Catalytic method for producing fluoroarmatic compounds using sub

Details Catalytic method for producing fluoroarmatic compounds using sub Catalytic method for producing fluoroarmatic compounds using sub

1987-02-07

1990-11-27

Stoll, Robert L.

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

Organic compounds

Oxygen containing

546304, 548486, 568938, C07C20587

Patent

active

049737724

ABSTRACT:
A process is disclosed for preparing fluoroaromatic compounds (such as fluoronitrobenzene compounds) by reaction of corresponding chloroacromatic compounds (such as chloronitrobenzene compounds) with alkali metal fluoride salts in the presence of alkyldiorganoaminopyridinium salts as phase transfer catalysts. A tertiary carbon atom is directly attached to the alkyl carbon atom which is directly attached to the ring nitrogen atom. A preferred catalyst is N-neopentyl-4-(4'-methylpiperidinyl)pyridinium chloride.

REFERENCES:
patent: 3064058 (1962-11-01), Duesel et al.
patent: 3240824 (1966-03-01), Boudakian et al.
patent: 3992432 (1976-11-01), Napier et al.
patent: 4069262 (1978-01-01), Kunz
patent: 4140719 (1979-02-01), Tull et al.
patent: 4164517 (1979-08-01), Fuller
patent: 4226811 (1980-10-01), Oeser et al.
patent: 4229365 (1980-10-01), Oeser et al.
patent: 4252739 (1981-02-01), Fayter, Jr. et al.
patent: 4287374 (1981-01-01), North
patent: 4418229 (1983-11-01), White
patent: 4460778 (1984-07-01), Brunelle
patent: 4513141 (1985-04-01), Brunelle et al.
patent: 4595760 (1986-06-01), Brunelle
patent: 4605745 (1986-08-01), Brunelle et al.
Brunelle et al., "N-Alkyl-4-(N,N'-Dialkylamino) Pyridinium Salts: Thermally Stable Transfer Catalysts for Nucleophilic Aromatic Displacement"-Tetrahedron Letters, vol. 25, No. 32, pp. 3383-3386, 1984.
Chem Abstracts, vol. 97, 55468s (1982).
T. Tamaka et al., Chemistry Letters, pp. 1259-1262, 1976.
Stanks, "Selecting a Phase Transfer Catalyst" Chemtech, Feb. 1980, pp. 110-117.
G. C. Finger et al., J. Am. Chem Soc., 78, 6034-6037, (1956).

Affiliated with

Also associated with

Rating

Catalytic method for producing fluoroarmatic compounds using sub does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Catalytic method for producing fluoroarmatic compounds using sub, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalytic method for producing fluoroarmatic compounds using sub will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1033078