Efficient detergent for fabrics
A stain remover, high-efficiency technology, applied in the field of washing, can solve the problems of leaving marks, fabric wear, fabric loss of color, etc., to achieve good dimensional stability and low friction.
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Embodiment 1
[0029] Step (1) Weigh 6g of 3-carboxybenzaldehyde, 40g of n-butanol and 0.5g of concentrated sulfuric acid;
[0030] Step (2) drops 3-carboxybenzaldehyde, n-butanol and concentrated sulfuric acid into a reactor with stirring function, and reacts The temperature of the kettle was set to 80°C, the stirring speed of the stirrer was set to 50r / min, and the reaction time was 20min. After the reaction was completed, it was filtered, purified and dried by chromatography column to obtain the benzoic acid derivative:.
[0031] Step (3) Put 20g of benzoic acid derivative, 6g of NaCN, 40g of toluene and 5g of o-carboxybenzaldehyde into the reactor, set the temperature of the reactor to 100°C, set the reaction time to 20min, and filter after the reaction is completed , and chromatographic column purification and drying to obtain benzoin derivatives:
[0032] .
[0033] Step (4) Put 5 g of benzoin derivatives and 20 g of nitric acid into a reaction kettle with stirring function, the c...
Embodiment 2
[0044] One, the preparation of phenytoin derivatives:
[0045] Step (1) Weigh 15g of 3-carboxybenzaldehyde, 80g of n-butanol and 2g of concentrated sulfuric acid;
[0046] Step (2) Put 3-carboxybenzaldehyde, n-butanol and concentrated sulfuric acid into the reactor with stirring function, set the temperature of the reactor to 100°C, and set the stirring speed of the stirrer to 150r / min, The reaction time is 1h, after the reaction is completed, filter, and chromatographic column purification and drying to obtain benzoic acid derivatives:
[0047] .
[0048] Step (3) Put 40g of benzoic acid derivatives, 10g of NaCN, 80g of toluene and 10g of o-carboxybenzaldehyde into the reactor, set the temperature of the reactor at 120°C, set the reaction time at 40min, and filter after the reaction , and chromatographic column purification and drying to obtain benzoin derivatives:
[0049] .
[0050] Step (4) Put 15g of benzoin derivative and 80g of nitric acid into a reactor with st...
Embodiment 3
[0061] One, the preparation of phenytoin derivatives:
[0062] Step (1) Weigh 10g of 3-carboxybenzaldehyde, 50g of n-butanol and 1g of concentrated sulfuric acid;
[0063] Step (2) Put 3-carboxybenzaldehyde, n-butanol and concentrated sulfuric acid into the reactor with stirring function, set the temperature of the reactor to 90°C, and set the stirring speed of the stirrer to 100r / min, The reaction time is 40min. After the reaction is completed, filter, and chromatographic column purification and drying obtain the benzoic acid derivative:
[0064] .
[0065] Step (3) Put 30g of benzoic acid derivative, 8g of NaCN, 60g of toluene and 8g of o-carboxybenzaldehyde into the reactor, set the temperature of the reactor to 110°C, set the reaction time to 30min, and filter after the reaction is completed , and chromatographic column purification and drying to obtain benzoin derivatives:
[0066] .
[0067] Step (4) Put 10 g of benzoin derivatives and 50 g of nitric acid into a ...
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