Fmc Corporation

Merck + Co., Inc.

Smithkline Corporation

Duggan, Angelina J.

Angelina J Duggan

John F Engel

Robert L Webb

Kathryn A Lutomski

Benzoheterocyclyl ketone hydrazones of the formula ##STR1## in which Y is methylene, difluoromethylene or oxygen and n is 0 or 1, compositions thereof and their use as insecticides are disclosed and exemplified.

Benzoheterocyclyl ketone hydrazone insecticides

Pyrazolines of the following formula are insecticides: ##STR1## wherein R.sub.A, R.sub.B and R.sub.C are aromatic groups; R.sub.N is hydrogen or lower alkyl; and W is oxygen or sulfur.

Pyrazoline-1-carboxamides, composition containing them, and insecticidal

The novel reagent, vinyl phenylthiocarbonate, is prepared. It is useful for the introduction of the vinyloxycarbonyl protecting group which is a valuable protecting group for amines, amino acids, peptides, proteins and phenols.

Vinyl phenylthiocarbonate

5-(5'-Halo-2'-methoxyphenyl)-3,4-dihalo-2(5H)-furanones are prepared by a Friedel-Crafts reaction using a p-haloanisole and a mucohalic acid in the presence of aluminum chloride. They are used as chemical intermediates for preparing hydroxyphenylpyridazinones.

Growing community of inventors

Lawrenceville, NJ, United States of America

Angelina J Duggan