The invention provides compositions and methods for isolating phenolic compounds, particularly isoflavones, from aqueous extracts of plant materials that contain such compounds. The process comprising: (a) providing an aqueous plant extract at a first pH less than 10, the aqueous plant extract comprising a plurality of phenolic compounds; (b) extracting the aqueous plant extract with a first organic solvent to yield a first organic extract; (c) extracting the first organic extract with an aqueou...

A process for making a compound of the formula comprising dialkylating a benzodioxane aniline ##STR00001##

A process is provided for producing alkylthio-substituted carboxylic acids and arylthio-substituted carboxylic acids and their corresponding alkylthio-substituted thioesters and arylthio-substituted thioesters. The process comprises reacting a mercaptan with a lactone in the presence of an acidic catalyst at temperatures of about 100.degree. C. to about 350.degree. C. The process for preparing the thio-substituted carboxylic acids and thio-substituted thioesters may be a continuous process or a ...

The bis(hydroxyphenyl) sulfides mixture prepared according to the inventive method is advantageous in respect of the increased proportion of 4-mercaptophenol relative to less useful 2-mercaptophenol in the product obtained by the reductive decomposition of the mixture. The inventive method is characterized by performing the reaction of phenol and sulfur chloride in a specific solvent which is an ethylene glycol monoalkyl ether compound such as ethylene glycol monomethyl ether, triethylene glycol...

Two classes of vinyl cyclic acetal compounds, 2-methyl-5-vinyloxy-1,3-dioxane and 2-methyl-4-vinyloxymethyl-1,3-dioxolane in particular, and a process for preparing compounds of these classes by catalytic pyrolysis are disclosed.

A perfumery composition consisting essentially of from 1% to 50% by weight of an alkyl-substituted 1,4-dioxane of the formula ##STR1## wherein R.sub.1 is alkyl having from 4 to 12 carbon atoms, R.sub.2 is hydrogen, R.sub.1 and R.sub.2, when taken together, represent a bivalent radical selected from the group consisting of alkylene having from 3 to 12 carbon atoms and alkylalkylene having from 1 to 4 carbon atoms in the alkyl and from 3 to 12 carbon atoms in the alkylene, R.sub.3 and R.sub.4 are ...

A process for preparing a compound of the formula: ##STR1## which comprises reacting a compound of the formula: ##STR2## wherein R.sub.3 is nitro or halo, with a compound of formula R.sub.1 S--X wherein X is hydrogen or alkali metal.

A filtering means containing gelatinous and solid materials is cleaned without dismantling the filtering means by contacting the gelatinous material inside the filtering means with a solvent, thereby physically degrading the gelatinous material such that the degraded gelatinous material can pass through the filtering means.

The present invention relates to non-steroidal ligands for use in nuclear receptor-based inducible gene expression system, and a method to modulate exogenous gene expression in which an ecdysone receptor complex comprising: a DNA binding domain; a ligand binding domain; a transactivation domain; and a ligand is contacted with a DNA construct comprising: the exogenous gene and a response element; wherein the exogenous gene is under the control of the response element and binding of the DNA bindin...

A process is provided for preparing dialkyl sulfides by reacting alkanols and hydrogen sulfide in the presence of a zeolite catalyst that contains a reduced amount of alkali metal cations.