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124920-20-3

2-Isopropyl-5-methyl-1-(toluene-4-sulfonyl)-pyrrolidine is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 124920-20-3 Structure

  • Basic information

    1. Product Name: 2-Isopropyl-5-methyl-1-(toluene-4-sulfonyl)-pyrrolidine
    2. Synonyms: 2-Isopropyl-5-methyl-1-(toluene-4-sulfonyl)-pyrrolidine
    3. CAS NO:124920-20-3
    4. Molecular Formula:
    5. Molecular Weight: 281.419
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 124920-20-3.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-Isopropyl-5-methyl-1-(toluene-4-sulfonyl)-pyrrolidine(CAS DataBase Reference)
    10. NIST Chemistry Reference: 2-Isopropyl-5-methyl-1-(toluene-4-sulfonyl)-pyrrolidine(124920-20-3)
    11. EPA Substance Registry System: 2-Isopropyl-5-methyl-1-(toluene-4-sulfonyl)-pyrrolidine(124920-20-3)

  • 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: 124920-20-3(Hazardous Substances Data)

124920-20-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124920-20-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,9,2 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 124920-20:
(8*1)+(7*2)+(6*4)+(5*9)+(4*2)+(3*0)+(2*2)+(1*0)=103
103 % 10 = 3
So 124920-20-3 is a valid CAS Registry Number.

124920-20-3Downstream Products

124920-20-3Relevant articles and documents

Piperidines from acid-catalysed cyclisations: Pitfalls, solutions and a new ring contraction to pyrrolidines

Aldmairi, Abdul H.,Griffiths-Jones, Charlotte,Dupauw, Alexis,Henderson, Laura,Knight, David W.

, p. 3690 - 3694 (2017)

The success of acid-catalysed cyclisations of alka-4-enylamine derivatives to piperidines depends very much on the nature of the amine protecting group: while carbamates and related amides can usually be readily and cleanly transformed, the corresponding sulfonamides react further by ring contraction leading to pyrrolidines, especially when such substrates are sterically crowded.

Electroorganic chemistry. 120. New patterns of anodic oxidation of amides. Synthesis of α-amino aldehyde acetals and pyrrolidines from amines

Shono, Tatsuya,Matsumura, Yoshihiro,Katoh, Susumu,Takeuchi, Kei,Sasaki, Katsushi,Kamada, Tohru,Shimizu, Rie

, p. 2368 - 2372 (2007/10/02)

Anodic oxidation of N-alkyltosylamides 1 in methanol containing KX (X = Br, I) gave two types of products, α-(tosylamino) aldehyde acetals 2 and pyrrolidine derivatives 3, and each of the products could selectively be formed by modifying the reaction conditions when the alkyl group on the nitrogen of 1 was not branched at its α-position. Namely, anodic oxidation ot N-(α-unbranched alkyl)tosylamides 1a-g in methanol containing NaOMe and KI at -10°C followed by further anodic oxidation at 25°C afforded 2 in good yields, while that of 1 in a two-layer system consisting of cyclohexane and water containing KOH and KBr under heating yielded solely 3. On the other hand, N-(α-branched alkyl)tosylamides 1h-j gave always 3. Two types of reaction routes leading to each of the products were proposed.

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