Chrysophanic acid synthesis
- Product Name:Chrysophanic acid
- CAS Number:481-74-3
- Molecular formula:C15H10O4
- Molecular Weight:254.24
71013-35-9
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481-74-3
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Yield:481-74-3 45%
Reaction Conditions:
with nicotinic acid;sulfuric acid;boric acid at 120; for 2 h;
Steps:
1.5
5) "4)"The resulting product is lg plus 98% sulfuric acid 6g, plus 0.5g boric acid, plus 2.3g fuming acid, heated to 120 ° C, incubated for 2 hours, add water 8g, filtered to obtain the product, extracted with dichloromethane, evaporated to dryness Product chrysophanol, yield 45%, content 99.5%.
References:
CN107698442,2018,A Location in patent:Paragraph 0019; 0024
3300-25-2
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481-74-3
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1396259-15-6
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67116-22-7
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72036-12-5
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481-74-3
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