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Home > Encyclopedia > 2-Fluorobenzyl alcohol

2-Fluorobenzyl alcohol

2-Fluorobenzyl alcohol structure

2-Fluorobenzyl alcohol 

structure
  • CAS No:

    446-51-5

  • Formula:

    C7H7FO

  • Chemical Name:

    2-Fluorobenzyl alcohol

  • Synonyms:

    Benzenemethanol,2-fluoro-;Benzyl alcohol,o-fluoro-;2-Fluorobenzenemethanol;2-Fluorobenzyl alcohol;o-Fluorobenzyl alcohol;(2-Fluorophenyl)methanol;NSC 158274;185532-96-1

  • Categories:

    Organic Chemistry  >  Organic Fluorine Compound

Description

clear colorless to slightly yellow liquid

2-Fluorobenzyl alcohol Basic Attributes

126.13

126.13

2079486

207-170-7

158274

DTXSID10196241

29062900

Characteristics

20.2

1.3

Clear colorless to slightly yellow Liquid

1.2±0.1 g/cm3

91-94 °C

82 °C @ Press: 10 Torr

195 °F

1.521

Store below +30°C.

1.16mmHg at 25°C

Safety Information

IRRITANT

3

14-34-36/37

23-24/25-45-36/37/39-27-26

Xi,C

Irritant

Stable under normal temperatures and pressures.

P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501

H315

2-Fluorobenzyl alcohol Use and Manufacturing

Methods of Manufacturing

Preparation of (1, 2, 3, 10-tetramethoxy-9-oxo-5, 6, 7, 9-tetrahydro-benzo[a]heptalen-7-yl)-carbamic acid 2-fluoro benzyl ester (Compound 5) 106 mg (0.84 mmol) of To a solution of XIIf (0.2 g, 1.5 mmol) and 26 2-hydroxyisoindoline-1, 3-dione (0.435 g, 2.3 mmol) in dry 32 THF (2 mL) at room temperature was added 46 triphenyl phosphine (0.498 g, 1.9 mmol) and the system was stirred for 30 minutes. The reaction mixture was cooled to 0 C., 47 DEAD (0.330 g, 1.9 mmol) was added dropwise and the reaction mixture was stirred at room temperature for 16 h. The reaction mixture was quenched with cold 67 water (50 mL) and extracted with EtOAc (2×50 mL). The combined organic layers were washed with water (25 mL), brine (25 mL), then dried over sodium sulfate, and evaporated under vacuum to give crude product. The crude product was purified by column chromatography (0-10% 29 EtOAc in 93 pet ether) to provide 94 XIIIf (0.130 g, 30% yield) as a white solid. 1H NMR (500 MHz, DMSO-d6): delta 7.86 (m, 4H), 7.59-7.54 (m, 2H), 7.26-7.21 (m, 2H), 5.15 (s, 2H).General procedure: To a solution of alcohol (1mmol) in freshly distilled THF (5ml) was added triphenylphosphine (1.1mmol) and N-hydroxylphthalimide (1.1mmol). After the solution was cooled to 0C diisopropylazodicarboxylate (1.1mmol) was added dropwise. The solution was allowed to warm to room temperature over 3h. Reaction progress was monitored by TLC (1:1 heptanes:ethyl acetate). Hydrazine monohydrate (1.1mmol) was then added and the solution was allowed to stir for 30min. The resulting reaction mixture was filtered to remove the white precipitate. The filtrate was concentrated and subjected to flash chromatography (1:1 heptanes/ethyl acetate). The resulting product was dissolved in ether and treated with HCl (2.0M solution in ether) to afford the HCl salt of the O-alkylhydroxylamine. Contaminating diisopropyl hydrazinodicarboxylate could be washed away from the HCl salt with dichloromethane

Uses

Intermediate for medicine, pesticide, liquid crystal material.

Computed Properties

Molecular Weight:126.13
XLogP3:1.3
Hydrogen Bond Donor Count:1
Hydrogen Bond Acceptor Count:2
Rotatable Bond Count:1
Exact Mass:126.048093005
Monoisotopic Mass:126.048093005
Topological Polar Surface Area:20.2
Heavy Atom Count:9
Complexity:85
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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