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155203-56-8

Trimethyl-[2-(toluene-4-sulfonylmethyl)-benzyl]-silane is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 155203-56-8 Structure

  • Basic information

    1. Product Name: Trimethyl-[2-(toluene-4-sulfonylmethyl)-benzyl]-silane
    2. Synonyms: Trimethyl-[2-(toluene-4-sulfonylmethyl)-benzyl]-silane
    3. CAS NO:155203-56-8
    4. Molecular Formula:
    5. Molecular Weight: 332.539
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 155203-56-8.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: Trimethyl-[2-(toluene-4-sulfonylmethyl)-benzyl]-silane(CAS DataBase Reference)
    10. NIST Chemistry Reference: Trimethyl-[2-(toluene-4-sulfonylmethyl)-benzyl]-silane(155203-56-8)
    11. EPA Substance Registry System: Trimethyl-[2-(toluene-4-sulfonylmethyl)-benzyl]-silane(155203-56-8)

  • 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: 155203-56-8(Hazardous Substances Data)

155203-56-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 155203-56-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,2,0 and 3 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 155203-56:
(8*1)+(7*5)+(6*5)+(5*2)+(4*0)+(3*3)+(2*5)+(1*6)=108
108 % 10 = 8
So 155203-56-8 is a valid CAS Registry Number.

155203-56-8Relevant articles and documents

Synthesis and Conversions of Substituted o-[(Trimethylsilyl)methyl]benzyl p-Tolyl Sulfones to o-Quinodimethanes and Products Thereof

Lenihan, Brian D.,Shechter, Harold

, p. 2072 - 2085 (2007/10/03)

Use of o-[(trimethylsilyl)methyl]benzyl p-tolyl sulfone (3) for synthesis and cycloaddition of substituted o-quinodimethanes has been investigated. Sulfone 3 is prepared from 2-methylbenzyl alcohol (4) by reactions with n-BuLi and chlorotrimethylsilane to form o-[(trimethylsilyl)methyl]-benzyl alcohol (7) which phosphorus tribromide converts to o-[(trimethylsilyl)methyl]benzyl bromide (8). Displacement of 8 with sodium p-toluenesulfinate yields 3. Sulfone 3 is alkylated at its α-sulfonyl position upon deprotonation with n-BuLi followed by methyl iodide, ethyl, butyl, allyl, and benzyl bromides, and 5-bromo-1-pentene, respectively. Acylations occur using acid chlorides. Dialkylation occurs upon further reaction with n-BuLi and an alkyl halide. 1,4-Eliminations of α,α-dialkyl sulfones 11 with tetrabutylammonium fluoride (TBAF) give α,α-dialkyl-o-quinodimethanes (29); 3 is therefore a synthon for the o-quinodimethane-α,α-dianion (34). o-Quinodimethanes 29 undergo (1) cycloaddition with acrylonitrile, acrylate esters, and alkyl fumarates to yield 1,1-disubstituted-tetrahydronaphthalenes (30) and (2) 1,5-sigmatropic rear-rangements of hydrogen to give styrenes (32). The stereochemistries of the various cycloadditions reveal significant mechanism information.

Substituted o-benzyl p-Tolyl Sulfones: Practical Reagents for Preparing Cycloadducts of o-Quinodimethanes

Lenihan, Brian D.,Shechter, Harold

, p. 7505 - 7508 (2007/10/02)

Effective methods for synthesis and 1,4-elimination of silyl sulfones to o-quinodimethanes have been developed.

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