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Chemical Structure| 6245-57-4 Chemical Structure| 6245-57-4

Structure of 4-Methoxy-2-methylbenzoic acid
CAS No.: 6245-57-4

Chemical Structure| 6245-57-4

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Product Details of [ 6245-57-4 ]

CAS No. :6245-57-4
Formula : C9H10O3
M.W : 166.17
SMILES Code : O=C(O)C1=CC=C(OC)C=C1C
MDL No. :MFCD00020291
Boiling Point : No data available
InChI Key :MSVRGYOYISBGTH-UHFFFAOYSA-N
Pubchem ID :597216

Safety of [ 6245-57-4 ]

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

Computational Chemistry of [ 6245-57-4 ] Show Less

Physicochemical Properties

Num. heavy atoms 12
Num. arom. heavy atoms 6
Fraction Csp3 0.22
Num. rotatable bonds 2
Num. H-bond acceptors 3.0
Num. H-bond donors 1.0
Molar Refractivity 44.86
TPSA ?

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

46.53 Ų

Lipophilicity

Log Po/w (iLOGP)?

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

1.64
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

1.79
Log Po/w (WLOGP)?

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

1.7
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.

1.64
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

1.68
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

1.69

Water Solubility

Log S (ESOL):?

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

-2.24
Solubility 0.965 mg/ml ; 0.00581 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.

-2.39
Solubility 0.684 mg/ml ; 0.00411 mol/l
Class?

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

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

-2.28
Solubility 0.876 mg/ml ; 0.00527 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

No
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.

-6.04 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.

0.56

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

0.0 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)

1.13

Application In Synthesis of [ 6245-57-4 ]

* 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 [ 6245-57-4 ]

[ 6245-57-4 ] Synthesis Path-Downstream   1~5

  • 1
  • [ 6245-57-4 ]
  • [ 1885-13-8 ]
  • 2
  • [ 35598-05-1 ]
  • [ 6245-57-4 ]
  • 3
  • [ 67-56-1 ]
  • [ 6245-57-4 ]
  • [ 35598-05-1 ]
YieldReaction ConditionsOperation in experiment
100% With thionyl chloride; at 20℃;Reflux; To a stirred mixture of 4-methoxy-2-methyl benzoic acid (1.0 g, 6 mmol) and methanol (50 mL) was added thionyl chloride (1.3 mL, 17.8 mmol), dropwise, at room temperature under a nitrogen atmosphere. The reaction mixture was heated at reflux for 3 h. The reaction mixture was allowed to cool at room temperature and concentrated to give a pale yellow liquid. The crude product was purified by flash chromatography over silica with hexanes:ethyl acetate (9:1) to give 1.11 g (100%) of methyl 2-methyl-4-(methyloxy)benzoate as a colorless liquid. 1H NMR (400 MHz, DMSO-J6): delta 7.81 (d, J = 9 Hz, IH), 6.86 (d, J = 3 Hz, IH), 6.83 (dd, J = 9, 3 Hz, IH), 3.78 (s, 3H), 3.75 (s, 3H), 2.49 (s, 3H). ES-LCMS m/z 181(M + H)+.
98% sulfuric acid; In water; for 48h;Heating / reflux; According to J. Org. Chem. 33: 494 (1968), a mixture of 4-methoxy-2-methylbenzoic acid (20 g, 120 mmol) and [MEOH] (97 mL) containing sulfuric acid [(CONC.,] 0.6 mL) was heated under reflux 48 h. After cooling the mixture was evaporated and the residue diluted with diethyl ether and washed with a saturated sodium hydrogen carbonate solution and brine. The organic phase was then separated and dried over sodium sulphate. After evaporation the residue was distilled through a 8 cm Vigreux column to afford the title compound (21.2 g, 98%) as a colourless liquid. Bp 60 [C/1] mbar. MS: m/e = 180.3 (M+).
94% With sulfuric acid; In water; at 65℃; for 18h; 4-Methoxy-2-methyl-benzoic acid methyl esterA solution of 4-Methoxy-2-methyl-benzoic acid (15 g, 90 mmol) in methanol {200 mL) was heated to 65 0C. Sulfuric acid (8.9 g, 90 mmol) was added and the mixture was stirred for 18 h at 65 C. The reaction was cooled and concentrated and the residual oil was dissolved in ethyl acetate and washed with water, brine, and absorbed onto silica to perform chromatography (10 % ethyl acetate/hexanes) to yield 4-Methoxy-2-methyl-benzoic acid methyl ester as an oil, (15.3 g, 94 %). MS: ES M+1: 181.0 (180.1).
84% With sulfuric acid; for 24h;Reflux; Benzoic acid (1 equiv) was dissolved in MeOH (1.66 mL per mmol) and H2SO4 (0.07 mL per mmol). The solution was refluxed for 7-24 h before being cooled to rt and concentrated in vacuo. The resulting mixture was dissolved in EtOAc. The organics were washed with an aqueous solution of NaOH (10 %), combined, dried over MgSO4 and concentrated in vacuo to afford the desired ester.
81% With thionyl chloride; for 3h;Heating / reflux; Preparation 67 4-Methoxy-2-methyl-benzoic acid methyl esterTo an ambient temperature suspension of 4-Methoxy-2-methyl-benzoic acid (1.0 g, 6.02 mmol) in MeOH (10 mL) is added thionyl chloride (1.10 mL, 15.04 mmol) dropwise. The reaction mixture is heated to reflux. After 3h, the reaction is concentrated and the residue is partitioned between EtOAc and NaHCO3. The aqueous layer is extracted with EtOAc and the combined organic layers are washed with brine, dried (MgSO4), filtered, and concentrated to yield the title compound (877 mg, 81%) 1H NMR (400 MHz, CDCl3) delta 7.95-7.91 (m, IH), 6.77-6.72 (m, 2H), 3.86 (s, 3H), 3.84 (s, 3H).

  • 4
  • [ 6245-57-4 ]
  • [ 74-88-4 ]
  • [ 35598-05-1 ]
  • 5
  • [ 7499-07-2 ]
  • [ 6245-57-4 ]
  • [ 54109-03-4 ]
  • [ 4741-62-2 ]
  • 3,3'-dimethoxy-5,5'-dimethyl-1,1'-biphenyl [ No CAS ]
  • 3,3'-dichloro-5,5'-dimethyl-1,1'-biphenyl [ No CAS ]
  • 3-chloro-3'-methoxy-5,5'-dimethyl-1,1'-biphenyl [ No CAS ]
 

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