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Chemical Structure| 128495-46-5 Chemical Structure| 128495-46-5

Structure of 4-Fluoro-3-methoxybenzaldehyde
CAS No.: 128495-46-5

Chemical Structure| 128495-46-5

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Product Details of [ 128495-46-5 ]

CAS No. :128495-46-5
Formula : C8H7FO2
M.W : 154.14
SMILES Code : O=CC1=CC=C(F)C(OC)=C1
MDL No. :MFCD00143320
InChI Key :NALVGTOMKSKFFV-UHFFFAOYSA-N
Pubchem ID :2737358

Safety of [ 128495-46-5 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H315-H319-H335
Precautionary Statements:P261-P305+P351+P338

Computational Chemistry of [ 128495-46-5 ] Show Less

Physicochemical Properties

Num. heavy atoms 11
Num. arom. heavy atoms 6
Fraction Csp3 0.12
Num. rotatable bonds 2
Num. H-bond acceptors 3.0
Num. H-bond donors 0.0
Molar Refractivity 38.28
TPSA ?

Topological Polar Surface Area: Calculated from
Ertl P. et al. 2000 J. Med. Chem.

26.3 Ų

Lipophilicity

Log Po/w (iLOGP)?

iLOGP: in-house physics-based method implemented from
Daina A et al. 2014 J. Chem. Inf. Model.

1.68
Log Po/w (XLOGP3)?

XLOGP3: Atomistic and knowledge-based method calculated by
XLOGP program, version 3.2.2, courtesy of CCBG, Shanghai Institute of Organic Chemistry

1.67
Log Po/w (WLOGP)?

WLOGP: Atomistic method implemented from
Wildman SA and Crippen GM. 1999 J. Chem. Inf. Model.

2.07
Log Po/w (MLOGP)?

MLOGP: Topological method implemented from
Moriguchi I. et al. 1992 Chem. Pharm. Bull.
Moriguchi I. et al. 1994 Chem. Pharm. Bull.
Lipinski PA. et al. 2001 Adv. Drug. Deliv. Rev.

1.55
Log Po/w (SILICOS-IT)?

SILICOS-IT: Hybrid fragmental/topological method calculated by
FILTER-IT program, version 1.0.2, courtesy of SILICOS-IT, http://www.silicos-it.com

2.39
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

1.87

Water Solubility

Log S (ESOL):?

ESOL: Topological method implemented from
Delaney JS. 2004 J. Chem. Inf. Model.

-2.12
Solubility 1.17 mg/ml ; 0.0076 mol/l
Class?

Solubility class: Log S scale
Insoluble < -10 < Poorly < -6 < Moderately < -4 < Soluble < -2 Very < 0 < Highly

Soluble
Log S (Ali)?

Ali: Topological method implemented from
Ali J. et al. 2012 J. Chem. Inf. Model.

-1.84
Solubility 2.25 mg/ml ; 0.0146 mol/l
Class?

Solubility class: Log S scale
Insoluble < -10 < Poorly < -6 < Moderately < -4 < Soluble < -2 Very < 0 < Highly

Very soluble
Log S (SILICOS-IT)?

SILICOS-IT: Fragmental method calculated by
FILTER-IT program, version 1.0.2, courtesy of SILICOS-IT, http://www.silicos-it.com

-2.74
Solubility 0.282 mg/ml ; 0.00183 mol/l
Class?

Solubility class: Log S scale
Insoluble < -10 < Poorly < -6 < Moderately < -4 < Soluble < -2 Very < 0 < Highly

Soluble

Pharmacokinetics

GI absorption?

Gatrointestinal absorption: according to the white of the BOILED-Egg

High
BBB permeant?

BBB permeation: according to the yolk of the BOILED-Egg

Yes
P-gp substrate?

P-glycoprotein substrate: SVM model built on 1033 molecules (training set)
and tested on 415 molecules (test set)
10-fold CV: ACC=0.72 / AUC=0.77
External: ACC=0.88 / AUC=0.94

No
CYP1A2 inhibitor?

Cytochrome P450 1A2 inhibitor: SVM model built on 9145 molecules (training set)
and tested on 3000 molecules (test set)
10-fold CV: ACC=0.83 / AUC=0.90
External: ACC=0.84 / AUC=0.91

Yes
CYP2C19 inhibitor?

Cytochrome P450 2C19 inhibitor: SVM model built on 9272 molecules (training set)
and tested on 3000 molecules (test set)
10-fold CV: ACC=0.80 / AUC=0.86
External: ACC=0.80 / AUC=0.87

No
CYP2C9 inhibitor?

Cytochrome P450 2C9 inhibitor: SVM model built on 5940 molecules (training set)
and tested on 2075 molecules (test set)
10-fold CV: ACC=0.78 / AUC=0.85
External: ACC=0.71 / AUC=0.81

No
CYP2D6 inhibitor?

Cytochrome P450 2D6 inhibitor: SVM model built on 3664 molecules (training set)
and tested on 1068 molecules (test set)
10-fold CV: ACC=0.79 / AUC=0.85
External: ACC=0.81 / AUC=0.87

No
CYP3A4 inhibitor?

Cytochrome P450 3A4 inhibitor: SVM model built on 7518 molecules (training set)
and tested on 2579 molecules (test set)
10-fold CV: ACC=0.77 / AUC=0.85
External: ACC=0.78 / AUC=0.86

No
Log Kp (skin permeation)?

Skin permeation: QSPR model implemented from
Potts RO and Guy RH. 1992 Pharm. Res.

-6.05 cm/s

Druglikeness

Lipinski?

Lipinski (Pfizer) filter: implemented from
Lipinski CA. et al. 2001 Adv. Drug Deliv. Rev.
MW ≤ 500
MLOGP ≤ 4.15
N or O ≤ 10
NH or OH ≤ 5

0.0
Ghose?

Ghose filter: implemented from
Ghose AK. et al. 1999 J. Comb. Chem.
160 ≤ MW ≤ 480
-0.4 ≤ WLOGP ≤ 5.6
40 ≤ MR ≤ 130
20 ≤ atoms ≤ 70

None
Veber?

Veber (GSK) filter: implemented from
Veber DF. et al. 2002 J. Med. Chem.
Rotatable bonds ≤ 10
TPSA ≤ 140

0.0
Egan?

Egan (Pharmacia) filter: implemented from
Egan WJ. et al. 2000 J. Med. Chem.
WLOGP ≤ 5.88
TPSA ≤ 131.6

0.0
Muegge?

Muegge (Bayer) filter: implemented from
Muegge I. et al. 2001 J. Med. Chem.
200 ≤ MW ≤ 600
-2 ≤ XLOGP ≤ 5
TPSA ≤ 150
Num. rings ≤ 7
Num. carbon > 4
Num. heteroatoms > 1
Num. rotatable bonds ≤ 15
H-bond acc. ≤ 10
H-bond don. ≤ 5

1.0
Bioavailability Score?

Abbott Bioavailability Score: Probability of F > 10% in rat
implemented from
Martin YC. 2005 J. Med. Chem.

0.55

Medicinal Chemistry

PAINS?

Pan Assay Interference Structures: implemented from
Baell JB. & Holloway GA. 2010 J. Med. Chem.

0.0 alert
Brenk?

Structural Alert: implemented from
Brenk R. et al. 2008 ChemMedChem

1.0 alert: heavy_metal
Leadlikeness?

Leadlikeness: implemented from
Teague SJ. 1999 Angew. Chem. Int. Ed.
250 ≤ MW ≤ 350
XLOGP ≤ 3.5
Num. rotatable bonds ≤ 7

No; 1 violation:MW<1.0
Synthetic accessibility?

Synthetic accessibility score: from 1 (very easy) to 10 (very difficult)
based on 1024 fragmental contributions (FP2) modulated by size and complexity penaties,
trained on 12'782'590 molecules and tested on 40 external molecules (r2 = 0.94)

1.21

Application In Synthesis of [ 128495-46-5 ]

* 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.

  • Downstream synthetic route of [ 128495-46-5 ]

[ 128495-46-5 ] Synthesis Path-Downstream   1~7

  • 1
  • [ 128495-45-4 ]
  • [ 128495-46-5 ]
YieldReaction ConditionsOperation in experiment
85% With manganese(IV) oxide; In dichloromethane; for 16h;Heating / reflux; (4-FLUORO-3-METHOXYPHENYL) METHANOL (5. 00G, 0. 03mol) and manganese dioxide (33.4g, 0. 38MOL) were stirred in DICHLOROMETHANE (100ml) under an atmosphere of nitrogen, at gentle reflux for 16 hours. The cooled reaction mixture was then filtered through arbacel and concentrated in vacuo to give the title compound as a white solid (4.18g, 0. 027MOL, 85%). 1H NMR (CDCI3, 400MHZ) 8 : 3.96 (s, 3H), 7.23 (d, 1H), 7.43 (m, 1 H), 7.50 (d, 1 H) 9.91 (s, 1H). Mpt: 61-63C. Analysis found C, 62.18 ; H, 4.54%. C8H7FO2 requires C, 62.34 ; H, 4.58%.
85% With manganese(IV) oxide; In dichloromethane; for 16h;Heating / reflux; (4-Fluoro-3-methoxyphenyl) methanol (5.0Og, 0.03mol) and manganese dioxide (33.4g, 0.38mol) were stirred in dichloromethane (100ml) under an atmosphere of nitrogen, at gentle reflux for 16 hours. The • cooled reaction mixture was then filtered through arbacel and concentrated in vacuo to give the title compound as a white solid (4.18g, 0.027mol, 85%). 1H NMR (CDCI3, 400MHz) δ: 3.96 (s, 3H), 7.23 (d, 1 H), 7.43 (m, 1 H), 7.50 (d, 1 H) 9.91 (s, 1 H). Mpt: 61-630C. Analysis found C, 62.18; H, 4.54%. C8H7FO2 requires C, 62.34; H, 4.58%.
81% With chromium trioxide pyridine; In dichloromethane; at 20℃; for 0.5h; To a solution of (4-fluoro-3-methoxyphenyl) methanol (1.56 g, 10 mmol) in dichloromethane (40 mL) was added chromium trioxide pyridine (4.31 g, 20 mmol). The mixture was stirred at room temperature for 30 min and filtered. The filtrate was poured onto a short silica gel column, and eluted with dichloromethane. The resulting solution was concentrated under vacuum to afford the title compound (1.25 g, 81 %). 1H NMR (CDCl3): δ 9.92 (1H, s), 7.52 (1H, dd, J = 2.0 Hz, 8.4 Hz), 7.47-7.43 (1H, m), 7.26-7.22 (1H, m), 3.96 (3H, s).
81% With pyridine; chromium(VI) oxide; In dichloromethane; at 20℃; for 0.5h; To a solution of (4-fluoro-3-methoxyphenyl) methanol (1.56 g, 10 mmol) in dichloromethane (40 mL) was added chromium trioxide pyridine (4.31 g, 20 mmol). The mixture was stirred at room temperature for 30 min and filtered. The filtrate was poured onto a short silica gel column, and eluted with dichloromethane. The resulting solution was concentrated under vacuum to afford the title compound (1.25 g, 81 %). 1H NMR (CDCl3): δ9.92 (1H, s), 7.52 (1H, dd, J=2.0 Hz, 8.4 Hz), 7.47-7.43 (1H, m), 7.26-7.22 (1H, m), 3.96 (3H, s).

  • 2
  • [ 13623-11-5 ]
  • [ 128495-46-5 ]
  • 2-[2-hydroxy-2-(4-fluoro-3-methoxyphenyl)ethyl]-4,5-dimethyl-1,3-thiazole [ No CAS ]
  • 3
  • [ 128495-46-5 ]
  • [ 128495-45-4 ]
YieldReaction ConditionsOperation in experiment
With sodium hydroxide; sodium tetrahydroborate; In methanol; water; for 1h; Preparation 44; To a solution of 4-fluoro-3-methoxybenzaldehyde (5 g) in methanol (25 ml) was added dropwise sodium borohydride (368 mg) in 0.1N sodium hydroxide aqueous solution (5 ml) in water bath and the whole was stirred for 1 hour. After the mixture was evaporated under reduced pressure, ethyl acetate and water were added thereto. The organic layer was separated and the water layer was further extracted with ethyl acetate. The combined organic layer was dried over magnesium sulfate and concentrated in vacuo to give 4-fluoro-3-methoxybenzyl-alcohol (5.22 g) as an oil. IR (Neat): 1610, 1516, 1462, 1417, 1315, 1277, 1149, 1115, 1032 cm-1 NMR (CDCl3, δ): 1.75 (1H, br s), 3.90 (3H, s), 4.64 (2H, s), 6.70-7.20 (3H, m)
  • 4
  • [ 288-32-4 ]
  • [ 128495-46-5 ]
  • [ 870837-70-0 ]
YieldReaction ConditionsOperation in experiment
With potassium carbonate; In N,N-dimethyl-formamide; at 80℃; 1H-imidazole (42.0 mg) and potassium carbonate (180 mg) were added to a solution of 4-fluoro-3-methoxybenzaldehyde (100 mg) in DMF (2.0 mL), and the reaction solution was stirred at 80C overnight. Water and ethyl acetate were added to the reaction solution, and the organic layer was separated. The resulting organic layer was washed with brine, dried over anhydrous magnesium sulfate and then concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography (elution solvent: heptane-ethyl acetate system -> ethyl acetate-methanol system) to obtain 36.2 mg of the title compound. The property values of the compound are as follows. 1H-NMR (CDCl3) delta (ppm): 3.98 (s, 3H), 7.21 (s, 1H), 7.30 (s, 1H), 7.48 (d, J = 7.6 Hz, 1H), 7.56-7.60 (m, 2H), 7.92 (s, 1H), 10.0 (s, 1H).
With potassium carbonate; In N,N-dimethyl-formamide; at 130℃; l-(4-Ethynyl-2-methoxyphenyl)-l//-imidazole.A mixture of 4-fiuoro-3-methoxybenzaldehyde (1.0 g, 6.5 mmol) in 20 mL of DMF was treated with 4-methylimidazole (1.0 g, 15 mmol) and warmed to 130 C. Stirred overnight. Diluted with EtOAc, washed with sat'd NaHCO3, dried (Na2SO4), concentrated. Dissolved in 20 mL of MeOH, treated with K2CO3 (2.0 g, 14 mmol) and dimethyl (l-diazo-2-oxopropyl)phosphonate (1.5 g, 7.8 mmol) and stirred overnight. Diluted with DCM and washed with water. Dried (Na2SO4), cone. Chromatography on silica (0-20% MeOH/DCM) gave the desired alkyne:1H NMR (600 MHz, CDCl3) delta7.79 (s, 1 H), 7.18 (t, J= 1.2 Hz, 1 H), 7.16 (d, J= 1.8 Hz, 1 H), 7.15 (m, 2 H), 7.13 (d, J= 1.5 Hz, 1 H).
  • 5
  • [ 128495-46-5 ]
  • [ 117902-15-5 ]
YieldReaction ConditionsOperation in experiment
35% Intermediate 104-fluoro-3-(methyloxy)phenolTo a solution of 4-fluoro-3-(methyloxy)benzaldehide (1.54 g, 10 mmol) in DCM (30 mL) metachloroperbenzoic acid (2.59 g, 15 mmol) was added portionwise and the reaction mixture was stirred for 3 hours at room temperature. A second portion of m-CPBA (2.59 g, 15 mmol) wasadded and the reaction mixture was stirred for further 18 hrs. The mixture was diluted with DCM (100 mL), washed with an aqueous saturated solution of Na25203 (2x100 mL) and then with an aqueous saturated solution of NaHCO3(50 mL), dried over Na2SO4 and concentrated in vacuo to yield a yellow gum, which was re-dissolved in MeOH (20 mL) and Triethylamine (0.1 ml) was added. The reaction mixture was stirred for 18 hrs at room temperature and concentrated in vacuo. The residue was re-dissolved in Et20 (100 mL) and extracted with an aqueous iN solution of NaOH (50 mL). The aqueous layer was acidified with aqueous 2N HCIto pH=1 and extracted with Et20 (2x50 mL). The combined organic layers were dried overNa2SO4 and concentrated in vacuo to afford the title compound (830 mg, yield: 35percent).1HNMR (400 MHz, CDCI3): 6 ppm 6.81-6.85 (1H, t), 6.40-6.43 (1H, m), 6.21-6.24 (1H, m), 4.61(1H, s), 3.76 (3H, s).
  • 6
  • [ 128495-46-5 ]
  • [ 870837-70-0 ]
  • 7
  • [ 128495-46-5 ]
  • [ 508177-67-1 ]
 

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