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140837-90-7

DL-Alanine, N-(1,3-dioxobutyl)-N-(phenylmethyl)-, ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 140837-90-7 Structure

  • Basic information

    1. Product Name: DL-Alanine, N-(1,3-dioxobutyl)-N-(phenylmethyl)-, ethyl ester
    2. Synonyms:
    3. CAS NO:140837-90-7
    4. Molecular Formula: C16H21NO4
    5. Molecular Weight: 291.347
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 140837-90-7.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: DL-Alanine, N-(1,3-dioxobutyl)-N-(phenylmethyl)-, ethyl ester(CAS DataBase Reference)
    10. NIST Chemistry Reference: DL-Alanine, N-(1,3-dioxobutyl)-N-(phenylmethyl)-, ethyl ester(140837-90-7)
    11. EPA Substance Registry System: DL-Alanine, N-(1,3-dioxobutyl)-N-(phenylmethyl)-, ethyl ester(140837-90-7)

  • 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: 140837-90-7(Hazardous Substances Data)

140837-90-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 140837-90-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,8,3 and 7 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 140837-90:
(8*1)+(7*4)+(6*0)+(5*8)+(4*3)+(3*7)+(2*9)+(1*0)=127
127 % 10 = 7
So 140837-90-7 is a valid CAS Registry Number.

140837-90-7Relevant articles and documents

Further Reactions of t-Butyl 3-Oxobutanthioate and t-Butyl 4-Diethylphosphono-3-oxobutanthioate: Carbonyl Coupling Reactions, Amination, Use in The Preparation of 3-Acyltetramic Acids and Application to The Total Synthesis of Fuligorubin A.

Ley, Steven V.,Smith, Stephen C.,Woodward, Peter R.

, p. 1145 - 1174 (2007/10/02)

Key words: Acyltetramic acid; Phosphonate; Wadsworth-Emmons; Dieckmann cyclisation; Fuligorubin A. Abstract: The use of t-butyl-3-oxobutanthioate (1) and t-butyl 4-diethylphosphono-3-oxobuthanthioate (2) for the preparation of homologated derivatives suitable for amination in the presence of silver(I) trifluoroacetate to afford the corresponding β-ketoamides is discussed.In particular Wadsworth-Emmons coupling reactions of (2) with various carbonyl compounds gave good yields of E-substituted products.Many of the β-ketoamides were shown to be suitable precursors for 3-acyltetramic acids using a Dieckman cyclisation with tetra-n-butyl ammonium fluoride as the cyclising base.These new reactions were applied to the total synthesis of the polyene 3-acyltetramic acid fuligorubin A.

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