Menadione synthesis
- Product Name:Menadione
- CAS Number:58-27-5
- Molecular formula:C11H8O2
- Molecular Weight:172.18
91-57-6
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$13.00/5g
58-27-5
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$5.00/250mg
Yield:58-27-5 100%
Reaction Conditions:
with dihydrogen peroxide;glacial acetic acid in lithium hydroxide monohydrate at 75; for 5 h;Product distribution / selectivity;
Steps:
1
EXAMPLE 1[18] A solution of 2-methylnaphthalene (5 gr, 35.2 mmol) in glacial acetic (40,5 ml, 0.703 mol) acid is heated to 75 °C under stirring. After reaching to 75 °C, hydrogen peroxide (30%) is added in 3 minutes and the resulting mixture is stirred for further 5 hours at 75 °C. The reactions are analyzed using GC, GC-MS and NMR. Different molar ratios of 2-methylnaphthalene and hydrogen peroxide (30%) are studied. The results of the conversion and selectivity are given in Table 1.
References:
WO2012/28905,2012,A1 Location in patent:Page/Page column 5
3090-46-8
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58-27-5
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64-19-7
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130-15-4
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$16.00/1g
58-27-5
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16368-80-2
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58-27-5
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481-85-6
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$35.00/100mg
58-27-5
580 suppliers
$5.00/250mg