Purity | Size | Price | VIP Price | USA Stock *0-1 Day | Global Stock *5-7 Days | Quantity | |||||||
{[ item.p_purity ]} | {[ item.pr_size ]} | Login | Inquiry |
{[ getRatePrice(item.pr_usd, 1,1,item.pr_is_large_size_no_price) ]} {[ getRatePrice(item.pr_usd,item.pr_rate,1,item.pr_is_large_size_no_price) ]} |
{[ getRatePrice(item.pr_usd, 1,1,item.pr_is_large_size_no_price) ]} | Inquiry {[ getRatePrice(item.pr_usd,item.pr_rate,item.mem_rate,item.pr_is_large_size_no_price) ]} {[ getRatePrice(item.pr_usd,1,item.mem_rate,item.pr_is_large_size_no_price) ]} | {[ item.pr_usastock ]} | in stock Inquiry - | {[ item.pr_chinastock ]} | {[ item.pr_remark ]} in stock 1-2 weeks - Inquiry - | Login | Inquiry |
Please Login or Create an Account to: See VIP prices and availability
CAS No. : | 4773-96-0 | MDL No. : | |
Formula : | C19H18O11 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | AEDDIBAIWPIIBD-ZJKJAXBQSA-N |
M.W : | 422.34 | Pubchem ID : | 5281647 |
Synonyms : |
NSC 248870;Alpizarin;Aphloiol;Alpizarine;Chinonin;Hedysarid;Chinomin
|
Chemical Name : | 1,3,6,7-Tetrahydroxy-2-((2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)-9H-xanthen-9-one |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
![]() |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With hydrogenchloride; recorcinol; In water; for 6.0h;Reflux; | To a solution of <strong>[4773-96-0]mangiferin</strong> (300 mg, 0.710 mmol) in 3 N HCl(10 mL) was added resorcinol (117 mg, 1.06 mmol) at ambient temperature. The reactionmixture was refluxed for 6 h and then cooled to ambient temperature. The reaction mixturewas slowly quenched with saturated NaHCO3 solution and stirred for 30 min. Thebrown precipitate was collected by filtration, washed with H2O, and then concentrated invacuo. The residue was purified by flash column chromatography on silica gel (gradient50% EtOAc in n-hexane to only EtOAc) to afford 131 mg (71%) of the crude norathyriol.After recrystallization with ethanol, pure norathyriol was obtained as a yellowish solid,mp. >320C (decomp.). The NMR spectral data were identical with those reported8: 1HNMR (800 MHz, DMSO-d6) d 13.16 (s, 1 H), 10.76 (bs, 1H), 7.37 (s, 1H), 6.85 (s, 1H),6.31 (d, 1H, J D 2.1 Hz), 6.14 (d, 1H, J D 2.1 Hz); 13C NMR (800 MHz, DMSO-d6) d178.9, 164.7, 162.6, 157.3, 154.0, 150.9, 143.7, 111.8, 108.0, 102.6, 101.6, 97.7, 93.6;LR-MS (FABC) m/z 261 (MCHC); HR-MS (FABC) calcd for C13H9O6 (MCHC)261.0394; found: 261.0399. | |
With hydrogenchloride; recorcinol; In water; at 150℃; for 6.0h;Green chemistry; | Mangiferin in 3N HCl (10 mL, sigma-aldrich) solution(300 mg, 0.71 mmol, Xian Lyphar Biotech) with resorcinol(1.06 mmol, 1.5 equiv, TCI) was added and heated to reflux (150 C.) for 6 hours.After cooling the refluxed solution to room temperature (25 C.), saturated sodium bicarbonate (NaHCO 3) solution was slowly added to neutralize the mixed solution.The mixed solution was stirred for 30 minutes, then filtered and the solids washed with water.The dried solid was vacuum dried to give brown crude norathiol(crude norathyriol, yield: 71%, 131 mg) was obtained.Crude noratiriol was added to ethyl acetate (10 mL), heated, stirred for 30 minutes, cooled to room temperature (25 C.), and filtered. The solid was washed several times with ethyl acetate, and then the filtrate was concentrated to give noraritol. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
78% | With iodine; at 130℃; for 0.25h;Microwave irradiation; | Mangiferin (3, 0.2 g, 0.5 mmol) and iodine (0.009 g, 0.07 mmol) were mixed in acetic anhydride (7 mL) and the reaction was kept under MW irradiation (400 W), at 130 C, for 15 min. After cooling, a saturated solution of sodium thiosulfate was added to convert iodine (dark yellow) into iodide (yellow). The crude product was extracted with CH2Cl2 and the organic layer was extracted with a saturated solution of NaHCO3 twice, dried with anhydrous Na2SO4, and filtered. The solvent was evaporated under reduced pressure and the oil obtained was dissolved in ethyl acetate. A yellow solid was obtained with petroleum ether 60-80 C corresponding to1,3,6,7-tetra-O-acetyl-2-C-(2,3,4,6-tetra-O-acetyl-beta-D-glucopyranosyl)-9H-xanthen-9-one (7) (0.294 g, 0.39 mmol, 78 % yield); mp 143-147 C (petroleum ether 60-80 C). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Mangiferin is filtered-off, disintegrated and recrystallized from a mixture dioxane-water (1:1). There is obtained 0.1 kg of mangiferin. The yield of mangiferin is equal to 1% by weight of the starting stock. | ||
Mangiferin is filtered-off, dried, disintegrated and recrystallized from a mixture dioxane-water (1:2). There are obtained 0.1 kg of mangiferin. The yield of mangiferin is 1.0% by weight of the starting feedstock. | ||
Mangiferin is filtered-off, dried, disintegrated and recrystallized from a mixture dioxane-water (1:1) to give 0.1 kg of mangiferin. The yeld of mangiferin is equal to 1.0% by weight of the starting feedstock. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
81.7% | With sodium carbonate; In ethanol; water;Product distribution / selectivity; | Example 2 : Preparation of sodium <strong>[4773-96-0]mangiferin</strong>; Mangiferin 42.2(0. lmol) is suspend in the mixture of water 100ml and ethanol 900ml in reactor ,mixing round adequately. Sodium carbonate 5.30g(0.05mol) is dissolved in water , the concentration is 0.1 %( w/v) . The solution of sodium carbonate is added slowly into the <strong>[4773-96-0]mangiferin</strong> suspended solution while mixing round until the solution is clear , then the reaction solution is filtrated, appropriate quantity actone is added into the reaction solution, mixing round adequately . A lot of deposition is come into being , the reaction solution is filtrated to get the depositon, the solid substance is heated up not excess 60 C to dry .the yellow substance is sodium <strong>[4773-96-0]mangiferin</strong>. Its weight is 34.5g, the productivity is 81.7%. The purity of sodium <strong>[4773-96-0]mangiferin</strong> is 95% detected by HPLC.Compound identify:13CNMR(DMSO-d6) (deltappm): 161.7(C-I), 106.9(C-2), 146.6(C-3), 93.2(C-4), 155.9 ( C-4a), 100.6(C-4b), 102.7(C-5), 153.7(C-6), 177.5(C - 9), 73.5(C-I '), 70.5(C-2'), 79.0(C-3'), 70.3(C-4') , 81.2(C-5'), 61.1(C-6'). <n="9"/>13CNMR data of <strong>[4773-96-0]mangiferin</strong> in reference document [ ^ic^g , fj§^>beta . M Ht^P M^Mepsilon^MfrM^f°&fe. MpsipsiM, 1997; 32 (6): 473-475] :13CNMR(DMSO-d6) (deltappm): 161.6(C-I), 107.3(C-2), 163.6(C-3), 93.9(C-4), 156.1 ( C-4a), 101.2(C-4b), 102.5(C-5), 153.6(C-6), 143.7(C-7), 108.1(C-8), 118.7(C-8a), 150.7(C-8b), 179.0(C - 9), 73.0(C-I '), 70.5(C-2'), 78.8(C-3'), 70.3(C-4') , 81.3(C-5'), 61.4(C-6').According to the reference literature of <strong>[4773-96-0]mangiferin</strong> structure identify [ ^TJC ^H , w&m. MpsipsiU, mi-, 32 (6): 473-475 ] , the sodium <strong>[4773-96-0]mangiferin</strong> 13CNMR data reveal: The chemical shift of C-3 displace to high-frequency magnetic field markedly, The chemical shift of C-2, C-4, C-4a, C-4b and C-9 displace to high-frequency magnetic field too.According the sodium <strong>[4773-96-0]mangiferin</strong> 13CNMR data and the process of sodium <strong>[4773-96-0]mangiferin</strong> preparation, we deduce the sodium is linked to the position C-3 hydroxy of <strong>[4773-96-0]mangiferin</strong> . |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
78.1% | With sodium hydrogencarbonate; In ethanol; water;Product distribution / selectivity; | Example 3 : Preparation of sodium <strong>[4773-96-0]mangiferin</strong>; Mangiferin 42.2(0. lmol) is suspend in the mixture of water 900ml and ethanol 100ml in reactor, mixing round adequately. Sodium bicarbonate 9.24g(0.11mol) is dissolved in water ,the concentration is 5%( w/v) . The solution of sodium bicarbonate is added slowly into the <strong>[4773-96-0]mangiferin</strong> suspended solution while mixing round until the solution is clear , then the reaction solution is filtrated, appropriate quantity ethanol-ethyl acetate(l :1.5 v/v) is added into the reaction solution, mixing round adequately . A lot of deposition is come into being, the reaction solution is filtrated to get the depositon, the solid substance is heated up no excess 60 C to dry . The yellow substance is sodium <strong>[4773-96-0]mangiferin</strong>. Its weight is 32.96g, the productivity is 78.1%. The purity of sodium <strong>[4773-96-0]mangiferin</strong> is 92% detected by HPLC. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
90.4 - 91.2% | With calcium hydroxide; In dimethyl sulfoxide; glycerol;Product distribution / selectivity; | Example 9: Preparation of <strong>[4773-96-0]mangiferin</strong> calcium <strong>[4773-96-0]mangiferin</strong> 4.2g(0.01mol) is dissolved into 50ml DMSO, calcium hydroxide 0.37g(0.005mol) is dissolved in 80g glycerol, calcium hydroxide solution is added slowly into <strong>[4773-96-0]mangiferin</strong> solution while mixing round, mixing round until it reacte completely. Appropriate quantity ethanol is added into the reaction solution, mixing <n="12"/>round adequately. A lot of deposition is come into being in solution. The reaction solution is filtrated to get the depositon . This deposition is heated up no excess 60 C to dry. The yellow green solid substance is <strong>[4773-96-0]mangiferin</strong> calcium. Its weight is 3.8g, the productivity is 90.4%. Example 10: Preparation of <strong>[4773-96-0]mangiferin</strong> calcium; <strong>[4773-96-0]mangiferin</strong> 4.2g(0.01mol)is dissolved into 80ml DMSO, calcium hydroxide 1.48g(0.02mol) is dissolved in 20Og glycerol, calcium hydroxide solution is added slowly into <strong>[4773-96-0]mangiferin</strong> solution while mixing round , mixing round until it reacte completely. Appropriate quantity ethanol is added into the reaction solution, mixing round adequately . A lot of deposition is come into being in solution. The reaction solution is filtrated to get the depositon. This deposition is heated up no excess 60 C to dry. The yellow green solid substance is <strong>[4773-96-0]mangiferin</strong> calcium. Its weight is 3.83g, the productivity is 91.2%. |
82.1% | With potassium hydrogencarbonate; In ethanol; water;Product distribution / selectivity; | Example 5 : Preparation of potassium <strong>[4773-96-0]mangiferin</strong>; Mangiferin 42.2(0. lmol) is suspended in the mixture of water 400ml and ethanol 1600ml in reactor ,mixing round adequately. Potassium bicarbonate 10.0g(0. lmol) is dissolved in water , the concentration is 0.1%( w/v) . The solution of potassium bicarbonate is added slowly into the <strong>[4773-96-0]mangiferin</strong> suspended solution while mixing round until the solution is clear , then the reaction solution is filtrated, appropriate quantity ethanol-dichloroform (7:1 v/v) is added into the reaction solution, mixing round adequately . A lot of deposition is come into being , the reaction solution is filtrated to get the depositon, the solid substance is heated up no excess 60 C to dry .The yellow substance is potassium <strong>[4773-96-0]mangiferin</strong> . Its weight is 34.65g, the productivity is 82.1%. The purity of potassium <strong>[4773-96-0]mangiferin</strong> is 94% detected by HPLC. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In methanol; water;Product distribution / selectivity; | Example 4: Preparation of <strong>[4773-96-0]mangiferin</strong> monopotassiumMangiferin 42.2(0. lmol) is suspended in the mixture of water 200ml and methanol 1800ml in reactor, mixing round adequately. Potassium carbonate 6.9g(0.05mol) is dissolved in water ,the concentration is 0.2%( w/v ) . The solution of potassium carbonate is added slowly into the <strong>[4773-96-0]mangiferin</strong> suspended solution while mixing round until the solution is clear, then the reaction solution is filtrated, appropriate quantity ethanol- chloroform (4:1 v/v) is added into the reaction solution, mixing round adequately . A lot of deposition is come into being, the reaction solution is filtrated to get the depositon, the solid substance is heated up no excess <n="12"/>60 C to dry. The yellow substance is <strong>[4773-96-0]mangiferin</strong> monopotassium. Its weight is 3 Ig, the productivity is 73.4%. The purity of <strong>[4773-96-0]mangiferin</strong> monopotassium is 98.6% detected by HPLC. |
感谢您访问我们的网站,您可能还对以下资源感兴趣:
成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天