Purification process for 3-phenoxybenzaldehyde

Details Purification process for 3-phenoxybenzaldehyde Purification process for 3-phenoxybenzaldehyde

1977-08-16

1979-07-24

Helfin, Bernard

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 4524

Patent

active

041622693

ABSTRACT:
A purification process for 3-phenoxybenzaldehyde, which comprises reacting crude 3-phenoxybenzaldehyde with an alkali metal or ammonium bisulfite, or metabisulfite in the presence of an organic quaternary ammonium salt, an inorganic acid salt of organic tertiary amines, or a macrocyclic polyether used as a catalyst, isolating the resulting 3-phenoxybenzaldehyde alkali metal or ammonium bisulfite adduct, and decomposing it by using an acid or a base, or by heating.

REFERENCES:
patent: 4041081 (1977-08-01), Bexten et al.
patent: 4065505 (1977-12-01), Kim et al.
Lock et al., Monatshe, Chem., vol. 67 (1935) pp. 24-35.
Starks, JACS, vol. 93 (1971) 195-199.

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