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Commonly known as stonebreaker because of its strong roots, Phyllanthus Niruri is an herb that grows in tropical areas like the rain forests of the Amazon, Bahamas, China and Southern India.It can reach 30-60 centimeters in height and when in bloom
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Conditions | Yield |
---|---|
With sodium methylate In methanol at 20℃; for 1h; | 100% |
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With Amberlyst 15 resin In isopropyl alcohol for 4h; Heating; | 96% |
5-hydroxy-4'-methoxy-7-[(2-O-α-L-rhamnopyranosyl-β-D-glucopyranosyl)oxy]flavone
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With ethanol; sulfuric acid for 2h; Reflux; | 87% |
3,5-dihydroxyphenol
ethyl 4-methoxybenzoylacetate
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
for 0.0583333h; microwave irradiation; | 81% |
With dmap at 200℃; for 3h; Reagent/catalyst; Inert atmosphere; | 71% |
5,7-dihydroxy-2-(4-hydroxyphenyl)-4H-1-benzopyran-4-one
methyl iodide
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 18h; Inert atmosphere; regiospecific reaction; | 79% |
With potassium carbonate In N,N-dimethyl-formamide for 2h; |
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
Stage #1: 4,6-bis(methoxymethyl)-2-(4-methoxylbenzoyloxy)acetophenone With potassium hydroxide In pyridine at 50℃; for 0.333333h; Stage #2: With acetic acid In pyridine; water for 0.5h; Stage #3: With hydrogenchloride In methanol Reflux; | 75% |
2,4,6-trihydroxyacetophenone
4-methoxy-benzoyl chloride
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With potassium carbonate In acetone at 65℃; for 24h; Inert atmosphere; | 72% |
Stage #1: 2,4,6-trihydroxyacetophenone With potassium carbonate In acetone at 20℃; for 0.166667h; Inert atmosphere; Stage #2: 4-methoxy-benzoyl chloride In acetone at 60℃; for 24h; Inert atmosphere; | 71% |
Stage #1: 2,4,6-trihydroxyacetophenone With potassium carbonate In acetone at 20℃; for 0.166667h; Stage #2: 4-methoxy-benzoyl chloride In acetone for 24h; Heating; | 45% |
Stage #1: 2,4,6-trihydroxyacetophenone; 4-methoxy-benzoyl chloride With potassium carbonate In pyridine at 120℃; for 3h; Heating / reflux; Stage #2: With potassium hydroxide; water In methanol for 20h; Heating / reflux; Stage #3: With acetic acid In water pH=9; | |
Stage #1: 2,4,6-trihydroxyacetophenone; 4-methoxy-benzoyl chloride With pyridine; 1,8-diazabicyclo[5.4.0]undec-7-ene for 8h; Reflux; Stage #2: With sodium hydroxide In 1,4-dioxane; methanol |
C32H24O9
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With sodium methylate In ethanol; dichloromethane | 70% |
Conditions | Yield |
---|---|
With hydrogenchloride at 50 - 55℃; for 1.5h; | 70% |
7-benzyl-3'-phenyltetrazolyldiosmetin
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With ammonium formate; palladium on activated charcoal In methanol for 2.5h; Heating; | 68% |
4',5,7-trimethoxyflavone
A
5,7-dihydroxy-2-(4-hydroxyphenyl)-4H-1-benzopyran-4-one
B
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With N-butyl-N-methylimidazolium heptachlorodialuminate In dichloromethane at 40℃; for 4h; | A 54% B 16% |
dimethyl sulfate
rhoifolin
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
Stage #1: dimethyl sulfate; rhoifolin With sodium hydroxide In water at 10 - 25℃; for 6h; Stage #2: With sulfuric acid In water for 8h; Reflux; | 32.31% |
acacetin 7-O-β-D-galactopyranoside
A
D-Galactose
B
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With hydrogenchloride In ethanol for 2h; on steam bath; | A n/a B 18% |
2-chloro-1-(2,4,6-trihydroxyphenyl)ethan-1-one
4-methoxy-benzaldehyde
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
Stage #1: 2-chloro-1-(2,4,6-trihydroxyphenyl)ethan-1-one; 4-methoxy-benzaldehyde With potassium hydroxide In ethanol at 20℃; for 3h; Stage #2: With hydrogenchloride In ethanol; water at 55℃; for 1h; | 17.8% |
3,5-dihydroxyphenol
methyl 3-(4-methoxybenzoyl)acetate
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
at 250℃; |
5,7-dihydroxy-2-(4-methoxyphenyl)chroman-4-one
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With ethanol; iodine; sodium acetate |
5,7-diacetoxy-2-(4-methoxy-phenyl)-chroman-4-one
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With chloroform; bromine Irradiation.Erwaermen des Reaktionsprodukts mit wss.-aethanol. Natronlauge; |
2,4,6-trihydroxyacetophenone
p-Methoxybenzoic anhydride
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With sodium anisate Verseifen des Reaktionsprodukts mit alkoholisch-waessriger-Kalilauge; |
5,7-dihydroxy-2-(4-hydroxyphenyl)-4H-1-benzopyran-4-one
A
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
B
5-hydroxy-7-methoxy-2-(4-methoxyphenyl)-4H-chromen-4-one
Conditions | Yield |
---|---|
With O-methyl transferase from cell-free extract of Citrus mitis; <(14)CH3>-S-adenosyl-L-methionine; 2-hydroxyethanethiol In water; dimethyl sulfoxide at 35℃; for 0.5h; Product distribution; pH 7.5 buffer; |
1-(4-Methoxy-phenyl)-3-(2,4,6-trihydroxy-phenyl)-propane-1,3-dione
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With potassium carbonate; acetic acid 1.) reflux, 4 h, 2.) 5 min; Yield given; | |
With sulfuric acid In acetic acid at 95 - 100℃; Yield given; | |
With sulfuric acid; acetic acid at 100℃; for 1h; Yield given; |
C32H26O10
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With sodium acetate In acetic acid for 3h; Heating; |
A
6-deoxy-β-D-mannopyranose
B
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With hydrogenchloride at 100℃; for 3h; |
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With sulfuric acid at 100℃; for 2h; |
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With sulfuric acid |
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With hydrogenchloride |
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With hydrogenchloride |
3'-O-(1-phenyltetrazol-5-yl)diosmin
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 53 percent / HCOONH4 / Pd/C / methanol / 5 h / Heating 2: 70 percent / aq. HCl / 1.5 h / 50 - 55 °C View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 66 percent / KHCO3 / dimethylformamide / 2.5 h / 120 °C 2: 67 percent / KHCO3 / dimethylformamide / 1 h / 120 °C 3: 68 percent / HCOONH4 / Pd/C / methanol / 2.5 h / Heating View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 40 percent / KHCO3 / dimethylformamide / 2 h / 80 °C 2: 53 percent / HCOONH4 / Pd/C / methanol / 5 h / Heating 3: 70 percent / aq. HCl / 1.5 h / 50 - 55 °C View Scheme |
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
methyl iodide
5-hydroxy-7-methoxy-2-(4-methoxyphenyl)-4H-chromen-4-one
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 20℃; | 95% |
With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 18h; Inert atmosphere; regiospecific reaction; | 73% |
In pyridine at 20℃; for 2h; |
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
benzenesulfonyl chloride
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 20℃; for 0.5h; | 94% |
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With N-Bromosuccinimide In trifluoroacetic acid at 20℃; for 5h; | 94% |
methyl 6-bromohexanoate
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 70℃; for 6h; Inert atmosphere; | 89% |
Conditions | Yield |
---|---|
With dmap; triethylamine In N,N-dimethyl-formamide at 20℃; for 4.5h; Cooling with ice; | 87% |
With dmap; triethylamine In N,N-dimethyl-formamide |
methyl 8-bromooctanoate
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 70℃; for 6h; Inert atmosphere; | 87% |
Conditions | Yield |
---|---|
With potassium carbonate In acetone for 2h; Reflux; | 85% |
ethyl 7-bromoheptanoate
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 70℃; for 6h; Inert atmosphere; | 84% |
2,3,4,6-tetra-O-acetyl-D-glucopyranosyl bromide
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
(2R,3R,4S,5R,6S)-2-(acetoxymethyl)-6-((5-hydroxy-2-(4-methoxyphenyl)-4-oxo-4H-chromen-7-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate
Conditions | Yield |
---|---|
With tetrabutylammomium bromide; potassium carbonate In chloroform at 45℃; for 12h; Inert atmosphere; regioselective reaction; | 83% |
With tetrabutylammomium bromide; potassium carbonate In chloroform at 45℃; for 12h; | 83.11% |
1-(chloromethyl)-2,4-dimethoxybenzene
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 110 - 120℃; for 8h; Inert atmosphere; | 82.07% |
n-octadecyl p-toluenesulfonate
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With sodium carbonate In benzene at 20 - 130℃; for 8h; | 80.28% |
C14H19FO9
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
5-hydroxy-4'-methoxyflavone 7-O-β-D-galactopyranoside tetraacetate
Conditions | Yield |
---|---|
With boron trifluoride diethyl etherate In dichloromethane at -20 - -5℃; for 3.5h; Molecular sieve; Inert atmosphere; stereoselective reaction; | 78% |
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
2,3,4,6-tetra-O-acetyl-β-galactopyranosyl fluoride
5-hydroxy-4'-methoxyflavone 7-O-β-D-galactopyranoside tetraacetate
Conditions | Yield |
---|---|
With boron trifluoride diethyl etherate In dichloromethane at -20 - -5℃; Inert atmosphere; stereoselective reaction; | 78% |
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Dibenzyl N,N-diisopropylphosphoramidite
Conditions | Yield |
---|---|
Stage #1: 5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one; Dibenzyl N,N-diisopropylphosphoramidite With 1H-tetrazole In acetonitrile at 20℃; for 12h; Stage #2: With tert.-butylhydroperoxide In acetonitrile at 20℃; for 0.0833333h; | 76% |
1-bromo-2,3,4,6-tetra-O-acetyl-D-galactopyranose
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
5-hydroxy-4'-methoxyflavone 7-O-β-D-galactopyranoside tetraacetate
Conditions | Yield |
---|---|
With tetrabutylammomium bromide; potassium carbonate In chloroform at 45℃; for 12h; Inert atmosphere; regioselective reaction; | 75% |
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 18h; Inert atmosphere; regiospecific reaction; | 73% |
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
With tetrabutylammomium bromide; potassium carbonate In chloroform at 45℃; for 12h; Inert atmosphere; regioselective reaction; | 71% |
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
acacetin-7-O-β-D-hepta-O-acetyllactoside
Conditions | Yield |
---|---|
With tetrabutylammomium bromide; potassium carbonate In chloroform at 45℃; for 12h; Inert atmosphere; regioselective reaction; | 65% |
5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one
Conditions | Yield |
---|---|
Stage #1: N-(3-bromopropyl)propane-1-sulfonamide With magnesium In tetrahydrofuran Heating; Stage #2: 5,7-dihydroxy-2-(4'-methoxyphenyl)-4H-1-benzopyran-4-one With zirconocene dichloride In tetrahydrofuran at 30 - 40℃; for 2h; | 65% |
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