E.i. Dupont De Nemours and Company

William J Middleton

William Brown Farnham

Elena M Bingham

Dotsevi Y Sogah

Shlomo Rozen

David R Brittelli

George Albert Boswell, Jr

Tris(disubstituted amino)sulfonium perfluoroalkoxides and tris(disubstituted amino)sulfonium perfluoroalkylmercaptides and process for their preparation.

Tris(disubstituted amino)sulfonium perfluoroalkoxides and

Tris(disubstituted amino)sulfonium perfluorocarbanion salts, process for their preparation and the use thereof as catalysts in group transfer polymerization.

Group transfer polymerization employing tris(disubstituted

Tris(dialkylamino)sulfonium bifluoride salts are obtained by hydrolysis, methanolysis, or pyrolysis of corresponding tris(dialkylamino)sulfonium difluorotrimethylsilicates, reaction of dialkylaminotrialkylsilanes with sulfur tetrafluoride, or reaction of bis(dialkylamino)sulfur difluorides with dialkylamines. These bifluoride salts, which have the general formula (R.sup.1 R.sup.2 N)(R.sup.3 R.sup.4 N)(R.sup.5 R.sup.6 N)S.sup..sym. HF.sub.2.sup..crclbar., are useful polymerization catalysts.

Tris(dialkylamino)sulfonium bifluoride catalysts

There is disclosed a solution of at least one fluoroxy compound, wherein said solution has a fluoroxy compound concentration of at least 0.5 meq/liter; said concentration containing about 35 to 100% of an acyl hypofluorite, based on the total number of equivalents of fluoroxy compounds present. The acyl hypofluorite has the formula X(CF.sub.2).sub.n COOF wherein X is H or F and n is 5 to 16. The solution is prepared by treating a suspension of a corresponding specified alkali salt with excess F.sub.2, and is useful as a selective fluorinating agent.

Fluoroxy compound solutions

Tris(disubstituted amino)sulfonium perfluorocarbanion salts and process for their preparation.

Tris(disubstituted amino)sulfonium perfluorocarbanion salts

Fluorinated carbamoyl sulfides, such as N,N'[thiobis[(methylimino)carbonyloxy]]bis[2,2,2-trifluoroethanimidothioic acid], dimethyl ester, useful for control of insects.

Fluorinated carbamate insecticides

Fluoroalkoxysulfur fluorides of the formula ##STR1## wherein R is H, CH.sub.3, CF.sub.3, or C.sub.2 F.sub.5, and n is 1 or 2, used as fluorinating agents to replace OH groups in organic molecules with F and halocarbon solutions of lithium fluoroalkoxides.

Use of fluoroalkoxysulfur fluorides in fluorinations

Fluoroalkoxysulfur fluorides of the formula ##STR1## wherein R is H, CH.sub.3, CF.sub.3, or C.sub.2 F.sub.5, and n is 1 or 2; their preparation by reaction of lithium fluoroalkoxides with sulfur tetrafluoride; their use as fluorinating agents to replace OH groups in organic molecules with F; and halocarbon solutions of lithium fluoroalkoxides.

Fluoroalkoxysulfur fluorides

Improved process for the preparation of 6-substituted-4-phenylquinazolinone 3-oxides. Such compounds are useful as intermediates in the preparation of 3-fluorobenzodiazepines, which are useful as tranquilizers, muscle relaxants and sedatives.

Process for preparing quinazolinone oxides

3-Fluorobenzodiazepines, such as 3-fluoro-1,3-dihydro-1-methyl-7-chloro-5-phenyl-2H-1,4-benzodiazepin-2-one , useful as tranquilizers, muscle relaxants, and sedatives.

3-Fluorobenzodiazepines and compositions and uses thereof

Process for preparing an organic compound of the formula R.sup.2 R.sup.2 CFC(O)R.sup.3, which process comprises contacting and reacting in a reaction mixture which includes an inert solvent, at a temperature of -40.degree. C. to -100.degree. C., ROF and ##STR1## R is polyfluoroperhaloalkyl of 1-6 carbon atoms or FOCF.sub.2 ; R.sup.1 is hydrocarbyl of 1-6 carbon atoms;

Synthesis of .alpha.-fluorocarbonyl compounds

N-Fluorohaloacetyl-N-methylaminobenzophenone anti-oxime, the corresponding diazepin-N-oxides, their use as tranquilizers, muscle relaxants and sedatives, and their use as intermediates in the preparation of 3-fluorobenzodiazepines, which are also useful as tranquilizers, muscle relaxants and sedatives.

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Chadds Ford, PA, United States of America

William J Middleton