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inquiryAs a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem’s R&D center offer custom synthesis according to the contract research and development services for the fine chemicals, ph
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inquiryHenan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod
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inquiryhigh purity Storage:normal temperature Package:DRUM Application:mainly for medical use for R&Dpurpose use only Transportation:AIR,SEA Port:BEIJING,SHANGHAI,TIANJIN,SHENZHEN
Ansciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali
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inquiryPhosphonic acid,P.P'-1,4-phenylenebis-Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
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Cas:880-68-2
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inquiryhigh purity Application:Drug intermediates Materials intermediates and active molecules
1,4-phenylenebis(phosphonic acid)
Conditions | Yield |
---|---|
With methanol for 24h; Ambient temperature; | 100% |
tetraethyl 1,4-phenylbis(phosphonate)
1,4-phenylenebis(phosphonic acid)
Conditions | Yield |
---|---|
With trimethylsilyl bromide In dichloromethane at 20℃; for 4h; Inert atmosphere; | 91% |
Stage #1: tetraethyl 1,4-phenylbis(phosphonate) With trimethylsilyl bromide In acetonitrile at 20℃; for 3h; Stage #2: With water In diethyl ether at 20℃; for 0.5h; Further stages.; | |
With hydrogenchloride; water at 110℃; | Ca. 2 g |
diethyl ether
carbon dioxide
tetraethyl 1,4-phenylbis(phosphonate)
1,4-phenylenebis(phosphonic acid)
Conditions | Yield |
---|---|
With hydrogen bromide In ethanol; acetic acid | 89% |
With hydrogen bromide In ethanol; acetic acid | 89% |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 92 percent / NiCl2 / 0.5 h / 150 °C 2: 100 percent / MeOH / 24 h / Ambient temperature View Scheme | |
Multi-step reaction with 2 steps 1: nickel dichloride 2: trimethylsilyl bromide / dichloromethane / 4 h / 20 °C / Inert atmosphere View Scheme |
1,4-phenylenebis(phosphonic acid)
Conditions | Yield |
---|---|
In water refluxing ligand with 4 equiv. of Cu-salt (60°C, 24 h, pptn.); filtration, washing, drying (room temp.); | 89% |
Conditions | Yield |
---|---|
With HF In water High Pressure; V2O5 (0.87 mmol), 1,4-phenyldiphosphonic acid (0.41 mmol), amine (1.79 mmol), H2O (554.94 mmol), and HF (23.2 mmol), initail pH 1, sealed, heated at 150°C for 5 d h, final pH 1; filtered off, elem. anal.; | 85% |
Conditions | Yield |
---|---|
Stage #1: chromium(III) nitrate nonahydrate; 1,4-phenylenebis(phosphonic acid) In water Stage #2: acetone In water | 85% |
phosphoric acid
1,4-phenylenebis(phosphonic acid)
hydrogen fluoride
Conditions | Yield |
---|---|
In ethanol dissolving of (H3PO2)2C6H4 (2.10 mmol) and 85% H3PO4 (12.59 mmol) in abs. C2H5OH in vial, dissolving of ZrOCl2*8H2O (9.25 mmol) and 48 % HF (180mmol) in abs. C2H5OH in small bottle, shaking, addn. to vial, sealing, heating at 75°C for 6 days; pptn., washing with water, drying at 50°C, elem. anal.; | 82% |
1,4-diaza-bicyclo[2.2.2]octane
1,4-phenylenebis(phosphonic acid)
hydrogen fluoride
water
Conditions | Yield |
---|---|
In water High Pressure; V2O5 (0.86 mmol), 1,4-phenyldiphosphonic acid (0.43 mmol), amine (1.80 mmol), H2O (554.94 mmol), and HF (40.60 mmol), initail pH 1, sealed, heated at 180°C for 6 d h, final pH 1; filtered off, elem. anal.; | 80% |
1,4-phenylenebis(phosphonic acid)
Conditions | Yield |
---|---|
With HF In water dissolving of (H3PO2)2C6H4 (4.20 mmol) in 20 ml of distd. H2O in a plastic beaker, in a separate bottle dissolving of ZrOCl2*8H2O (2.87 mmol) in20 ml of distd. H2O, addn. of 48 % HF (47.7 mmol), heating at 60.degree .C for 7 days in an oil bath; collection of solid, washing with water, drying at 50°C, elem. anal.; | 79% |
Conditions | Yield |
---|---|
In water; isopropyl alcohol at 180℃; for 20h; | 75% |
1,4-phenylenebis(phosphonic acid)
2,3,5,6-tetrakis(2-pyridyl)pyrazine
water
copper(II) acetate monohydrate
Conditions | Yield |
---|---|
With H2SO4 In water a mixt. of MoO3 (1.320 mmol), Cu-contg. compd. (0.511 mmol), ligand (0.263 mmol), 1,4-diphosphonobenzene (0.659 mmol), H2O (556 mmol) and concd.H2SO4 was stirred briefly brfore heating to 150°C for 48.5 h; in itial pH 1.5; final pH 1.0; | 72% |
Conditions | Yield |
---|---|
In water High Pressure; loaded into autoclave, sealed, heated to 200°C in box furnace for3 d, cooled (5°C/h) to 25°C; washed with boiling water, rinsed with methanol, dried in air at room temp.; | 70.5% |
Conditions | Yield |
---|---|
In water 2 equiv. ZnCl2, 60°C, 7 d (pptn.); collection (filtration), washing, drying (room temp.); elem. anal.; | 70.3% |
1,4-phenylenebis(phosphonic acid)
[VO(1,4-phenylenediphosphonic acid(2-))]
Conditions | Yield |
---|---|
With HF In water High Pressure; soln. NH3VO3, arylphosphonic acid, H2O and HF (2.16:1.00:772:20.13) in poly(tetrafluoroethylene)-lined stainless steel container was heated to 200°C for 48 h (initial and final pH 1.0 and 1.5); elem. anal.; | 70% |
Conditions | Yield |
---|---|
With HF In water High Pressure; V2O5 (0.85 mmol), 1,4-phenyldiphosphonic acid (0.42 mmol), amine (1.79 mmol), H2O (544.94 mmol), and HF (11.6 mmol), initial pH 3, sealed, heated at 200°C for 72 h, final pH 3; filtered off, elem. anal.; | 70% |
Conditions | Yield |
---|---|
With HF In water High Pressure; V2O5 (0.89 mmol), 1,4-phenyldiphosphonic acid (0.40 mmol), amine (1.79 mmol), H2O (554.94 mmol), and HF (29.0 mmol), initail pH 2, sealed, heated at 200°C for 72 h, final pH 1; filtered off, elem. anal.; | 70% |
1,4-phenylenebis(phosphonic acid)
Conditions | Yield |
---|---|
In water at 200℃; | 67% |
Conditions | Yield |
---|---|
In water at 200℃; | 66% |
1,4-phenylenebis(phosphonic acid)
Conditions | Yield |
---|---|
With NaOH In water High Pressure; mixt. NiSO4*6H2O and 1,4-phenylenebisphosphonic acid in water was adjusted to pH 3-4 with 1 M NaOH and kept in Teflon-lined autoclave at 140°C for 54 h; react. mixt. was cooled slowly to room temp.; elem. anal.; | 65% |
Conditions | Yield |
---|---|
With HF In water High Pressure; V2O5 (0.88 mmol), 1,4-phenyldiphosphonic acid (0.42 mmol), amine (1.79 mmol), H2O (277.47 mmol), and HF (5.8 mmol), initail pH 1, sealed, heatedat 100°C for 7 d, final pH 1; filtered off, elem. anal.; | 65% |
Conditions | Yield |
---|---|
In water at 200℃; | 63% |
Conditions | Yield |
---|---|
With NaOH In water High Pressure; mixt. Co(en)3Cl3 and 1,4-phenylenebisphosphonic acid in water was adjusted to pH 3-4 with 1 M NaOH and kept in Teflon-lined autoclave at 140°C for 54 h; react. mixt. was cooled slowly to room temp.; elem. anal.; | 62% |
phosphoric acid
1,4-phenylenebis(phosphonic acid)
hydrogen fluoride
Conditions | Yield |
---|---|
In dimethyl sulfoxide dissolving of (H3PO2)2C6H4 (2.10 mmol) and 85% H3PO4 (12.58 mmol) in DMSO in vial, dissolving of ZrOCl2*8H2O (2.10 mmol) and 48 % HF (190 mmol) in DMSO in polyethylene bottle, addn. to vial, sealing, heating at 75°C for 6 days; pptn., washing with water, drying at 50°C, elem. anal.; | 52% |
1,4-phenylenebis(phosphonic acid)
Conditions | Yield |
---|---|
In water at 200℃; | 51% |
Conditions | Yield |
---|---|
With water In ethanol at 25℃; | 47% |
Conditions | Yield |
---|---|
In water at 200℃; | 42% |
Conditions | Yield |
---|---|
With NaN3; N2H4*H2O; HCl In water; N,N-dimethyl-formamide mixt. of NaVO3, NaN3, acid, H2O, DMF and Et3N was stirred at 70°Cuntil clear soln. formed; concd. aq. HCl, N2H4*H2O, concd. aq. HCl were added at 70°C to pH 7.5; reacted for 1 d; | 41% |
Conditions | Yield |
---|---|
In dimethyl sulfoxide at 25℃; | 6% |
Conditions | Yield |
---|---|
With trimethylamine-N-oxide; tetrabutyl ammonium fluoride; palladium diacetate In tetrahydrofuran; 1,4-dioxane at 100℃; for 24h; Heck-type reaction; | 42 % Spectr. |
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