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203782-28-9

[(S)-1-(4-Carbamoyl-5-methyl-oxazol-2-yl)-2-methyl-propyl]-carbamic acid benzyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 203782-28-9 Structure

  • Basic information

    1. Product Name: [(S)-1-(4-Carbamoyl-5-methyl-oxazol-2-yl)-2-methyl-propyl]-carbamic acid benzyl ester
    2. Synonyms: [(S)-1-(4-Carbamoyl-5-methyl-oxazol-2-yl)-2-methyl-propyl]-carbamic acid benzyl ester
    3. CAS NO:203782-28-9
    4. Molecular Formula:
    5. Molecular Weight: 331.371
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 203782-28-9.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: [(S)-1-(4-Carbamoyl-5-methyl-oxazol-2-yl)-2-methyl-propyl]-carbamic acid benzyl ester(CAS DataBase Reference)
    10. NIST Chemistry Reference: [(S)-1-(4-Carbamoyl-5-methyl-oxazol-2-yl)-2-methyl-propyl]-carbamic acid benzyl ester(203782-28-9)
    11. EPA Substance Registry System: [(S)-1-(4-Carbamoyl-5-methyl-oxazol-2-yl)-2-methyl-propyl]-carbamic acid benzyl ester(203782-28-9)

  • 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: 203782-28-9(Hazardous Substances Data)

203782-28-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 203782-28-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,7,8 and 2 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 203782-28:
(8*2)+(7*0)+(6*3)+(5*7)+(4*8)+(3*2)+(2*2)+(1*8)=119
119 % 10 = 9
So 203782-28-9 is a valid CAS Registry Number.

203782-28-9Relevant articles and documents

Synthesis of functionalised oxazoles and bis-oxazoles

Bagley, Mark C.,Buck, Richard T.,Hind, S. Lucy,Moody, Christopher J.

, p. 591 - 600 (1998)

A new method for the synthesis of oxazoles, and in particular chiral non-racemic oxazoles derived from amino acids, has been developed. Thus, rhodium(II) catalysed reaction of diazocarbonyl compounds 6 and 11 in the presence of amides 8 and 10 results in regioselective insertion of the carbenoid into the amide N-H bond with formation of the β-carbonyl amides 9 and 12. Cyclodehydration of amides 9 and 12 using triphenylphosphine-iodine-triethylamine gives functionalised oxazoles 7 and 13. The oxazoles 13c and 13f were converted into the bis-oxazoles 17a and 17b by a second rhodium(II) catalysed regioselective N-H insertion reaction on the amides 15, followed by cyclodehydration.

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