Process for preparing difluoromethoxy derivatives of aromatic al

Details Process for preparing difluoromethoxy derivatives of aromatic al Process for preparing difluoromethoxy derivatives of aromatic al

1980-05-29

1982-02-23

Helfin, Bernard

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C07C 4561

Patent

active

043169899

ABSTRACT:
A process for preparing difluoromethoxy derivatives of aromatic aldehydes having a common formula ##STR1## where Z is H,H; or n is a whole number of 1 and 2.
The above process comprises the reaction between oxy derivatives of aromatic aldehydes selected from the group consisting of monooxy derivatives of aromatic aldehydes, and difluorochloromethane which reaction is carried out in an aqueous-dioxane medium at a temperature of 60.degree. to 70.degree. C., in the presence of 6 to 10 moles of caustic alkali per 1 mole of a starting oxyaldehyde.

REFERENCES:
patent: 519693 (1894-05-01), Bertram
patent: 3007968 (1961-11-01), Alt
Yagupolsky et al., USSR, Inventors Certificate 595,281, Mar. 23, 1978.
Houben-Weyl, Methoden der Organischen Chemie, vol. 4, No. 3, 24, 26, 27.
Geissman, Organic Reactions, vol. II, (1944), 94-97.
Henne et al., JACS, vol. 72 (1950), 4378-4380.
Hine et al. (I), JACS, vol. 79 (1957), 2654-2655.
Hine et al. (II), JACS, vol. 79 (1957), 5493-5496.

Affiliated with

Also associated with

Rating

Process for preparing difluoromethoxy derivatives of aromatic al does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing difluoromethoxy derivatives of aromatic al, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing difluoromethoxy derivatives of aromatic al will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1774919