Novel diaryl nonane I free radical inhibitor in Saxifraga sinomontana as well as separation and preparation process and application of the novel diaryl nonane I free radical inhibitor
A technology of diarylnonane and preparation process is applied in the field of diarylnonane class I free radical inhibitor, and achieves the effects of low cost, easy operation, and easy batch preparation
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Embodiment 1
[0042] The separation and preparation process of the new diarylnonane class I free radical inhibitor in saxifrage, specifically includes the following steps:
[0043] Step 1, extraction: take 170g of saxifrage whole herb and dry it in the shade, coarsely crush it and extract it with methanol at a solid-to-liquid ratio of 1g: 5mL, extract 4 times at room temperature, each time for 2h, filter and combine the filtrates, that is, filtrate A, the The filtrate A is dried under reduced pressure to obtain the saxifrage extract, according to the amount of polyamide: the amount of the saxifrage extract=3:1, mix the sample and dry under reduced pressure, and then the mixed sample of the saxifrage extract is obtained ; Among them, the conditions of the two decompression drying are: vacuum degree 50mbar, temperature 40°C, and the mixed sample of the obtained saxifrage extract is 70.8g;
[0044] Step 2, online free radical inhibitor component screening: Add methanol with a volume concentrat...
Embodiment 2
[0050] The separation and preparation process of the new diarylnonane class I free radical inhibitor in saxifrage, specifically includes the following steps:
[0051] Step 1, extraction: take 500g of saxifrage whole herb and dry it in the shade, coarsely crush it and extract it according to the ratio of solid to liquid: 1g: 100mL of methanol, extract twice at room temperature, each time for 4h, filter and combine the filtrates, that is, filtrate A, the The filtrate A is dried under reduced pressure to obtain the saxifrage extract, according to the amount of polyamide: the amount of the saxifrage extract=3:1, mix the sample and dry under reduced pressure, and then the mixed sample of the saxifrage extract is obtained ; Among them, the conditions of the two decompression drying are: the vacuum degree is 250mbar, the temperature is 60°C, and the mixed sample of the obtained saxifrage extract is 198.5g;
[0052] Step 2, online free radical inhibitor component screening: add methan...
Embodiment 3
[0058] The separation and preparation process of the new diarylnonane class I free radical inhibitor in saxifrage, specifically includes the following steps:
[0059] Step 1, extraction: take 1000g of saxifrage whole herb and dry it in the shade, coarsely crush it and extract it according to the ratio of solid to liquid: 1g: 50mL of methanol, extract 3 times at room temperature, each time for 3h, filter and combine the filtrates, that is, filtrate A, the The filtrate A is dried under reduced pressure to obtain the saxifrage extract, according to the amount of polyamide: the amount of the saxifrage extract = 3:1, mix the sample and dry under reduced pressure to obtain the mixed sample of the saxifrage extract ; Among them, the conditions of the two decompression drying are: the vacuum degree is 100mbar, the temperature is 50°C, and the mixed sample of the obtained saxifrage extract is 389.4g;
[0060]Step 2, online free radical inhibitor component screening: add methanol with a...
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