CN100569717C - The method for preparing sclareol by sclareol medicinal extract - Google Patents
The method for preparing sclareol by sclareol medicinal extract Download PDFInfo
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- CN100569717C CN100569717C CNB2008100326180A CN200810032618A CN100569717C CN 100569717 C CN100569717 C CN 100569717C CN B2008100326180 A CNB2008100326180 A CN B2008100326180A CN 200810032618 A CN200810032618 A CN 200810032618A CN 100569717 C CN100569717 C CN 100569717C
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- sclareol
- medicinal extract
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- saponification reaction
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Abstract
The present invention relates to a kind of method for preparing sclareol (Sclareol) by sclareol medicinal extract.The key step of said method is: sclareol medicinal extract is placed organic solvent, in 50 ℃～130 ℃ and have and carry out saponification reaction under the mineral alkali existence condition, the gained organic phase is 5.0～8.0 damping fluid washing and after crystallization under-20 ℃～0 ℃ condition through the pH value, target compound.Compare with the existing method for preparing sclareol by sclareol medicinal extract, the invention has the advantages that, preparation process succinctly reaches environmentally friendly (solvent for use is all recyclable in the preparation process recycles), and the purity height of products obtained therefrom (sclareol content is greater than 93wt%).
Description
Technical field
The present invention relates to the preparation method of a kind of sclareol (Sclareol), specifically, relate to a kind of method for preparing sclareol by sclareol medicinal extract.
Background technology
Sclareol (have another name called sclareol, belong to the diterpene alcohol compound) is a kind of natural plant pefume, is mainly used in daily essence allotment and preparation grane ambra (a kind of famous and precious spices).In addition, because the sclareol biologically active, thereby also have certain medical and agricultural value.
From sclareol medicinal extract (residuum of Salvia Sclare L. inflorescence after carrying oil, again through the sherwood oil leaching with the gains after concentrating, the content of its sclareol is that the enrichment sclareol is a class in numerous preparation sclareol methods among the 40wt%～50wt%).As US.Pat.No.3,060,172 report: at first adopt solvent lixiviate sclareol medicinal extract, and then extract the gained vat liquor with aqueous ethanolic solution, the extraction liquid, the drying that concentrate gained at last obtain containing the crystal product of sclareol.Similarly the method for enrichment sclareol (extracting from sclareol medicinal extract) also has with it: institute's reported method such as Bulgarian patent documentation BG 36938 and hungarian patent document HU 51322, french patent document FR 2741065 and Russ P document RU 2154092.
Take a broad view of and existing prepare the method for sclareol by sclareol medicinal extract, the deficiency of its existence is, the purity of complex operation step and product (sclareol) is not high (to be generally 80wt%～90wt%).Therefore, simplify the purity for preparing the operation steps of sclareol and improve sclareol by sclareol medicinal extract and just become the technical issues that need to address of the present invention.
Summary of the invention
The objective of the invention is to, provide a kind of step succinctly reach product purity high prepare the method for sclareol by sclareol medicinal extract.
The said method for preparing sclareol by sclareol medicinal extract of the present invention, its key step is: sclareol medicinal extract is placed organic solvent, carry out saponification reaction in 50 ℃～130 ℃ (preferred 70 ℃～120 ℃), the gained organic phase gets target compound through the damping fluid washing and after crystallization under-20 ℃～0 ℃ (preferred-10 ℃～0 ℃) condition;
Wherein: the sclareol content of said sclareol medicinal extract is more than or equal to 45wt%; The alkali that is used for said saponification reaction is mineral alkali.
The organic solvent that is used for the said saponification reaction of the present invention is that insoluble (or slightly soluble) is in water saturation alkane, as (but being not limited to) C
6～C
9Saturated alkane, its consumption are preferably 2～8 times of sclareol medicinal extract weight.
Recommend to use sodium hydroxide, potassium hydroxide or the calcium hydroxide alkali as the said saponification reaction of the present invention, the consumption of said alkali is 5%～20% of a sclareol medicinal extract weight.
The preferred damping fluid of the present invention is that the pH value is 5.0～8.0 damping fluid, and as (but being not limited to): the pH value is 5.0～8.0 phosphate buffered saline buffer or acetate buffer, and the weight ratio of damping fluid and organic phase is 1: (2～6).
Embodiment
The said sclareol medicinal extract of the present invention is by Salvia Sclare L. inflorescence (fragrance flavor and cosmetic .2002 after steam distillation extracts essential oil, 2:13-15, " natural perfume process technology ". China Light Industry Press, 2006, residuum 68-87), again through sherwood oil leaching with the gains after concentrating, the content of its sclareol is 40wt%～50wt%.
The said method for preparing sclareol of the present invention comprises the steps:
1, sclareol medicinal extract (content of sclareol is greater than 45wt%) and C
6～C
9Saturated alkane places reactor, adds sodium hydroxide, potassium hydroxide or calcium hydroxide again in this reactor, and its add-on is 5%～20% of a sclareol medicinal extract weight,, leaves standstill after 1～5 hour in 70 ℃～120 ℃ reactions, divides except that getting organic phase behind the water.
2, under 30 ℃～70 ℃ conditions, with the pH value is 5.0～8.0 phosphoric acid salt or the acetate buffer washing organic phase by step 1 gained, no longer change (the pH value is 7.5～11) to washing back water color, and organic phase presents and gets final product when as clear as crystal, and the washing purpose is to remove partly-hydrolysed product and the partial pigment that is present in the organic phase.With this organic phase in-10 ℃～0 ℃ crystallization, after filtration crystalline thing, this crystalline thing is target compound after drying.After tested in the target compound sclareol content greater than 93wt%.
Compare with the existing method for preparing sclareol by sclareol medicinal extract, the invention has the advantages that, preparation process succinctly reaches environmentally friendly (solvent for use is all recyclable in the preparation process recycles), and the purity height of products obtained therefrom (sclareol content is greater than 93wt%).
The present invention is further elaborated below by embodiment, and its purpose only is better to understand content of the present invention.Therefore, the cited case does not limit protection scope of the present invention.
Embodiment 1
(the about 45wt% of sclareol content) is dissolved in the 240ml normal heptane with the 40g clary sage concrete, treat to dissolve back adding concentration fully the aqueous sodium hydroxide solution 100ml that is 5wt% and carry out saponification, 90 ℃ of following saponification are after 2 hours, leave standstill, divide the phase of anhydrating, get upper strata alkane phase, adding 60ml temperature is 45 ℃ a acetate buffer, washs, leave standstill, divide the phase of anhydrating, wash three times, with the organic phase after washing in-3 ℃ of following freezing and crystallizings, 12 hours after-filtration, the sclareol crystal obtains 15.72g sclareol finished product after 50 ℃ of following vacuum-drying, sclareol content is 94.21wt%.
Embodiment 2
(the about 45wt% of sclareol content) is dissolved in the 180ml octane with the 40g clary sage concrete, treat to dissolve back adding concentration fully the potassium hydroxide aqueous solution 60ml that is 10wt% and carry out saponification, 95 ℃ of following saponification are after 1.5 hours, leave standstill, divide the phase of anhydrating, get upper strata alkane phase, adding 40ml temperature is that 55 ℃ phosphate buffered saline buffer washs, and leaves standstill, and divides the phase of anhydrating, twice of repetitive scrubbing, with the washing after alkane in-5 ℃ of following freezing and crystallizings, 12 hours after-filtration, the sclareol crystal is after 50 ℃ of following vacuum-drying, obtain 15.24g sclareol finished product, detecting sclareol content is 95.76wt%.
Claims (7)
1, a kind of method for preparing sclareol by sclareol medicinal extract, its key step is: sclareol medicinal extract is placed organic solvent, carry out saponification reaction in 50 ℃～130 ℃, the gained organic phase is through the damping fluid washing and after crystallization under-20 ℃～0 ℃ condition, target compound;
Wherein: the sclareol content of said sclareol medicinal extract is more than or equal to 45wt%; The alkali that is used for said saponification reaction is mineral alkali; Said organic solvent is insoluble or is slightly soluble in water saturation alkane; The pH value of said damping fluid is 5.0～8.0.
2, preparation method as claimed in claim 1 is characterized in that, wherein the temperature of saponification reaction is 70 ℃～120 ℃.
3, preparation method as claimed in claim 1 is characterized in that, wherein Tc is-10 ℃～0 ℃.
4, preparation method as claimed in claim 1 is characterized in that, wherein damping fluid washing organic phase is carried out under 30 ℃～70 ℃ conditions.
5, as any described preparation method in the claim 1～4, it is characterized in that wherein used organic solvent is C
6～C
9Saturated alkane, its consumption are 2～8 times of sclareol medicinal extract weight.
6, as any described preparation method in the claim 1～4, it is characterized in that the alkali that is used for said saponification reaction is sodium hydroxide, potassium hydroxide or calcium hydroxide, its consumption is 5%～20% of a sclareol medicinal extract weight.
As any described preparation method in the claim 1～4, it is characterized in that 7, wherein used damping fluid is that the pH value is 5.0～8.0 phosphate buffered saline buffer or acetate buffer, the weight ratio of said damping fluid and organic phase is 1: (2～6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100326180A CN100569717C (en) | 2008-01-10 | 2008-01-10 | The method for preparing sclareol by sclareol medicinal extract |
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| CNB2008100326180A CN100569717C (en) | 2008-01-10 | 2008-01-10 | The method for preparing sclareol by sclareol medicinal extract |
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| CN101229992A CN101229992A (en) | 2008-07-30 |
| CN100569717C true CN100569717C (en) | 2009-12-16 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101781276B (en) * | 2010-01-20 | 2011-09-28 | 华东理工大学 | Modified method for preparing sclareolide from sclareol |
| CN106854138B (en) * | 2016-12-29 | 2020-04-21 | 焦作市馨之源科技有限公司 | Method for separating sclareol from sclareol mother liquor |
| CN112778084A (en) * | 2021-01-29 | 2021-05-11 | 西安天美生物科技股份有限公司 | Extraction process of sclareol |
| CN113045410A (en) * | 2021-03-29 | 2021-06-29 | 华东理工大学 | Bicyclic norditerpenoid compound and synthetic gene and preparation method thereof |
| CN114988983A (en) * | 2022-06-09 | 2022-09-02 | 新疆师范大学 | Method for separating sclareol from sclareol extract |
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