Method for ether formation

Details Method for ether formation Method for ether formation

1990-12-19

1995-12-12

Cintins, Marianne M.

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

Organic compounds

Oxygen containing

568585, 568931, C07C 4300, C07C20500

Patent

active

054751497

ABSTRACT:
A process for the preparation of 4,4'-dinitro-2,2'-di(trifluoromethyl)diphenyl ether according to the equation ##STR1## where X is F, Cl, Br or I, where the inorganic base is selected from the group consisting of alkali metal hydroxides, alkali metal carbonates, and alkali metal bicarbonates, in the presence of a catalytic quantity of a benzoate catalyst. 2,8-Dinitro-6,6,12,12,-tetrafluoro-6H,12H-dibenzo[b,f][1,5]dioxocin, the corresponding diamine and polyimides formed from the diamine are also disclosed.

REFERENCES:
patent: 4558164 (1985-12-01), Jones et al.
patent: 4700011 (1987-10-01), Pillsbury
Maki and Inukai; Gov. Ind. Res. Inst. Nagoya, Nagoya, Japan Nippon Kagaku Kaishi (3) 675-7 (Japan) 1972.
Filler et al., J. Org. Chemistry, vol. 26, pp. 2707-2710 (1961).

Affiliated with

Also associated with

Rating

Method for ether formation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for ether formation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for ether formation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1361111