2-isopropylpyrazine - CAS 29460-90-0
Catalog number: 29460-90-0
Category: Main Product
Molecular Formula:
C7H10N2
Molecular Weight:
122.17
COA:
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Purity:
95%
Appearance:
Colorless to pale yellow clear liquid
Synonyms:
(1-methylethyl)-pyrazin; 2-ISOPROPYLPYRAZINE; FEMA 3940; FEMA NUMBER 3940; isopropylpyrazine; Pyrazine, (1-methylethyl)-; (1-Methylethyl)pyrazine
MSDS:
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Boiling Point:
169.8ºC at 760 mmHg
Density:
0.969 g/cm3
1.Enantioselective syntheses of isotopically labelledα-amino acids Preparation of specifically(13)C-labelled L-lysines.
Raap J1, Wolthuis WN, Hehenkamp JJ, Lugtenburg J. Amino Acids. 1995 Jun;8(2):171-86. doi: 10.1007/BF00806490.
[2-(13)C]-L-lysine, [3,4-(13)C2]-L-lysine and [5,6-(13)C2]-L-lysine are prepared from simple, commercially available, highly enriched starting materials as [2-(13)C]-glycine, ethyl [1,2-(13)C2]-bromo acetate, and [1,2-(13)C2]-acetonitrile. The introduction of the chiral center is based on a general method starting from the bis-lactim ether of cyclo-(D-Val-Gly). The synthesis of (2R)-[5-(13)C]-3,6-diethoxy-2,5-dihydro-2-isopropylpyrazine is described. The availability of our method for the preparation of specifically enriched bis-lactim ethers allows the synthesis of a great variety of site specific isotopically labelled (L- and D-)α-amino acids. Moreover, intermediate 4-[(2R,5S)-3,6-diethoxy-2,5-dihydro-2-isopropyl-5-pyrazinyl]butyronitrile is a valuable precursor in the synthesis of L-α-aminoadipic acid. The synthetic scheme in this publication makes both L-lysine and L-α-aminoadipic acid(13)C- or(15)N-labelled at any position, easily available.
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CAS 29460-90-0 2-isopropylpyrazine

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