Preparation of fluorine-containing diphenyl ethers

Details Preparation of fluorine-containing diphenyl ethers Preparation of fluorine-containing diphenyl ethers

1981-01-19

1983-05-17

Torrence, Dolph H.

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

Organic compounds

Carboxylic acids and salts thereof

260465D, 260465F, 560 21, 560 65, 562465, 564 99, 564166, 564171, 568315, 568639, 570127, C07C 6521, C07C 2513, C07C12175, C07C14374

Patent

active

043841350

ABSTRACT:
A method of preparing a diphenyl ether compound of the formula (II) ##STR1## wherein X is F, Cl or Br; Z is hydrogen, halogen, NO.sub.2 of CN; and W is methyl, cyano, CH.sub.3 CO--, or a group --C--OR, wherein R is --OH; --OM wherein M is a cation; OR.sup.1 wherein R.sup.1 is an optionally substituted aliphatic radical; --NR.sup.2 R.sup.3 wherein R.sup.2 and R.sup.3 are each hydrogen or an optionally substituted aliphatic radical; or --NHSO.sub.2 R.sup.4 wherein R.sup.4 is alkyl of 1 to 6 carbon atoms, which comprises reacting a 3-X-substituted-4,5-difluorobenzotrifluoride with a salt of a 3,4-W,Z-substituted phenol. The invention further comprises novel 3-X-4,5-difluorobenzotrifluorides for use in the process.

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patent: 4285723 (1981-08-01), Cartwright et al.
H. S. Gutowsky et al., Chemisches Zentralblatt, 1953, 124, No. 41, p. 6644.
G. C. Finger et al., Chem. Abs. 1946, 40, No. 13, abs. Running from col. 3733-9 to col. 3734-1.
Methoden der Organischen Chemie (Houben-Weyl) Band VI/3, p. 87.
Methoden der Organischen Chemie (Houben-Weyl) 1962, Band V/3, pp. 162-163.
Chemistry of Organic Fluorine Compounds, by Milos Hudlicky, 1976, pp. 120-121.

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