Plant growth regulator bis-diethylaminoethanol sebacate citrate compound and preparation method thereof
A technology of sebacic acid diethylaminoethanol and growth regulators, which is applied in the direction of plant growth regulators, preparation of aminohydroxyl compounds, preparation of organic compounds, etc. High cost and other problems, to achieve the effect of improving fruit quality, low cost, and less investment in equipment
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Embodiment 1
[0028] Example 1 Add 20.2g (0.1mol) of sebacic acid, 35.1g (0.3mol) of N,N-diethylaminoethanol, 0.8g of sulfuric acid in a 250ml four-necked flask equipped with a stirrer, water separator and reflux device Titanium oxide, 20ml xylene, stirred and heated to 150°C and refluxed for 5h until 3.6g (0.2mol) of water was separated, filtered to remove the catalyst (directly reused), the filtrate was transferred to another 250ml three-necked flask, and distilled under reduced pressure After removing the solvent (for recycling), excess diethylaminoethanol (for recycling) and low boiling point substances, add 3.0g of activated clay and stir for 30 minutes, cool down to below 80°C, and filter to obtain light yellow oily liquid diethyl sebacate Aminoethanol ester 37.04g, yield 92.6%. Then mix bis-diethylaminoethanol sebacate with twice the mole of citric acid and heat it to 100°C to melt the citric acid, then cool and crystallize under stirring to obtain a white powdery solid product bis-d...
Embodiment 2
[0029] Example 2 Add 20.2 g (0.1 mol) of sebacic acid, 23.4 g (0.2 mol) of N, N-diethylaminoethanol, 0.8 g of sulfuric acid in a 250 ml four-necked flask equipped with a stirrer, water separator and reflux device Titanium oxide, 40ml xylene, stirred and heated to 140°C and refluxed for 8 hours until 3.6g (0.2mol) of water was separated, filtered to remove the catalyst (directly reused), the filtrate was transferred to another 250ml three-necked flask, and distilled under reduced pressure After removing the solvent (recycled) and low boiling point substances, add 3.0g activated clay and stir for 30 minutes, cool down to below 80°C, filter to obtain 33.72g of light yellow oily liquid bis-diethylaminoethanol sebacate, yield 84.3% . Then mix bis-diethylaminoethanol sebacate with twice the mole of citric acid and heat it to 100°C to melt the citric acid, then cool and crystallize under stirring to obtain a white powdery solid product bis-diethyl sebacate Amino Ethanol Ester Citrat...
Embodiment 3
[0030] Example 3 Add 20.2g (0.1mol) of sebacic acid, 35.1g (0.3mol) of N,N-diethylaminoethanol, 0.8g of titanium dioxide in a 250ml four-neck flask equipped with a stirrer, water separator and reflux device , 20ml of xylene, stirred and heated to 150°C for 8 hours under reflux until 3.6g (0.2mol) of water was separated, filtered to remove the catalyst (direct reuse), the filtrate was transferred to another 250ml three-necked flask, and the solvent was distilled off under reduced pressure (recycling), excess diethylaminoethanol (recycling) and low boiling point substances, add 3.0g activated clay and stir for 30 minutes, cool down to below 80°C, filter to obtain light yellow oily liquid bis-diethylamino sebacic acid Ethanol ester 35.52g, yield 88.8%. Then mix bis-diethylaminoethanol sebacate with twice the mole of citric acid and heat it to 100°C to melt the citric acid, then cool and crystallize under stirring to obtain a white powdery solid product bis-diethyl sebacate Amino...
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