Cyclic sulfonate-sulfate anhydrides are produced by the reaction of an .alpha.- or .beta.-type sulfolene compound with SO.sub.3. Reaction of the cyclic sulfonate-sulfate anhydrides with alcohols produces alkyl esters of hydroxysulfolane sulfonic acids. The cyclic sulfonate-sulfate anhydrides or the alkyl esters of hydroxysulfolane sulfonic acids can be hydrolyzed to hydroxysulfolane sulfonic acids or their respective salts. The latter can be acylated to alkylcarbonyloxysulfolane sulfonic acids.

Families of Diels Alder adducts and of metal complexes of Diels Alder adducts, which are useful as particularly active compounds for use in photodynamic therapy, are disclosed. The Diels Alder adducts and a preferred family of metal complexes have the structures of Formulas 1, 2, 3 and 4, below: ##STR1## where R1, R2, R3 and R4 can be the same or different, and each is methyl, ethyl or an amino acid moiety which is a part of an amide produced by reaction between an amine function of a naturally ...

A novel process for the purification of an alkylene oxide adduct which has been prepared using halogen-containing metal catalysts and contains halogen-containing compounds and also metals as impurities comprises treating the alkylene oxide adduct which is to be purified with an excess of alkali metal compound and adjusting the pH of the alkaline mixture obtained to a value of at most 7 using an acid, with the proviso that the water content of the product mixture which is then present is at least...

The present invention relates to inhibitors of lactate dehydrogenase that can cross the blood brain barrier and there is described herein the preparation of several analogues of nicotinamide-adenine-dinucleotide (NAD.sup.+) pyruvate adduct, of which 3(-4-(reduced 3-pyridine aldehyde-adenine dinucleotide))-pyruvate (RAP) and similar compounds appear to have a very high affinity for lactate dehydrogenase; one of which (RAP) was shown to strongly inhibit lactate production in rat brain extracts.

Adducts of metabrominated monophenols such as 3,5-dibromo-2,4,6-trimethylphenol and multifunctional epoxides such as cresol-formaldehyde epoxy novolac resins are disclosed to be useful in formulations for encapsulating electronic components.

Diels-Alder adducts of myrcene epoxide have been found to exhibit excellent olfactory and perfumery properties. The adducts are made by reacting myrcene epoxide with an .alpha., .beta. -unsaturated carbonyl compound (dienophile), such as acrolein, in a Diels-Alder reaction. Additionally the adducts can be hydrogenated to form the saturated adduct which also possesses excellent olfactory properties.

New compositions are made by the 1:1 molar reaction of hexamethylenetetramine with a haloacetic acid ester. The quaternary salts thus formed are colorless crystalline solids, readily soluble in water and having biological activity. They are bactericides which also have fungicidal activity.

A process is described for preparing halogenated halocyclopentadiene adducts of styrene by reacting a styrene derivative with a halogenated cyclopentadiene in a Diels-Alder reaction, and then halogenating the aromatic ring to contain between 1 and 5 halogen atoms. The resulting compounds are useful as fire retardant additives in various elastomers and plastics, especially acrylonitrile-butadiene-styrene (ABS).

This invention relates to certain new nitrogen-containing compounds, more particularly to N-substituted and N,N-disubstituted piperazine amides, the acyl moieties of which are the acyl moieties of the hexachlorocyclopentadiene adducts of either 9-octadecenoic or 10-undecenoic acids. The compounds which are the subject of this invention are characterized by the fact that as growth inhibitors they are effective against a variety of bacteria, yeasts, and molds, some of which are pathogenic. They ar...

The present invention provides compounds useful as surfactants having formula (1), including isomers thereof: ##STR1## wherein a and b are integers independently selected from about 3 to about 6; x is an integer from about 1 to about 12; (m+n) is from about 1 to about 4; the R.sub.1 groups are independently selected from the group consisting of linear, cyclic, and branched alkyl, alkenyl, aryl, and alkylaryl groups having from about C.sub.3 to about C.sub.30 atoms; and when (m+n) is equal to or ...