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inquiryQuick Details ProName: METHYLPHOSPHONIC ACID CasNo: 993-13-5 Application: Pharmaceutical intermediates PackAge: 5g, 10g, 50g, 100g, 2kg Purity: >98% Transportation: by air or courier LimitNum: 0 Moisture Cont
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Min.Order:1 Gram
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inquiryConditions | Yield |
---|---|
With hydrogenchloride for 3h; Hydrolysis; Heating; | 96% |
With trifluorormethanesulfonic acid In water at 140℃; for 24h; Sealed tube; Schlenk technique; | 93% |
With hydrogenchloride | 88% |
Conditions | Yield |
---|---|
With sodium hydroxide; copper In water at 95℃; for 1.2h; | 15.3% |
chloromethylphosphonic acid
iminodiacetic acid
B
methylphosphonic acid
C
tri-sodium salt of N-phosphonomethylglycine
Conditions | Yield |
---|---|
With sodium hydroxide; copper In water at 95℃; for 17 - 65h; | A 3 - 6 %Spectr. B 15.3% C 2.7 - 4 %Spectr. |
With sodium hydroxide; copper(II) hydroxide In water at 95℃; for 20h; | A 90.3 %Spectr. B 4.5 %Spectr. C 4.6 %Spectr. |
Conditions | Yield |
---|---|
With sodium hydroxide; copper In water at 95℃; for 6h; | A 84.9 %Spectr. B 15.1% |
With sodium hydroxide; copper In water at 95℃; for 6h; | A 92.3 %Spectr. B 7.7% |
With sodium hydroxide; copper In water at 95℃; for 1.5h; | A 90.4 %Spectr. B 6.2% |
di-(4-methoxy-1-naphthyl) methylphosphate
A
methylphosphonic acid
B
4,4'-dimethoxy-1,1'-binaphthyl
Conditions | Yield |
---|---|
With dichloro-acetic acid In acetonitrile Quantum yield; Rate constant; Mechanism; Irradiation; | A 12% B 7% |
With dichloro-acetic acid In tetrahydrofuran for 1h; Quantum yield; Further Variations:; Reagents; Elimination; Irradiation; |
di-1-naphthyl methylphosphate
A
methylphosphonic acid
B
1,1'-bisnaphthalene
Conditions | Yield |
---|---|
With dichloro-acetic acid In acetonitrile Quantum yield; Rate constant; Mechanism; Irradiation; | A 10% B 7% |
With dichloro-acetic acid In tetrahydrofuran for 1h; Quantum yield; Further Variations:; Reagents; Elimination; Irradiation; |
Conditions | Yield |
---|---|
With water |
Conditions | Yield |
---|---|
With nitric acid |
Conditions | Yield |
---|---|
With hydrogenchloride |
Conditions | Yield |
---|---|
With sodium hypophosphite; ethanol Oxydation des Reaktionsprodukts mit KMnO4 in Wasser; |
Conditions | Yield |
---|---|
man schuettelt das Reaktionsprodukt mit verd. Natronlauge und verseift den Ester durch Alkohol Kalilauge oder rauchende Salpetersaeure. Entsteht der Diphenylester.; |
phosphorous acid dicyclohexyl ester-methyl ester
methyl iodide
A
methylphosphonic acid
B
cyclohexene
Conditions | Yield |
---|---|
at 200℃; |
ethanol
methylphosphonothioic acid
A
methylphosphonic acid
B
ethyl methylphosphonic acid
C
methylphosphinic acid
D
CH5O3PS
E
CH5O3PS
Conditions | Yield |
---|---|
With 3-chloro-benzenecarboperoxoic acid Product distribution; |
Conditions | Yield |
---|---|
With hydrogenchloride at 0.4 - 43.2℃; Kinetics; Mechanism; var. HCl and phosphate buffer concn.; |
Conditions | Yield |
---|---|
With water for 672h; Product distribution; other methylphosphonofluoridate; |
Conditions | Yield |
---|---|
aluminum oxide In solid at 99.9℃; under 1 Torr; Mechanism; decomposition of adsorbed molecule at various temperatures; |
Conditions | Yield |
---|---|
With water; N-butylamine at 25℃; Rate constant; Thermodynamic data; other reagents: various amines; E(activ.); other temperatures.; |
Bis (4-methoxyphenyl) methylphosphonate
A
methylphosphonic acid
B
4,4'-Dimethoxybiphenyl
Conditions | Yield |
---|---|
In methanol for 1h; Ambient temperature; Irradiation; Yield given. Yields of byproduct given; | |
In methanol for 1h; Quantum yield; Ambient temperature; Irradiation; |
Bis (4-methoxyphenyl) methylphosphonate
A
methylphosphonic acid
B
4,4'-Dimethoxybiphenyl
C
2,4',5-trimethoxy-1,1'-biphenyl
Conditions | Yield |
---|---|
In methanol for 1h; Irradiation; Yield given. Yields of byproduct given. Title compound not separated from byproducts; | |
In methanol for 1h; Product distribution; Quantum yield; Irradiation; photolysis of 4-methoxyphenyl aryl alkylphosphonates, solvent effect; |
bis(4-t-butylphenyl) methylphosphonate
A
methylphosphonic acid
B
4,4'-di-tert-butylbiphenyl
Conditions | Yield |
---|---|
In methanol for 1h; Ambient temperature; Irradiation; Yield given. Yields of byproduct given; | |
In methanol for 1h; Quantum yield; Ambient temperature; Irradiation; |
methylphosphinic acid
A
methylphosphine
B
methylphosphonic acid
C
methylidynephosphine
Conditions | Yield |
---|---|
at 820℃; |
bis(4-methylthiophenyl) methylphosphonate
A
methylphosphonic acid
B
4,4'-bis(methylsulfanyl)biphenyl
Conditions | Yield |
---|---|
In methanol for 1h; Ambient temperature; Irradiation; Yield given. Yields of byproduct given; | |
In methanol for 1h; Quantum yield; Ambient temperature; Irradiation; |
bis(4-ethoxyphenyl) methylphosphonate
A
methylphosphonic acid
B
4,4'-diethoxybiphenyl
Conditions | Yield |
---|---|
In methanol for 1h; Ambient temperature; Irradiation; Yield given. Yields of byproduct given; | |
In methanol for 1h; Quantum yield; Ambient temperature; Irradiation; |
A
methylphosphonic acid
B
4-chloro-(4'-methoxybiphenyl)
Conditions | Yield |
---|---|
In methanol for 1h; Irradiation; Yield given. Title compound not separated from byproducts; | |
In methanol for 1h; Product distribution; Quantum yield; Irradiation; photolysis of 4-methoxyphenyl aryl alkylphosphonates, solvent effect; |
4-cyanophenyl 4-methoxyphenyl methylphosphonate
A
methylphosphonic acid
B
4'-methoxybiphenyl-4-carbonitrile
C
4-hydroxy-3-(4-methoxyphenyl)benzonitrile
Conditions | Yield |
---|---|
In methanol for 1h; Irradiation; Yield given. Title compound not separated from byproducts; | |
In methanol for 1h; Product distribution; Quantum yield; Irradiation; photolysis of 4-methoxyphenyl aryl alkylphosphonates, solvent effect, quenching experiments with oxygen; |
A
methylphosphonic acid
B
3-cyano-4'-methoxybiphenyl
Conditions | Yield |
---|---|
In methanol for 1h; Irradiation; Yield given; | |
In methanol for 1h; Product distribution; Quantum yield; Irradiation; photolysis of 4-methoxyphenyl aryl alkylphosphonates, solvent effect; |
dimethyl methane phosphonate
A
methanol
B
methylphosphate
C
dimethylphosphoric acid
D
methylphosphonic acid
E
methyl hydrogen methylphosphonate
Conditions | Yield |
---|---|
With air; water; Pt/Al2O3 at -23.1℃; oxidative and hydrolytic reaction; var. Pt loading, other temp.; |
Conditions | Yield |
---|---|
aluminum oxide In solid at 99.9℃; under 1 Torr; Mechanism; decomposition of adsorbed molecule, at various temperatures; |
A
methylphosphonic acid
Conditions | Yield |
---|---|
With 1H-imidazole In butan-1-ol at 40℃; for 16h; Rate constant; |
Conditions | Yield |
---|---|
With trifluoro-[1,3,5]triazine In chloroform at 100℃; for 72h; | 100% |
With N,N-dimethyl-1-fluoro-2-methylpropenamine In 1,1,2,2-tetrachloroethane at 120℃; for 0.0833333h; | 100 % Spectr. |
methylphosphonic acid
tetra-n-butylphosphonium hydroxide
tetrabutylphosphonium hydrogenmethylphosphonate
Conditions | Yield |
---|---|
In water for 0.166667h; | 100% |
Conditions | Yield |
---|---|
With trifluoro-[1,3,5]triazine In chloroform; 1,2-dichloro-ethane at 100℃; for 23h; Inert atmosphere; | 100% |
Conditions | Yield |
---|---|
In water for 3h; Inert atmosphere; Heating; | 100% |
tert-butyldimethylsilanol
methylphosphonic acid
Conditions | Yield |
---|---|
In hexane for 2h; Heating; | 99% |
methylphosphonic acid
Conditions | Yield |
---|---|
In sulfolane; water at 60 - 160℃; for 42h; | 99% |
methylphosphonic acid
Conditions | Yield |
---|---|
In water molar ratio Rb:V:P=1:1:2; Teflon-lined bomb, 180°C, 5 d; | 98% |
In water molar ratio Rb:V:P=2:3:3; Teflon-lined bomb, 180°C, 5 d; | 21% |
Conditions | Yield |
---|---|
With NH4OH In water High Pressure; hydrothermal treatment (168°C, 48 h); filtration, washing (H2O), drying; elem. anal.; | 97% |
cis-dichlorobis(triphenylarsine)platinum(II)
methylphosphonic acid
Conditions | Yield |
---|---|
With Ag2O In dichloromethane react. under dry N2, addn. of methylphosphonic acid and an excess of Ag2O to a stirred soln. of cis-PtCl2(AsPh3)2 in CH2Cl2, refluxing for 4 h, cooling; filtration,, evapg. the filtrate to dryness under reduced pressure, oily residue, dissolving the oil in CH2Cl2, addn. of light petroleum, crystn. on standing, recrystn. from CH2Cl2-light petroleum, drying in vac., elem. anal.; | 96% |
Conditions | Yield |
---|---|
In water at 40 - 85℃; for 3.5h; | 95.7% |
dichloro(1,5-cyclooctadiene)platinum(ll)
methylphosphonic acid
1,2-bis-(diphenylphosphino)ethane
Conditions | Yield |
---|---|
With Ag2O In dichloromethane react. under dry N2, addn. of Ph2P(CH2)2PPh2, methylphosphonic acid (molar ratio = 1:1) and an excess of Ag2O to a stirred soln. of PtCl2(cycloocta-1,5-diene) in CH2Cl2, refluxing for 4 h, cooling; filtration,, evapg. the filtrate to dryness under reduced pressure, oily residue, dissolving the oil in CH2Cl2, addn. of light petroleum, crystn. on standing, recrystn. from CH2Cl2-light petroleum, drying in vac., elem. anal.; | 95% |
Conditions | Yield |
---|---|
Stage #1: methylphosphonic acid With 1H-imidazole; iodine In dichloromethane at 45 - 50℃; for 0.5h; Gareg-Samuelsson reaction; Stage #2: pentan-1-ol In dichloromethane at 45 - 50℃; for 0.833333h; Gareg-Samuelsson reaction; | 94% |
With p-TsOH-Celite at 20℃; | 87% |
dichloro(1,5-cyclooctadiene)platinum(ll)
methylphosphonic acid
1,3-bis-(diphenylphosphino)propane
Conditions | Yield |
---|---|
With CH2Cl2; Ag2O In dichloromethane react. under dry N2, addn. of Ph2P(CH2)3PPh2, methylphosphonic acid (molar ratio = 1:1) and an excess of Ag2O to a stirred soln. of PtCl2(cycloocta-1,5-diene) in CH2Cl2, refluxing for 4 h, cooling; filtration,, evapg. the filtrate to dryness under reduced pressure, oily residue, dissolving the oil in CH2Cl2, addn. of light petroleum, crystn. on standing, recrystn. from CH2Cl2-light petroleum, drying in vac., elem. anal.; | 94% |
methylphosphonic acid
2-naphthyl phosphate monosodium salt
Conditions | Yield |
---|---|
With hydrogen fluoride In water for 144h; Reflux; Inert atmosphere; | 94% |
methylphosphonic acid
cyclohexanol
Methylphosphonsaeure-dicyclohexylester
Conditions | Yield |
---|---|
With p-TsOH-Celite at 20℃; | 93% |
dichloro(1,5-cyclooctadiene)platinum(ll)
methylphosphonic acid
1,4-di(diphenylphosphino)-butane
{Pt(O2P(O)CH3)((C6H5)2P(CH2)4P(C6H5)2)}
Conditions | Yield |
---|---|
With Ag2O In dichloromethane react. under dry N2, addn. of Ph2P(CH2)4PPh2, methylphosphonic acid (molar ratio = 1:1) and an excess of Ag2O to a stirred soln. of PtCl2(cycloocta-1,5-diene) in CH2Cl2, refluxing for 4 h, cooling; filtration,, evapg. the filtrate to dryness under reduced pressure, oily residue, dissolving the oil in CH2Cl2, addn. of light petroleum, crystn. on standing, recrystn. from CH2Cl2-light petroleum, drying in vac., elem. anal.; | 93% |
Conditions | Yield |
---|---|
With HF In water dropwise addn. of 4.3 M HCl to stoich. mixt. of phosphonic acids, addn. of ZrOCl2 (in 1 M HCl), refluxing under N2 for 19 d, addn. of HF, stirring and refluxing for 7 d; cooling to room temp., EtOH addn., refrigeration (pptn.), collection (filtration, washing (75% EtOH, Me2CO, ether), drying in air; | 93% |
3,3-dimethyl-2-butanol
methylphosphonic acid
pinacolyl methylphosphonic acid
Conditions | Yield |
---|---|
With Celite; dicyclohexyl-carbodiimide at 50 - 60℃; for 1h; | 92% |
With phenylarsonic acid In toluene Heating; |
Conditions | Yield |
---|---|
With tetrachlorosilane at 0℃; | 92% |
With p-TsOH-Celite at 20℃; | 92% |
Stage #1: methylphosphonic acid With 1H-imidazole; iodine In dichloromethane at 45 - 50℃; for 0.5h; Gareg-Samuelsson reaction; Stage #2: isopropyl alcohol In dichloromethane at 45 - 50℃; Gareg-Samuelsson reaction; | 35% |
methylphosphonic acid
Conditions | Yield |
---|---|
In water molar ratio Tl:V:P=1:1:3; Teflon-lined bomb, 160°C, 5 d; crystn., filtration; | 92% |
Conditions | Yield |
---|---|
In sulfolane; water at 90 - 250℃; for 7h; Dean-Stark; | 92% |
Conditions | Yield |
---|---|
In water at 165℃; for 12h; Inert atmosphere; | 92% |
methylphosphonic acid
Conditions | Yield |
---|---|
With barium hydroxide octahydrate; water for 1h; | 91.5% |
Conditions | Yield |
---|---|
With p-TsOH-Celite at 20℃; | 91% |
With tetrachlorosilane at 0℃; | 90% |
dichloro(1,5-cyclooctadiene)platinum(ll)
methylphosphonic acid
diphenyl(methyl)phosphine
Conditions | Yield |
---|---|
With Ag2O; CH2Cl2 In dichloromethane react. under dry N2, addn. of methyldiphenylphosphine, methylphosphonic acid (molar ratio = 2:1) and an excess of Ag2O to a stirred soln. of PtCl2(cycloocta-1,5-diene) in CH2Cl2, refluxing for 4 h, cooling; filtration,, evapg. the filtrate to dryness under reduced pressure, oily residue, dissolving the oil in CH2Cl2, addn. of light petroleum, crystn. on standing, recrystn. from CH2Cl2-light petroleum, drying in vac., elem. anal.; | 91% |
methylphosphonic acid
p-(9-anthroyloxy)phenacyl bromide
bis methylphosphonate
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 80℃; for 0.5h; | 90% |
Conditions | Yield |
---|---|
With Celite; dicyclohexyl-carbodiimide at 50 - 60℃; for 0.75h; | 90% |
With phenylarsonic acid In toluene for 28h; Heating; | |
With phenylarsonic acid |
Conditions | Yield |
---|---|
With phenylarsonic acid In toluene for 28h; Heating; | 90% |
With phenylarsonic acid In toluene for 15h; Reflux; | 43.9% |
With phenylarsonic acid In toluene for 28h; Heating; | |
With phenylarsonic acid |
Conditions | Yield |
---|---|
With p-TsOH-Celite at 20℃; | 90% |
Stage #1: methylphosphonic acid With 1H-imidazole; iodine In dichloromethane at 45 - 50℃; for 0.5h; Gareg-Samuelsson reaction; Stage #2: propan-1-ol In dichloromethane at 45 - 50℃; for 0.75h; Gareg-Samuelsson reaction; | 90% |
With tetrachlorosilane at 0℃; | 80% |
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