CN106432386B - A method of using aurantiin as Material synthesis neohesperidin - Google Patents

A method of using aurantiin as Material synthesis neohesperidin Download PDF

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CN106432386B
CN106432386B CN201610723564.7A CN201610723564A CN106432386B CN 106432386 B CN106432386 B CN 106432386B CN 201610723564 A CN201610723564 A CN 201610723564A CN 106432386 B CN106432386 B CN 106432386B
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neohesperidin
crystallization
aurantiin
temperature
material synthesis
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CN106432386A (en
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李伟
龙伟岸
黄华学
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Hunan Huacheng Biotech Inc
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    • C07H17/00Compounds containing heterocyclic radicals directly attached to hetero atoms of saccharide radicals
    • C07H17/04Heterocyclic radicals containing only oxygen as ring hetero atoms
    • C07H17/06Benzopyran radicals
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    • C07H17/07Benzo[b]pyran-4-ones
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Abstract

A method of using aurantiin as Material synthesis neohesperidin, comprising the following steps: (1) it hydrolyzes: aurantiin is dissolved in aqueous alkali, heating, pressurized hydrolysis, it is cooled to room temperature, is adjusted with acid pH value, cooling crystallization, filtering, it is dry, obtain hydrolysate --- PN;(2) it being condensed: PN is dissolved in organic solvent, isovanillin and histidine is added, back flow reaction freezes crystallization, filters, and it is dry, obtain neohesperidin crude product;(3) it refines: neohesperidin crude product being dissolved by heating with low carbon alcohol solution, cooling crystallization, filtered, filtration cakes torrefaction obtains neohesperidin fine work.It may be up to 99.5% according to the purity of neohesperidin in the method for the present invention products obtained therefrom, impurity content is few, the high income of neohesperidin;The dosage of the method for the present invention alkali and catalyst is few, and the reaction time is short, at low cost, and technical process is not necessarily to inert gas shielding, is not necessarily to anhydrous response condition, is suitable for industrialized production.

Description

A method of using aurantiin as Material synthesis neohesperidin
Technical field
The present invention relates to a kind of methods for synthesizing neohesperidin, and in particular to one kind is using aurantiin as the new orange peel of Material synthesis The method of glycosides.
Background technique
Neohesperidin is a kind of important flavanone compound, its synthesis neohesperidin dihydro that is mainly used for looks into ear A kind of ketone --- novel sweetener, sugariness are 1500~1800 times of sucrose, have sugariness high, heat is small, and sweet taste is lasting, surely Qualitative good, avirulent feature is widely used in food, drug and feedstuff industry.Currently, domestic and international market is to neohesperidin two The demand of hydrogen chalcone increasingly increases, but the raw material for synthesizing neohesperidin dihydrochalcone is but difficult to meet the need in market It asks.
The existing method for obtaining a large amount of neohesperidins mainly has extraction method and synthetic method.Separation is extracted from natural plants Neohesperidin is limited by resource and production cost.Due to the destruction of ecological environment and the over-exploitation of resource, extraction method is obtained It obtains neohesperidin and does not have the production advantage.China's aurantiin is resourceful, cheap and easy to get, is that Material synthesis is newly orange with aurantiin Skin glycosides, for we provide the new methods that one obtains a large amount of neohesperidins.
US3375242 discloses a kind of neohesperidin synthetic method, and this method is by aurantiin and excessive isovanillin It directly mixes, synthesizes neohesperidin under the catalysis of potassium hydroxide.Though this method is simple, the loss of isovanillin is huge, The yield of reaction is relatively low, is not suitable for industrialized production.
US3947405 discloses a kind of neohesperidin synthetic method, and this method is by-the β of phloroacetophenone -4 '-new orange peel Glucosides (abbreviation PN) and isovanillin are dissolved in anhydrous alcohols solvent, under inert gas protection, are made using nafoxidine-acetic acid For catalyst.But this method condition is harsh, the reaction time is long, and reaction requires to carry out under conditions of absolute, has very big Limitation.
CN103408620A discloses a kind of synthesis technology of neohesperidin, and this method is to be dissolved in PN and isovanillin In 98% ethyl alcohol, major catalyst nafoxidine and co-catalyst acetic acid are successively added under nitrogen protection.But this method is reacted Process also requires that anhydrous condition, and the recycling and recycling of 98% ethyl alcohol are difficult to realize in actual operation, and this method is received Rate highest only 86%, does not have the advantage of industrialization.
CN101863940A discloses a kind of synthesis technology of neohesperidin, and this method is first used using aurantiin as raw material Basic hydrolysis aurantiin obtains PN, then with the condensation of Proline-Catalyzed PN and isovanillin, to synthesize neohesperidin.In this method Condensation step although do not need anhydrous reaction condition, still, the base amount of hydrolysing step is too big, tight to the pollution of environment Weight;Alkali concentration is high, and the side reaction that carbonyl reduction is hydroxyl easily occurs for when hydrolysis, and it is relatively low to lead to hydrolyze yield, and only 70%;And it is catalyzed Agent proline dosage is big, expensive, and dosage is excessive, and the cost of production is very high;Due to a large amount of additions of catalyst, post-processing is difficult Thoroughly to remove, cause the purity of final products neohesperidin relatively low, only 97%.
Summary of the invention
The technical problem to be solved by the present invention is to overcome drawbacks described above of the existing technology, it is pure to provide a kind of product Degree height, high income, technical process is not necessarily to inertia and anhydrous condition, at low cost, and be suitable for industrialized production is former with aurantiin The method of material synthesis neohesperidin.
The technical solution adopted by the present invention to solve the technical problems is as follows: one kind is using aurantiin as the new orange peel of Material synthesis The method of glycosides, comprising the following steps:
(1) it hydrolyzes: aurantiin is dissolved in aqueous alkali, heating, pressurized hydrolysis are cooled to room temperature, are adjusted with acid pH Value, cooling crystallization filter, dry, obtain hydrolysate ----the β of phloroacetophenone -4 '-neohesperidoside;
(2) it is condensed:-the β of phloroacetophenone -4 '-neohesperidoside obtained by step (1) is dissolved in water or organic solvent, Isovanillin and histidine is added, back flow reaction after fully reacting, freezes crystallization, filters, and it is dry, obtain neohesperidin crude product;
(3) it refines: neohesperidin crude product obtained by step (2) being dissolved by heating with low carbon alcohol solution, cooling crystallization, mistake Filter, filtration cakes torrefaction obtain neohesperidin fine work.
Preferably, in step (1), the alkali in the aqueous alkali is sodium hydroxide or potassium hydroxide, the matter of aqueous alkali Measuring concentration is 1~5%, and the liquid-solid ratio (mL/g) of aqueous alkali and aurantiin quality is more preferable 10~12) 8~15(.If alkali Concentration is too low, will lead to hydrolysis not exclusively, and yield is relatively low, if the excessive concentration of alkali, will lead to alkali and neutralizes the waste with acid, this Outside, for the product PN of hydrolysis under the alkali and high temperature action of high concentration, carbonyl can be reduced to hydroxyl, cause hydrolysis yield relatively low; If aqueous alkali dosage is very few, aurantiin will lead to compared with indissoluble solution and hydrolysis, if aqueous alkali dosage is excessive, and will lead to anti- Volume is excessive after answering liquid to be adjusted with acid pH value, and product PN is difficult to crystallize precipitation, and yield is relatively low.
Preferably, in step (1), the temperature of the hydrolysis is 90~140 DEG C (more preferable 110~130 DEG C), the pressure of hydrolysis Power is the more preferable 0.1~0.3MPa of 0.01~0.40MPa(), the time of hydrolysis is the more preferable 0.5~1.0h of 0.4~1.5h(). Studies have shown that heating, pressurized hydrolysis are conducive to the C ring (pyranone structure) in flavones molecular skeleton and beat completely in a short time It opens, the time hydrolyzed under pressurized conditions shortens dramatically;And the concentration of alkali is lower, will not induce side reaction, therefore, yield can be realized Significantly promoted.If temperature is too low, pressure is too small or the time is too short, it is incomplete to will lead to hydrolysis;If temperature is excessively high, pressure is excessive Or overlong time, it will all cause the waste of the energy and material.
Preferably, in step (1), the acid for adjusting pH value is hydrochloric acid, sulfuric acid or citric acid etc., and sour quality is dense Degree is 10~30%.If the concentration of acid is too low, it will lead to after reaction solution is adjusted with acid pH value that volume is excessive, product PN is difficult to crystallize It is precipitated, yield is relatively low;If the excessive concentration of acid, easily causes solution part acid too strong during adjusting pH value, will destroy The molecular structure of PN and cause yield relatively low.
Preferably, in step (1), pH value is adjusted to more preferable 4~6) 2~7(.If pH value is too low, the molecule of PN will be destroyed Structure and cause yield relatively low;If pH value is excessively high, PN is difficult to be precipitated in neutral or alkaline solution.
Preferably, in step (2), the organic solvent be methanol, ethyl alcohol, isopropanol, n-butanol, acetone, ethyl acetate, One or both of dichloromethane or chloroform etc.;The dosage of the water or organic solvent is the-β of phloroacetophenone -4 '-new 5~30 times (more preferable 5.2~10.0 times) of orange peel glucosides quality.If water or consumption of organic solvent are very few, PN, isovanillin and Histidine cannot sufficiently dissolve, and condensation reaction is difficult to go on smoothly;If water or consumption of organic solvent are excessive, PN, isovanillin and Concentration of the histidine in reaction solution is relatively low, and the time of reaction will extend, and reaction solution volume is excessive, and neohesperidin is difficult to fill Analysis is brilliant.
Preferably, in step (2), the additional amount of the isovanillin and histidine is so that-the β of phloroacetophenone -4 '-is new The mass ratio of orange peel glucosides, isovanillin and histidine is more preferable 1:0.31~0.35 1:0.3~0.4:0.05~0.10(: 0.06~0.08).Although proline used in histidine and background technique used in the method for the present invention is all amino acid, But also have the difference of its essence: 1) histidine is alpha amino acid (- NH2), proline is a kind of imino acid (- NH);2) ammonia is organized For acid in alkalinity, proline is not in alkalinity;3) histidine is polarity, hydrophilic amino acid, and proline is nonpolarity, hydrophobic amino Acid, therefore, they are far from each other in catalytic action.Histidine mainly plays catalytic action in the reaction, inventor the study found that Histidine other than there is amino and carboxyl as other amino acid, due to there are imidazole groups in its molecular structure (wherein Have secondary amine), stronger alkalinity is made it have, alkaline condition adds the synergistic effect of secondary amine and carboxyl, meets catalysis The condition of the reaction, in addition, the imidazole group in histidine molecule can not only be used for proton donor, but also as proton acceptor, and It confesses proton and to receive the speed of proton all very fast, so histidine can serve as efficient catalysis in this aldol condensation Agent.In the present invention, it is used due to histidine primarily as catalyst, dosage need not be excessive.
Preferably, in step (2), the temperature of the back flow reaction is 60~95 DEG C (more preferable 80~90 DEG C), reaction Time is the more preferable 5~8h of 2~10h().If the temperature of reaction is too low or the reaction time is too short, condensation reaction may result in not Completely;If the temperature of reaction is excessively high or the reaction time is too long, side reaction odds will be increased, reduce the receipts of condensation reaction Rate.
Preferably, in step (2), the temperature of the freezing crystallization is 0~5 DEG C, time of crystallization is 12~for 24 hours.
Preferably, in step (3), the low-carbon alcohols are methanol, ethyl alcohol or isopropanol etc.;The body of the low carbon alcohol solution Product concentration is more preferable 40~70%) 30~90%(, and the dosage of low carbon alcohol solution is 5~20 times of neohesperidin crude product quality (more preferable 6~12 times).Select foundation of the low-carbon alcohols as dissolution solvent are as follows: 1) at different temperature, neohesperidin is in first Dissolubility difference in alcohol, ethyl alcohol and isopropanol is larger, more conducively crystallizes;2) methanol, ethyl alcohol and isopropanol moderate boiling point are applicable in In industrial production, existing certain stability, and it is easily recycled.
Preferably, in step (3), the temperature of the heating for dissolving is 60~80 DEG C.
Preferably, in step (1), the temperature of the cooling crystallization is room temperature, and the time of crystallization is 4~8h.
Preferably, in step (3), the temperature of the cooling crystallization is 20~25 DEG C, the time of crystallization is 12~for 24 hours.
In the method for the present invention step (1), it is 81.96g that the yield of PN, which hydrolyzes according to 100g aurantiin and generates the theoretical value of PN, It calculates;In step (2), it is 128.32g calculating that the yield of neohesperidin, which is condensed according to 100gPN and generates the theoretical value of neohesperidin,.
Room temperature of the present invention is 15~25 DEG C.
The principle of the method for the present invention: C ring (pyrrole of aurantiin under the action of lye and high temperature, in flavones molecular skeleton Mutter ketone structure) it will fully open, hydrolysis generates phloroacetophenone -4 '-β-neohesperidoside (PN), and high temperature, pressurization is used in combination The amount ratio prior art of the mode of hydrolysis, alkali significantly reduces, and shortens hydrolysis time, the side reaction of hydrolysis is few, therefore Improve the yield of PN;In step of condensation, the method for the present invention is pioneering to use histidine to be condensed as PN and isovanillin Catalyst can meet the condition for being catalyzed the reaction, efficient catalyst be served as in this aldol condensation, reaction rate is high, dosage It is few.
The method of the present invention has the beneficial effect that:
(1) according to the white crystalline powder shape of neohesperidin fine work obtained by the method for the present invention, through high performance liquid chromatography outside The detection of mark method, the purity of gained neohesperidin may be up to 99.5 %, and impurity content is few, the high income of neohesperidin;
(2) the method for the present invention uses high temperature, pressurized hydrolysis mode in hydrolysing step, has saved the dosage of alkali, shortens anti- Between seasonable, the yield of PN, the yield > 85% of hydrolysis are improved;It selects histidine as catalyst in condensation step, reduces The dosage of catalyst, shortens the time of reaction, condensation reaction yield > 90%;
(3) the method for the present invention technical process is not necessarily to inert gas shielding, anhydrous response condition is not necessarily to, due to alkali and catalyst Dosage is few, each step reaction high income, reduce production cost, be suitable for industrialized production.
Specific embodiment
Below with reference to embodiment, the invention will be further described.
Aurantiin used in the embodiment of the present invention is purchased from Hunan Hua Cheng living resources limited liability company, aurantiin it is pure Degree is 98.2%;In step of the embodiment of the present invention (1), the yield of PN is according to the theoretical value that 100g aurantiin hydrolyzes generation PN 81.96g is calculated, and in step (2), the yield of neohesperidin is according to the theoretical value that 100gPN is condensed generation neohesperidin 128.32g calculating;PN in the embodiment of the present invention is the-β of phloroacetophenone -4 '-neohesperidoside abbreviation;The embodiment of the present invention Used raw material and chemical reagent are obtained by routine business approach unless otherwise specified.
In the embodiment of the present invention detection method of aurantiin, PN and neohesperidin content be high performance liquid chromatography (HPLC) outside Mark method.
Embodiment 1
(1) it hydrolyzes: 100g aurantiin being dissolved in the potassium hydroxide aqueous solution that 1000mL mass concentration is 5%, 110 DEG C, under conditions of pressure 0.1MPa, 1h is hydrolyzed, is cooled to room temperature, it is cold with the hydrochloric acid conditioning solution pH value of mass concentration 30% to 6 But to room temperature, crystallization 6h is filtered, dry, obtains 75.3g hydrolysate --- PN(purity 95.3%, yield 87.6%);
(2) it is condensed: 75.3gPN obtained by step (1) is dissolved in 400g ethyl alcohol (volumetric concentration 95%), be added 23.87g isovanillin and 4.52g histidine, at 85 DEG C, back flow reaction 5h after fully reacting, is placed reaction liquid at 0 DEG C, Crystallization 12h is freezed, is filtered, it is dry, obtain neohesperidin crude product 94.39g(purity 95.6%, yield 93.4%);
(3) refine: by 94.39g neohesperidin crude product obtained by step (2), the ethyl alcohol for being 50% with 900g volumetric concentration is water-soluble Liquid is heated to 75 DEG C of dissolutions, is cooled to 25 DEG C, for 24 hours, filtering, filtration cakes torrefaction obtains neohesperidin fine work 86.42g to crystallization.
The white crystalline powder shape of gained neohesperidin fine work, is detected, neohesperidin through high-performance liquid chromatography Purity be 99.5%, purification yield be 95.3%.
Embodiment 2
(1) it hydrolyzes: 200g aurantiin being dissolved in the potassium hydroxide aqueous solution that 2200mL mass concentration is 4%, 120 DEG C, under conditions of pressure 0.2MPa, 1h is hydrolyzed, is cooled to room temperature, with the sulfuric acid regulation solution pH value of mass concentration 20% to 5.5, It is cooled to room temperature, crystallization 6h, filters, it is dry, obtain 152.1g hydrolysate PN(purity 93.7%, yield 86.9%);
(2) it is condensed: 152.1g PN obtained by step (1) is dissolved in 1500g methanol (volumetric concentration 90%), be added 48.22g isovanillin and 10.6g histidine, at 80 DEG C, back flow reaction 6h after fully reacting, is placed reaction liquid at 2 DEG C, Crystallization 20h is freezed, is filtered, it is dry, obtain neohesperidin crude product 191.8g(purity 93.9%, yield 92.3%);
(3) it refines: by 191.8g neohesperidin crude product obtained by step (2), the isopropanol for being 60% with 1500g volumetric concentration Aqueous solution is heated to 80 DEG C of dissolutions, is cooled to 20 DEG C, crystallization 18h, filtering, filtration cakes torrefaction obtains neohesperidin fine work 171.1g.
The white crystalline powder shape of gained neohesperidin fine work, is detected, neohesperidin through high-performance liquid chromatography Purity be 99.3%, purification yield be 94.3%.
Embodiment 3
(1) it hydrolyzes: 100g aurantiin being dissolved in the sodium hydrate aqueous solution that 1200mL mass concentration is 3%, 130 DEG C, under conditions of pressure 0.3MPa, 0.5h is hydrolyzed, is cooled to room temperature, it is cold with the lemon acid for adjusting pH value of mass concentration 10% to 5 But to room temperature, crystallization 6h is filtered, dry, obtains 74.7g hydrolysate PN(purity 93.6%, yield 85.3%);
(2) it is condensed: 74.7g PN obtained by step (1) is dissolved in 740g isopropanol (volumetric concentration 90%), be added 23.87g isovanillin and 5.92g histidine, at 90 DEG C, back flow reaction 8h after fully reacting, is placed reaction liquid at 2 DEG C, Crystallization 20h is freezed, is filtered, it is dry, obtain neohesperidin crude product 92.3g(purity 93.6%, yield 90.1%);
(3) refine: by 92.3g neohesperidin crude product obtained by step (2), the methanol for being 55% with 923g volumetric concentration is water-soluble Liquid is heated to 70 DEG C of dissolutions, is cooled to 20 DEG C, crystallization 18h, filtering, filtration cakes torrefaction obtains neohesperidin fine work 82.49g.
The white crystalline powder shape of gained neohesperidin fine work, is detected, neohesperidin through high-performance liquid chromatography Purity be purity 99.5%, purification yield be 95%.

Claims (23)

1. a kind of using aurantiin as the method for Material synthesis neohesperidin, which comprises the following steps:
(1) it hydrolyzes: aurantiin is dissolved in aqueous alkali, heating, pressurized hydrolysis are cooled to room temperature, are adjusted with acid pH value, cold But crystallization filters, dry, obtains hydrolysate ----the β of phloroacetophenone -4 '-neohesperidoside;Alkali in the aqueous alkali For sodium hydroxide or potassium hydroxide, the mass concentration of aqueous alkali is 1~5%, and aqueous alkali and the liquid-solid ratio of aurantiin quality are 8~15;The temperature of the hydrolysis is 90~140 DEG C, and the pressure of hydrolysis is 0.01~0.40MPa, the time of hydrolysis is 0.4~ 1.5h;The acid for adjusting pH value is hydrochloric acid, sulfuric acid or citric acid, and sour mass concentration is 10~30%;
(2) it is condensed:-the β of phloroacetophenone -4 '-neohesperidoside obtained by step (1) is dissolved in water or organic solvent, be added Isovanillin and histidine, back flow reaction after fully reacting, freeze crystallization, filter, dry, obtain neohesperidin crude product;
(3) it refines: neohesperidin crude product obtained by step (2) being dissolved by heating with low carbon alcohol solution, cooling crystallization filters, filter Biscuit is dry, obtains neohesperidin fine work.
2. according to claim 1 using aurantiin as the method for Material synthesis neohesperidin, it is characterised in that: in step (1), PH value is adjusted to 2~7.
3. according to claim 1 or claim 2 using aurantiin as the method for Material synthesis neohesperidin, it is characterised in that: step (2) In, the organic solvent is methanol, in ethyl alcohol, isopropanol, n-butanol, acetone, ethyl acetate, dichloromethane or chloroform It is one or two kinds of;The dosage of the water or organic solvent is 5~30 times of-β of phloroacetophenone -4 '-neohesperidoside quality.
4. according to claim 1 or claim 2 using aurantiin as the method for Material synthesis neohesperidin, it is characterised in that: step (2) In, the additional amount of the isovanillin and histidine is so that-the β of phloroacetophenone -4 '-neohesperidoside, isovanillin and group The mass ratio of propylhomoserin is 1:0.3~0.4:0.05~0.10.
5. according to claim 3 using aurantiin as the method for Material synthesis neohesperidin, it is characterised in that: in step (2), The additional amount of the isovanillin and histidine is so that-the β of phloroacetophenone -4 '-neohesperidoside, isovanillin and histidine Mass ratio be 1:0.3~0.4:0.05~0.10.
6. according to claim 1 or claim 2 using aurantiin as the method for Material synthesis neohesperidin, it is characterised in that: step (2) In, the temperature of the back flow reaction is 60~95 DEG C, and the time of reaction is 2~10h.
7. according to claim 3 using aurantiin as the method for Material synthesis neohesperidin, it is characterised in that: in step (2), The temperature of the back flow reaction is 60~95 DEG C, and the time of reaction is 2~10h.
8. according to claim 4 using aurantiin as the method for Material synthesis neohesperidin, it is characterised in that: in step (2), The temperature of the back flow reaction is 60~95 DEG C, and the time of reaction is 2~10h.
9. according to claim 1 or claim 2 using aurantiin as the method for Material synthesis neohesperidin, it is characterised in that: step (2) In, the temperature of the freezing crystallization is 0~5 DEG C, time of crystallization is 12~for 24 hours.
10. according to claim 3 using aurantiin as the method for Material synthesis neohesperidin, it is characterised in that: step (2) In, the temperature of the freezing crystallization is 0~5 DEG C, time of crystallization is 12~for 24 hours.
11. according to claim 4 using aurantiin as the method for Material synthesis neohesperidin, it is characterised in that: step (2) In, the temperature of the freezing crystallization is 0~5 DEG C, time of crystallization is 12~for 24 hours.
12. according to claim 6 using aurantiin as the method for Material synthesis neohesperidin, it is characterised in that: step (2) In, the temperature of the freezing crystallization is 0~5 DEG C, time of crystallization is 12~for 24 hours.
13. according to claim 1 or claim 2 using aurantiin as the method for Material synthesis neohesperidin, it is characterised in that: step (3) in, the low-carbon alcohols are methanol, ethyl alcohol or isopropanol;The volumetric concentration of the low carbon alcohol solution is 30~90%, low-carbon The dosage of alcohol solution is 5~20 times of neohesperidin crude product quality;The temperature of the heating for dissolving is 60~80 DEG C.
14. according to claim 3 using aurantiin as the method for Material synthesis neohesperidin, it is characterised in that: step (3) In, the low-carbon alcohols are methanol, ethyl alcohol or isopropanol;The volumetric concentration of the low carbon alcohol solution is 30~90%, low-carbon alcohols water The dosage of solution is 5~20 times of neohesperidin crude product quality;The temperature of the heating for dissolving is 60~80 DEG C.
15. according to claim 4 using aurantiin as the method for Material synthesis neohesperidin, it is characterised in that: step (3) In, the low-carbon alcohols are methanol, ethyl alcohol or isopropanol;The volumetric concentration of the low carbon alcohol solution is 30~90%, low-carbon alcohols water The dosage of solution is 5~20 times of neohesperidin crude product quality;The temperature of the heating for dissolving is 60~80 DEG C.
16. according to claim 6 using aurantiin as the method for Material synthesis neohesperidin, it is characterised in that: step (3) In, the low-carbon alcohols are methanol, ethyl alcohol or isopropanol;The volumetric concentration of the low carbon alcohol solution is 30~90%, low-carbon alcohols water The dosage of solution is 5~20 times of neohesperidin crude product quality;The temperature of the heating for dissolving is 60~80 DEG C.
17. according to claim 9 using aurantiin as the method for Material synthesis neohesperidin, it is characterised in that: step (3) In, the low-carbon alcohols are methanol, ethyl alcohol or isopropanol;The volumetric concentration of the low carbon alcohol solution is 30~90%, low-carbon alcohols water The dosage of solution is 5~20 times of neohesperidin crude product quality;The temperature of the heating for dissolving is 60~80 DEG C.
18. according to claim 1 or claim 2 using aurantiin as the method for Material synthesis neohesperidin, it is characterised in that: step (1) in, the temperature of the cooling crystallization is room temperature, and the time of crystallization is 4~8h;In step (3), the temperature of the cooling crystallization It is 20~25 DEG C, time of crystallization is 12~for 24 hours.
19. according to claim 3 using aurantiin as the method for Material synthesis neohesperidin, it is characterised in that: step (1) In, the temperature of the cooling crystallization is room temperature, and the time of crystallization is 4~8h;In step (3), the temperature of the cooling crystallization is 20~25 DEG C, time of crystallization is 12~for 24 hours.
20. according to claim 4 using aurantiin as the method for Material synthesis neohesperidin, it is characterised in that: step (1) In, the temperature of the cooling crystallization is room temperature, and the time of crystallization is 4~8h;In step (3), the temperature of the cooling crystallization is 20~25 DEG C, time of crystallization is 12~for 24 hours.
21. according to claim 6 using aurantiin as the method for Material synthesis neohesperidin, it is characterised in that: step (1) In, the temperature of the cooling crystallization is room temperature, and the time of crystallization is 4~8h;In step (3), the temperature of the cooling crystallization is 20~25 DEG C, time of crystallization is 12~for 24 hours.
22. according to claim 9 using aurantiin as the method for Material synthesis neohesperidin, it is characterised in that: step (1) In, the temperature of the cooling crystallization is room temperature, and the time of crystallization is 4~8h;In step (3), the temperature of the cooling crystallization is 20~25 DEG C, time of crystallization is 12~for 24 hours.
23. 3 is described using aurantiin as the method for Material synthesis neohesperidin according to claim 1, it is characterised in that: step (1) In, the temperature of the cooling crystallization is room temperature, and the time of crystallization is 4~8h;In step (3), the temperature of the cooling crystallization is 20~25 DEG C, time of crystallization is 12~for 24 hours.
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Publication number Priority date Publication date Assignee Title
CN109503685A (en) * 2018-12-28 2019-03-22 成都欧康医药股份有限公司 A method of neohesperidin is synthesized with Fructus Citri grandis extract
CN114478657B (en) * 2022-02-18 2023-03-31 厦门大学 Synthesis method of neohesperidin

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US3375242A (en) * 1966-12-09 1968-03-26 Agriculture Usa Conversion of naringin to neohesperidin and neohesperidin dihydrochalcone
US3947405A (en) * 1974-01-03 1976-03-30 Givaudan Corporation Process for making neohesperidine dihydrochalcone
CN101863940A (en) * 2009-10-30 2010-10-20 成都华康生物工程有限公司 New aurantiamarin synthesizing technique
CN104744252A (en) * 2015-02-02 2015-07-01 天津理工大学 Method for catalyzing condensation reaction between aromatic aldehyde and malonic diester with bionic water-containing heterogeneous catalytic system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3375242A (en) * 1966-12-09 1968-03-26 Agriculture Usa Conversion of naringin to neohesperidin and neohesperidin dihydrochalcone
US3947405A (en) * 1974-01-03 1976-03-30 Givaudan Corporation Process for making neohesperidine dihydrochalcone
CN101863940A (en) * 2009-10-30 2010-10-20 成都华康生物工程有限公司 New aurantiamarin synthesizing technique
CN104744252A (en) * 2015-02-02 2015-07-01 天津理工大学 Method for catalyzing condensation reaction between aromatic aldehyde and malonic diester with bionic water-containing heterogeneous catalytic system

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