Fluorobenzaldehyde

Fluorobenzaldehyde
Surname	2-fluorobenzaldehyde	3-fluorobenzaldehyde	4-fluorobenzaldehyde
other names	o -fluorobenzaldehyde	m -fluorobenzaldehyde	p -fluorobenzaldehyde
Structural formula
CAS number	446-52-6	456-48-4	459-57-4
PubChem	67970	68009	68023
Molecular formula	C 7 H 5 FO
Molar mass	124.12 g mol −1
Physical state	liquid
Melting point	−44.5 ° C		−10 ° C
boiling point	172-174 ° C	169-174 ° C	176-179 ° C
GHS labeling	Caution
H and P phrases	226-315-319-335
	no EUH phrases
	261-305 + 351 + 338

In chemistry, fluorobenzaldehydes are a group of substances that are derived from both benzaldehyde and fluorobenzene . The structure consists of a benzene ring with an attached aldehyde group  (–CHO) and fluorine  (–F) as substituents . Their different arrangements ( ortho , meta or para ) result in three constitutional isomers with the empirical formula C ₇ H ₅ FO.

properties

The introduction of the fluorine atom changes the boiling point only slightly compared to benzaldehyde (179 ° C).

Individual evidence

1. ↑ ^{a b} data sheet 2-fluorobenzaldehydes from Sigma-Aldrich , accessed on April 29, 2011 ( PDF ).
2. ↑ ^{a b} Data sheet 4-Fluorobenzaldehyde from Sigma-Aldrich , accessed on April 29, 2011 ( PDF ).
3. ↑ ^{a b c} FLUKA catalog 2001/2002, p. 656.
4. ↑ Data sheet 3-Fluorobenzaldehyde from Sigma-Aldrich , accessed on November 3, 2016 ( PDF ).
5. ↑ Entry on benzaldehyde in the GESTIS substance database of the IFA , accessed on December 27, 2014(JavaScript required) .