Difluorobenzoyl chlorides

The difluorobenzoyl chlorides form a group of substances that are derived from benzoyl chloride as well as from the fluorine-substituted benzenes . The structure consists of benzoyl chloride with two fluorine added as substituents . Their different arrangement results in six constitutional isomers .

properties

Difluorobenzoyl chlorides

Surname

2,3-difluorobenzoyl chloride

2,4-difluorobenzoyl chloride

2,5-difluorobenzoyl chloride

2,6-difluorobenzoyl chloride

3,4-difluorobenzoyl chloride

3,5-difluorobenzoyl chloride

Structural formula

CAS number

18355-73-2

72482-64-5

35730-09-7

697-73-4

76903-88-3

129714-97-2

(Mixture of isomers) not available

PubChem

145600

C ₆ H ₃ COClF ₂

176.55 g mol ⁻¹

liquid

firmly

liquid

Brief description

colorless liquid

Melting point

34-38 ° C

boiling point

85–87 ° C (19 hPa)

92–93 ° C (45 hPa)

density

1.423 g cm ⁻³ (25 ° C)

1.437 g cm ⁻³ (25 ° C)

1.425 g cm ⁻³ (25 ° C)

1.403 g cm ⁻³

Refractive index

1.5143 (20 ° C)

1.5157 (20 ° C)

1.515 (20 ° C)

1.5114 (20 ° C)

1.5031 (20 ° C)

solubility

GHS
labeling

danger

danger

H and P phrases

314-335

226-314

314

314-335

no EUH phrases

261-280-305 + 351 + 338-310

280-305 + 351 + 338-310

261-280-305 + 351 + 338-310

use

Difluorobenzoyl chlorides are used as an intermediate in the production of other chemical compounds (e.g. thiohydrazides or etoxazole ).

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g Data sheet 2,3-Difluorobenzoyl chloride, 97% from Sigma-Aldrich , accessed on October 15, 2015 ( PDF ).
↑ ^a ^b ^c ^d ^e ^f data sheet 2,4-Difluorobenzoyl chloride, 98% from Sigma-Aldrich , accessed on October 15, 2015 ( PDF ).
↑ ^a ^b ^c ^d ^e ^f ^g data sheet 2,5-Difluorobenzoyl chloride, 98% from Sigma-Aldrich , accessed on October 15, 2015 ( PDF ).
↑ ^a ^b Data sheet 2,6-Difluorobenzyl chloride, 97% from Sigma-Aldrich , accessed on October 15, 2015 ( PDF ).
↑ ^a ^b ^c ^d data sheet 3,4-Difluorobenzoyl chloride, 98% from Sigma-Aldrich , accessed on October 15, 2015 ( PDF ).
↑ ^a ^b ^c data sheet 3,5-Difluorobenzoyl chloride, 98% from Sigma-Aldrich , accessed on October 15, 2015 ( PDF ).
↑ Ulrich Schirmer, Peter Jeschke, Matthias Witschel: Modern Crop Protection Compounds Herbicides . John Wiley & Sons, 2012, ISBN 978-3-527-32965-6 , pp. 1022 ( limited preview in Google Book search).

[Sigma23-1] ↑ ^a ^b ^c ^d ^e ^f ^g Data sheet 2,3-Difluorobenzoyl chloride, 97% from Sigma-Aldrich , accessed on October 15, 2015 ( PDF ).

[Sigma24-2] ↑ ^a ^b ^c ^d ^e ^f data sheet 2,4-Difluorobenzoyl chloride, 98% from Sigma-Aldrich , accessed on October 15, 2015 ( PDF ).

[Sigma25-3] ↑ ^a ^b ^c ^d ^e ^f ^g data sheet 2,5-Difluorobenzoyl chloride, 98% from Sigma-Aldrich , accessed on October 15, 2015 ( PDF ).

[Sigma26-4] Data sheet 2,6-Difluorobenzyl chloride, 97% from Sigma-Aldrich , accessed on October 15, 2015 ( PDF ).

[Sigma34-5] ta sheet 3,4-Difluorobenzoyl chloride, 98% from Sigma-Aldrich , accessed on October 15, 2015 ( PDF ).

[Sigma35-6] ta sheet 3,5-Difluorobenzoyl chloride, 98% from Sigma-Aldrich , accessed on October 15, 2015 ( PDF ).

[Ulrich_Schirmer,_Peter_Jeschke,_Matthias_Witschel-7] Ulrich Schirmer, Peter Jeschke, Matthias Witschel: Modern Crop Protection Compounds Herbicides . John Wiley & Sons, 2012, ISBN 978-3-527-32965-6 , pp. 1022 ( limited preview in Google Book search).