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CAS

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221557-13-7

1-tert-butoxycarbonyl-4-phenoxycarbonyl-1,4,5,6-tetrahydropyrazine-2-(N-tert-butyl)carboxamide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 221557-13-7 Structure

  • Basic information

    1. Product Name: 1-tert-butoxycarbonyl-4-phenoxycarbonyl-1,4,5,6-tetrahydropyrazine-2-(N-tert-butyl)carboxamide
    2. Synonyms: 1-tert-butoxycarbonyl-4-phenoxycarbonyl-1,4,5,6-tetrahydropyrazine-2-(N-tert-butyl)carboxamide
    3. CAS NO:221557-13-7
    4. Molecular Formula:
    5. Molecular Weight: 403.478
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 221557-13-7.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: 1-tert-butoxycarbonyl-4-phenoxycarbonyl-1,4,5,6-tetrahydropyrazine-2-(N-tert-butyl)carboxamide(CAS DataBase Reference)
    10. NIST Chemistry Reference: 1-tert-butoxycarbonyl-4-phenoxycarbonyl-1,4,5,6-tetrahydropyrazine-2-(N-tert-butyl)carboxamide(221557-13-7)
    11. EPA Substance Registry System: 1-tert-butoxycarbonyl-4-phenoxycarbonyl-1,4,5,6-tetrahydropyrazine-2-(N-tert-butyl)carboxamide(221557-13-7)

  • 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: 221557-13-7(Hazardous Substances Data)

221557-13-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 221557-13-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,5,5 and 7 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 221557-13:
(8*2)+(7*2)+(6*1)+(5*5)+(4*5)+(3*7)+(2*1)+(1*3)=107
107 % 10 = 7
So 221557-13-7 is a valid CAS Registry Number.

221557-13-7Downstream Products

221557-13-7Relevant articles and documents

Asymmetric hydrogenation of 1,4,5,6-tetrahydropyrazine-2-(N-tert- butyl)carboxamide catalyzed by trans-chelating chiral diphosphine-rhodium complexes

Kuwano,Ito

, p. 1232 - 1237 (1999)

Highly enantioselective hydrogenation of 1,4,5,6-tetrahydropyrazine-2- (N-tert-butyl)carboxamide (2) was accomplished by a rhodium complex coordinated with a chiral diphosphine TRAP ligand, which is possible to chelate to a transition metal atom in a trans-manner. Of particular interest is that (R,R)-(S,S)-i-BuTRAP gave 97% ee of the corresponding piperazine-2- carboxylic acid derivative (3) with (S) configuration, while the hydrogenation with (R,R)-(S,S)-MeTRAP-rhodium catalyst provided (R)-3 with up to 85% ee. 31P NMR studies of behavior of i-Bu- and MeTRAP-rhodium catalysts during the reaction suggest that the asymmetric hydrogenation of 2 with TRAPs may involve two competitive reaction pathways, giving their respective enantiomeric products 3.

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