Process, method and device for synthesizing o-methoxycinnamaldehyde
A technology of o-methoxycinnamaldehyde and o-methoxybenzaldehyde, applied in chemical instruments and methods, preparation of organic compounds, separation/purification of carbonyl compounds, etc., can solve the high production cost of o-methoxycinnamaldehyde , complex synthesis process and equipment, etc., to achieve the effect of low cost, low cost, and simple synthesis equipment
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Embodiment 1
[0032] like figure 1 Shown, a kind of processing method for synthesizing o-methoxycinnamaldehyde, comprises the steps:
[0033] S1, in the reactor, add the clean water of 55 weight parts and the ethanol of 3 weight parts, the oil tank temperature that synchronously sets the reactor is 55 ℃;
[0034] S2, add the alkali of 2 weight parts in the reactor, in the process of mixing and stirring, the temperature of the system is slowly raised to 28 ℃, and stirred for 14min;
[0035] S3, in the reactor, add the o-methoxybenzaldehyde of 3 parts by weight again, after stirring 18min, the system in the reactor is warmed up to 80 ℃, and maintains this temperature;
[0036] S4, dropwise add 5 parts by weight of acetaldehyde into the reactor, keep the system in the reactor at 82°C, and keep the temperature for 6h;
[0037] S5, the system in the reactor is cooled to below 25 ℃, then 10 parts by weight of ethyl acetate are added, the reaction is stirred for 10min, the organic phase is separ...
Embodiment 2
[0045] like figure 1 Shown, a kind of processing method for synthesizing o-methoxycinnamaldehyde, comprises the steps:
[0046] S1, in the reactor, add the clean water of 65 weight parts and the ethanol of 5 weight parts, the oil tank temperature that synchronously sets the reactor is 65 ℃;
[0047] S2, add the alkali of 3 weight parts in the reactor, in the mixing and stirring process, the temperature of the system is slowly raised to 35 ℃, and stirred for 14min;
[0048] S3, in the reactor, add the o-methoxybenzaldehyde of 5 weight parts again, after stirring 25min, the system in the reactor is warmed up to 80 ℃, and maintains this temperature;
[0049] S4, dropwise add 6 parts by weight of acetaldehyde to the reactor, keep the system in the reactor at 84°C, and keep the temperature for 8h;
[0050] S5, the system in the reactor is cooled to below 25 ° C, then 12 parts by weight of ethyl acetate are added, the reaction is stirred for 15min, the organic phase is separated, ...
Embodiment 3
[0058] like figure 1 Shown, a kind of processing method for synthesizing o-methoxycinnamaldehyde, comprises the steps:
[0059] S1, in the reactor, add the clean water of 60 weight parts and the ethanol of 4 weight parts, the oil tank temperature that synchronously sets the reactor is 60 ℃;
[0060] S2, add the alkali of 3 weight parts in the reactor, in the mixing and stirring process, the temperature of the system is slowly raised to 30 ℃, and stirred for 10min;
[0061] S3, in the reactor, add the o-methoxybenzaldehyde of 5 weight parts again, after stirring 20min, the system in the reactor is warmed up to 80 ℃, and maintains this temperature;
[0062] S4, dropwise add 6 parts by weight of acetaldehyde to the reactor, keep the system in the reactor at 82°C, and keep the temperature for 7h;
[0063] S5, the system in the reactor is cooled to below 25 ° C, then 10 parts by weight of ethyl acetate are added, the reaction is stirred for 10min, the organic phase is separated, th...
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