There will be a HazMat fee per item when shipping a dangerous goods. The HazMat fee will be charged to your UPS/DHL/FedEx collect account or added to the invoice unless the package is shipped via Ground service. Ship by air in Excepted Quantity (each bottle), which is up to 1g/1mL for class 6.1 packing group I or II, and up to 25g/25ml for all other HazMat items.
Type | HazMat fee for 500 gram (Estimated) |
Excepted Quantity | USD 0.00 |
Limited Quantity | USD 15-60 |
Inaccessible (Haz class 6.1), Domestic | USD 80+ |
Inaccessible (Haz class 6.1), International | USD 150+ |
Accessible (Haz class 3, 4, 5 or 8), Domestic | USD 100+ |
Accessible (Haz class 3, 4, 5 or 8), International | USD 200+ |
Purity | Size | Price | VIP Price | USA Stock *0-1 Day | Global Stock *5-7 Days | Quantity | ||||||
{[ item.p_purity ]} | {[ item.pr_size ]} | 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 Inquiry - | Login | Inquiry |
Please Login or Create an Account to: See VIP prices and availability
CAS No. : | 145689-34-5 | MDL No. : | MFCD00061277 |
Formula : | C8H5F2N | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | IYRCHGRRMKOSHW-UHFFFAOYSA-N |
M.W : | 153.13 | Pubchem ID : | 518968 |
Synonyms : |
|
Signal Word: | Danger | Class: | 6.1 |
Precautionary Statements: | P261-P280-P301+P310-P311 | UN#: | 3276 |
Hazard Statements: | H301-H311-H331 | Packing Group: | Ⅲ |
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 |
---|---|---|
51% | With potassium hydroxide; In ethanol; water; for 1h; | Step 5: A stirred solution of 4-(5-difluoromethoxy-3-trifluoromethyl-pyrazol-1-yl)-benzaldehyde (40.5 mg, 0.13 mmol) and 2,3-difluorobenzylacetonitrile (20.3 mg, 0.13 mmol) in Ethanol (1 mL) was treated with 40% aqueous KOH (0.1 mL) at room temperature. The mixture was stirred for 1 hour. The resultant white precipitate was collected by filtration and washed with water to provide 5-difluoromethoxy-1-{4-[2-(2,3-difluoro-phenyl)-2-isocyano-vinyl]-phenyl}-3-trifluoromethyl-1H-pyrazole (30 mg, 51% yield) as a white solid: 1H-NMR (CDCl3) delta 6.39 (s, 1H), 6.62 (t, 1H, J=70.8 Hz), 7.14-7.28 (m, 2H), 7.36-7.42 (m, 1H), 7.65 (s, 1H), 7.80 (d, 2H, J=8.7), 8.02 (d,2H,J=8.7) ppm. ESMS calculated for C20H10F7N3O: 441.1; Found: 442.0 (M+H)+. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
52% | With potassium hydroxide; In ethanol; water; for 1h; | A stirred solution of 4-(3,5-bis-trifluoromethyl-pyrazol-1-yl)-benzaldehyde (0.31 g, 1 mmol) and 2,3-difluorobenzylacetonitrile (0.15 g, 1 mmol) in ethanol (0.85 mL) was treated with 40% aqueous KOH (0.23 mL) in Ethanol (0.46 mL) and stirred for 1 hour. The precipitate was collected by filtration and washed with water to give 3-[4-(3,5-bis-trifluoromethyl-pyrazol-1-yl)-phenyl]-2-(2,3-difluoro-phenyl)-acrylonitrile (0.24 g, 52% yield) as a white solid: 1H-NMR (CDCl3) delta 7.13 (s, 1H), 7.18-7.25 (m, 2H), 7.38-7.44 (m, 1H), 7.66 (d, 2H, J=8.7), 7.68 (s, 1H), 8.05 (d, 2H, J=8.7) ppm. ESMS calculated for C20H9F8O3: 443.0; Found: 444.0 (M+H)+. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With sodium hydride; In N,N-dimethyl-formamide; at 0 - 20℃; for 3.5h; | INTERMEDIATE 33 3 - Mlgamma-6-(23 -difluorophenyl)azepan-2-oneStep A: Ethyl 5-cvano-5-(2,3-difluorophenyl)pentanoate; Sodium hydride (60% dispersion in mineral oil; 2.9 g, 71.8 mmol) was slowly added to a solution of <strong>[145689-34-5](2,3-difluorophenyl)acetonitrile</strong> (10.0 g, 65.3 mmol) and ethyl 4- bromobutanoate (12.7 g, 65.3 mmol) in LambdazetaN-dimethylformamide (100 mL) at 0 0C. After 30 min, the reaction mixture was warmed to ambient temperature. After 3 h, water was added and the mixture was extracted with ethyl acetate (2x). The organic extracts were washed with saturated aqueous ammonium chloride, saturated brine, dried over magnesium sulfate, filtered and concentrated to give the title compound. MS 267.1 (M+l). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With potassium hydroxide; In ethanol; water; at 20℃; for 1h; | To a solution of the above 4~(2-Trifluoromethyl-benzoimidazol-1-yl)- benzaldehyde (0.155g, 0.53 mmol) and (2,3-Difluoro-phenyl)-acetonitrile (83 mg, 0.54 mmol) in EtOH (5 mL) was added a solution of KOH (0.2g) in H2O (0.5 mL). The mixture was then stirred at rt for 1 h, partitioned betweenEtOAc/H2O. The organic layer was dried and concentrated followed by silica gel chromatography (20% Hexane/EtOAc) to afford the product Compound 47 as a colorless oil. | |
With potassium hydroxide; In ethanol; water; at 20℃; for 1h; | A stirred mixture of 2-Trifluoromethyl-1 H-benzoimidazole (4.92g, 26.4 mmol), 4-fluorobenaldehyde (3.1 mL, 29.1 mmol), and K2CO3 (4.37g, 31.7 mmol) in DMF (50 mL) was heated to 150 0C for 16 h. After being cooled to room temperature, the reaction mixture was partitioned between H2O and EtOAC. After usual workup, the crude product was purified by silica gel chromatography (20% Hexane/EtOAc to 30% Hexane/EtOAc) to afford a yellow oil which was subjected to a second silica gel chromatography (DMC) to provide the aldehyde intermediate 4-(2-Trifluoromethyl-benzoimidazol-1-yl)- <n="140"/>benzaldehyde as a white solid (4.0 g).To a solution of the above 4-(2-Trifluoromethyl-benzoimidazol-1-yl)- benzaldehyde (0.155g, 0.53 mmol) and (2,3-Difluoro-phenyl)-acetonttrile (83 mg, 0.54 mmol) in EtOH (5 mL) was added a solution of KOH (0.2g) in H2O (0.5 mL). The mixture was then stirred at rt for 1h, partitioned between EtOAc/H2theta. The organic layer was dried and concentrated followed by silica gel chromatography (20% Hexane/EtOAc) to afford the product Compound 47 as a colorless oil.To a stirred solution of 4-(2-Trifluoromethyl-benzoimidazol-1-yl)-benzaldehyde (0.58 g, 2 mmol) in acetone (25 mL) was added Jone's reagent (1.0 mL, 2.0 M) at O0C. After stirring at room temperature for 2h, the mixture was partitioned between EtOAc and saturated NaHCO3 solution. After usual workup, the crude material was separated by silica gel chromatography (50% Hexane/EtOAc to EtOAc) to afford the intermediate acid 4-(2-Trifluoromethyl- benzoimidazol-1-yl)-benzoic acid as a while solid (490 mg).To a stirred solution of 4-(2-Trifluoromethyl-benzoirnidazol-1-yl)-benzoic acid (102 mg, 0.33 mmol) in dry CHCI3 (15 mL) was added oxalyl chloride (0.09 mL) followed by one drop of DMF at room temperature. After 1h, the reaction pot was concentrated and vacuum dried. Dry chloroform (15 mL) and pyridine (0.1 mL) was then added followed by the addition of 2,3-difluoroaniHine (36 mg, 0.28 mmol). The reaction was monitored by TLC, after completion, the mixture was partitioned between 1 N HCI and DCM. Organic layer was separated and dried (Na2SO4). Removal of solvents followed silica gel chromatography (20% hexane/EtOAc) afforded the product Compound 46 as a white solid. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With sodium hydride; In 1-methyl-pyrrolidin-2-one; diethyl ether; at 20℃; for 15h; | Step A: Preparation of 2-(2,3-Difiuorophenyl)-2- methylpropanenitrile; [0389] A mixture of NaH (5.7 g, 144 mmol) in 100 mL NMP stirred atO0C, was treated dropwise with a mixture of MeI (9.0 mL, 144 mmol) and 2- <strong>[145689-34-5](2,3-difluorophenyl)acetonitrile</strong> (10 g, 65 mmol) in 50 mL ether. The mixture was stirred at room temperature for 15 hours. The mixture was then carefully quenched with 20 mL H2O and extracted with ether (3 x 100 mL). The combined organic layers were washed with H2O (2 x 50 mL) and brine (20 mL), dried over anhydrous Na2SO4, concentrated in vacuo, and purified by column chromatography eluting with 10-20 % EtOAc/hexane to give 1 1.4 g of the title compound as a pale yellow oil. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
EXAMPLE 65; 2-[1-(2,3-Difluoro-phenyl)-ethyl]-4,5-dihydro-1H-imidazole; a) rac-2-(2,3-Difluoro-phenyl)-propionitrile; A solution of 1.586 g (16 mmol) diisopropylamine in 25 ml tetrahydrofuran was cooled with sodium chloride/ice to -10 C. A solution of 9 ml (14 mmol) 1.6 M butyl lithium in hexanes was added drop-wise. After stirring for 10 min the resulting LDA solution was cooled to -78 C. and a solution of 2.00 g (13 mmol) <strong>[145689-34-5]2,3-difluorophenyl-acetonitrile</strong> in 5 ml tetrahydrofuran slowly added. The reaction mixture was stirred at -78 C. for 40 min, then 2.22 g (16 mmol) methyl iodide were added and the cooling bath was removed after 5 min. The mixture was stirred for 2.5 h at room temperature, and then aqueous ammonium chloride solution was added. The mixture was extracted twice with ethyl acetate. The combined organic layers were dried over MgSO4, filtered and evaporated. The residue was purified using column chromatography (SiO2, heptanes/ethyl acetate 9:1) to yield 1.12 g of rac-2-(2,3-difluoro-phenyl)-propionitrile as a light yellow liquid; MS (EI): 167.1 (M+·), 152.1 (((M-CH3)+·), 100%). |
[ 518070-26-3 ]
2-(2-Fluoro-4-methylphenyl)acetonitrile
Similarity: 0.95
[ 243666-13-9 ]
2-(2,3,4-Trifluorophenyl)acetonitrile
Similarity: 0.93
[ 326-62-5 ]
2-(2-Fluorophenyl)acetonitrile
Similarity: 0.92
[ 654-01-3 ]
2-(2,6-Difluorophenyl)acetonitrile
Similarity: 0.90
[ 656-35-9 ]
2-(2,4-Difluorophenyl)acetonitrile
Similarity: 0.90
[ 518070-26-3 ]
2-(2-Fluoro-4-methylphenyl)acetonitrile
Similarity: 0.95
[ 243666-13-9 ]
2-(2,3,4-Trifluorophenyl)acetonitrile
Similarity: 0.93
[ 326-62-5 ]
2-(2-Fluorophenyl)acetonitrile
Similarity: 0.92
[ 654-01-3 ]
2-(2,6-Difluorophenyl)acetonitrile
Similarity: 0.90
[ 656-35-9 ]
2-(2,4-Difluorophenyl)acetonitrile
Similarity: 0.90
[ 518070-26-3 ]
2-(2-Fluoro-4-methylphenyl)acetonitrile
Similarity: 0.95
[ 243666-13-9 ]
2-(2,3,4-Trifluorophenyl)acetonitrile
Similarity: 0.93
[ 326-62-5 ]
2-(2-Fluorophenyl)acetonitrile
Similarity: 0.92
[ 654-01-3 ]
2-(2,6-Difluorophenyl)acetonitrile
Similarity: 0.90
[ 656-35-9 ]
2-(2,4-Difluorophenyl)acetonitrile
Similarity: 0.90