Pyrazine synthesis

12synthesis methods

Product Name:Pyrazine
CAS Number:290-37-9
Molecular formula:C4H4N2
Molecular Weight:80.09

Prepared by cyclization of α-amino ketones, which were produced by the reduction of isonitroso ketones to yield the dihydropyrazines, which are dehydrogenated with mercury(I) oxide or copper(II) sulfate or sometimes with atmospheric oxygen.

141-43-5 Synthesis

141-43-5
854 suppliers
$9.00/10g

290-37-9
294 suppliers
$5.00/5g

Yield:-

Steps:

S.8 SPECIFIC EXAMPLE 8
SPECIFIC EXAMPLE 8 Ethanolamine was subjected to a reaction as described in Example 7 and the reactor temperature was at 300°C. Pyrazine was obtained as the major cyclocondensation product.

References:

TEXACO DEVELOPMENT CORPORATION EP363532, 1990, A1

19847-12-2
332 suppliers
$6.00/5g

290-37-9
294 suppliers
$5.00/5g

References

57-55-6 Synthesis

57-55-6
1503 suppliers
$5.00/1g

107-15-3
9 suppliers
$11.19/25ML

290-37-9
294 suppliers
$5.00/5g

109-08-0
409 suppliers
$6.00/10g

References

107-15-3
9 suppliers
$11.19/25ML

56-81-5 Synthesis

56-81-5
1613 suppliers
$5.00/25g

290-37-9
294 suppliers
$5.00/5g

109-08-0
409 suppliers
$6.00/10g

123-32-0 Synthesis

123-32-0
483 suppliers
$6.00/5g

5910-89-4 Synthesis

5910-89-4
378 suppliers
$5.00/5g

6705-33-5
129 suppliers
$14.14/250mgs:

108-50-9
367 suppliers
$10.00/10g

5780-66-5 Synthesis

5780-66-5
170 suppliers
$17.00/100mg

References

107-15-3
9 suppliers
$11.19/25ML

290-37-9
294 suppliers
$5.00/5g

References

Pyrazine Related Search:

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