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Chemical Structure| 2905-21-7 Chemical Structure| 2905-21-7
Chemical Structure| 2905-21-7

2-Fluorobenzene-1-sulfonyl chloride

CAS No.: 2905-21-7

4.5 *For Research Use Only !

Cat. No.: A266144 Purity: 96%

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Product Details of [ 2905-21-7 ]

CAS No. :2905-21-7
Formula : C6H4ClFO2S
M.W : 194.61
SMILES Code : O=S(C1=CC=CC=C1F)(Cl)=O
MDL No. :MFCD00042285
InChI Key :ZSZKAQCISWFDCQ-UHFFFAOYSA-N
Pubchem ID :137761

Safety of [ 2905-21-7 ]

GHS Pictogram:
Signal Word:Danger
Hazard Statements:H314
Precautionary Statements:P280-P305+P351+P338-P310
Class:8
UN#:3265
Packing Group:

Calculated chemistry of [ 2905-21-7 ] Show Less

Physicochemical Properties

Num. heavy atoms 11
Num. arom. heavy atoms 6
Fraction Csp3 0.0
Num. rotatable bonds 1
Num. H-bond acceptors 3.0
Num. H-bond donors 0.0
Molar Refractivity 39.48
TPSA ?

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

42.52 Ų

Lipophilicity

Log Po/w (iLOGP)?

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

1.65
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

2.04
Log Po/w (WLOGP)?

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

3.25
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.

1.95
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

1.77
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

2.13

Water Solubility

Log S (ESOL):?

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

-2.67
Solubility 0.417 mg/ml ; 0.00214 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.

-2.56
Solubility 0.535 mg/ml ; 0.00275 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

-3.22
Solubility 0.117 mg/ml ; 0.000601 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.

-6.04 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.

0.55

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

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)

1.81

Application In Synthesis of [ 2905-21-7 ]

* 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 [ 2905-21-7 ]

[ 2905-21-7 ] Synthesis Path-Downstream   1~4

  • 1
  • [ 2905-21-7 ]
  • [ 33084-49-0 ]
  • 2-fluoro-N-(4-bromo-3-methyl-5-isoxazolyl)benzenesulfonamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
44% EXAMPLE 20 2-Fluoro-N-(4-bromo-3-methyl-5-isoxazolyl)benzenesulfonamide 2-Fluoro-N-(4-bromo- 3-methyl- 5-isoxazolyl)benzenesulfonamide was prepared from <strong>[33084-49-0]5-amino-4-bromo-3-methylisoxazole</strong> and 2-fluorobenzenesulfonyl chloride according to the procedures described in Example 1b. The crude product was purified by recrystallization from ethyl acetate/hexanes to give a white solid, m.p. 87-89 C., yield 44%.
44% EXAMPLE 60 2-Fluoro-N-(4-bromo-3-methyl-5-isoxazolyl)benzenesulfonamide 2-Fluoro-N-(4-bromo-3-methyl-5-isoxazolyl)benzenesulfonamide was prepared from <strong>[33084-49-0]5-amino-4-bromo-3-methylisoxazole</strong> and 2-fluorobenzenesulfonyl chloride according to the procedures described in Example 40b. The crude product was purified by recrystallization from ethyl acetate/hexanes to give a white solid, m.p. 87-89 C., yield 44%.
  • 2
  • [ 881674-56-2 ]
  • [ 2905-21-7 ]
  • [ 881677-09-4 ]
YieldReaction ConditionsOperation in experiment
78% Reference Example 244 5-(2-Fluorophenyl)-1-[(2-fluorophenyl)sulfonyl]-1H-pyrrole-3-carbaldehyde To a solution (25 mL) of <strong>[881674-56-2]5-(2-fluorophenyl)-1H-pyrrole-3-carbaldehyde</strong> (250 mg) in tetrahydrofuran was added sodium hydride (60% in oil, 106 mg) at room temperature and the mixture was stirred for 30 min. 15-Crown-5 (583 mg) was added dropwise and the mixture was stirred for 30 min, (2-fluorobenzene)sulfonyl chloride (386 mg) was added, and the mixture was further stirred for 1 hr. Saturated brine was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate=4:1?3:2) to give the title compound as colorless crystals (yield 360 mg, 78%). 1H-NMR (CDCl3)delta: 6.67 (1H, d, J=1.8 Hz), 6.86-6.92 (1H, m), 7.03-7.23 (5H, m), 7.33-7.41 (1H, m), 7.59-7.66 (1H, m), 8.21-8.22 (1H, m), 9.91 (1H, s).
In tetrahydrofuran; Reference Example 244 5-(2-Fluorophenyl)-1-[(2-fluorophenyl)sulfonyl]-1H-pyrrole-3-carbaldehyde To a solution (25 mL) of <strong>[881674-56-2]5-(2-fluorophenyl)-1H-pyrrole-3-carbaldehyde</strong> (250 mg) in tetrahydrofuran was added sodium hydride (60% in oil, 106 mg) at room temperature and the mixture was stirred for 30 min. 15-Crown-5 (583 mg) was added dropwise and the mixture was stirred for 30 min, (2-fluorobenzene)sulfonyl chloride (386 mg) was added, and the mixture was further stirred for 1 hr. Saturated brine was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate=4:1?3:2) to give the title compound as colorless crystals (yield 360 mg, 78%). 1H-NMR (CDCl3)delta: 6.67 (1H, d, J=1.8 Hz), 6.86-6.92 (1H, m), 7.03-7.23 (5H, m), 7.33-7.41 (1H, m), 7.59-7.66 (1H, m), 8.21-8.22 (1H, m), 9.91 (1H, s).
  • 3
  • [ 2905-21-7 ]
  • [ 56621-89-7 ]
  • C11H10FN3O3S [ No CAS ]
YieldReaction ConditionsOperation in experiment
In 1,4-dioxane; at 100℃; 2-[(2-Chloro-6-fluorobenzyl)amino]-N-(2-methoxypyrimidin-5- yl)benzenesulfonamide (lntB2) The title compound (106 mg, impure, used without further purification) was prepared in two steps from 2-fluorobenzenesulfonyl chloride (0.46 mL, 3.5 mmol) and 5-amino- 2-methoxypyrimidine (482 mg, 3.85 mmol) in 1 ,4-dioxane at 100C; followed by 2- chloro-6-fluorobenzyl amine (0.36 mL, 2.8 mmol) in MeCN (1.5 mL) at 180C in a Biotage Initiator microwave reactor using the methods of (IntBI). LCMS (Method A): m/z 421.2, 423.2 (M-H)- (ES-), at 0.13 and 1.13 min, 95% TLC: Rf = 0.64 (iso-hexane:EtOAc)
  • 4
  • [ 2905-21-7 ]
  • [ 38226-86-7 ]
  • 5-hydroxy-2-(4-methoxyphenyl)-8,8-dimethyl-4-oxo-9,10-dihydro-4H,8H-pyrano[2,3-f]chromen-3-yl 2-fluorobenzenesulfonate [ No CAS ]
YieldReaction ConditionsOperation in experiment
80.5% With triethylamine; In dichloromethane; at 25℃; for 4h; General procedure: To a mechanically stirred suspension of suspension of 1 (0.21 g, 0.53 mmol) in 30 ml CH2Cl2 were added triethylamine (0.5 ml) and aromatic sulfonyl chloride (0.53 mmol) at 25 C for 4 h. The reaction process was detected by TLC method. Then, antagonized by dilute sodium hydroxide, extracted, and washed with ether and water, evaporated under vacuum. Finally, the mixture was recrys-tallizated from ethyl acetate , providing a total product yield of 65.4%-88.6 %.
 

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