST Chemistry Reference: 1,1'-(1,3-phenylene)bis(2,2-difluoroethene-1,1-diyl) bis(p-toluenesulfonate)(1256278-79-1)
    11. EPA Substance Registry System: 1,1'-(1,3-phenylene)bis(2,2-difluoroethene-1,1-diyl) bis(p-toluenesulfonate)(1256278-79-1)

  • 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: 1256278-79-1(Hazardous Substances Data)

1256278-79-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1256278-79-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,6,2,7 and 8 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1256278-79:
(9*1)+(8*2)+(7*5)+(6*6)+(5*2)+(4*7)+(3*8)+(2*7)+(1*9)=181
181 % 10 = 1
So 1256278-79-1 is a valid CAS Registry Number.

1256278-79-1Relevant articles and documents

Efficient synthesis of 2,2-diaryl-1,1-difluoroethenes via consecutive cross-coupling reactions of 2,2-difluoro-1-tributylstannylethenyl p -toluenesulfonate

Han, Seung Yeon,Jeong, In Howa

, p. 5518 - 5521 (2010)

2,2-Difluoro-1-tributylstannylethenyl p-toluenesulfonate (2) was reacted with aryl iodides in the presence of 10 mol % of Pd(PPh3)4 and 10 mol % of CuI in DMF at 80 °C for 10-20 h to give the cross-coupled products 3 in 35-97% yields. Further coupling reaction of 3 with arylstannanes in the presence of 5 mol % of Pd(PPh3)4 and 3 equiv of LiBr in DMF at 100 °C for 2-24 h afforded the desired products 5 in 25-78% yields.

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