The polymerization stability and the chemical stability and the water resistance of resin films are improved. A surfactant composition according to an embodiment contains a surfactant (A) represented by general formula (1) and an anionic surfactant (B) having a hydrophobic group different from that of the surfactant (A). In the formula, R.sup.1 represents one or two groups selected from groups below, D.sup.1 represents a polymerizable unsaturated group represented by chemical formula D.sup.1-1 or D.sup.1-2 below, R.sup.2 represents a hydrogen atom or a methyl group, m1 and m2 represent 1 to 2, A.sup.1 represents an alkylene group with 2 to 4 carbon atoms, and m3 represents 1 to 100. ##STR00001##

The polymerization stability and the chemical stability and the water resistance of resin films are improved. A surfactant composition according to an embodiment contains a surfactant (A) represented by general formula (1) and an anionic surfactant (B) having a hydrophobic group different from that of the surfactant (A). In the formula, R.sup.1 represents one or two groups selected from groups below, D.sup.1 represents a polymerizable unsaturated group represented by chemical formula D.sup.1-1 or D.sup.1-2 below, R.sup.2 represents a hydrogen atom or a methyl group, m1 and m2 represent 1 to 2, A.sup.1 represents an alkylene group with 2 to 4 carbon atoms, and m3 represents 1 to 100. ##STR00001##

The invention relates to monocarbonyl complexes of ruthenium and osmium with bi- and tridentate nitrogen and phosphine ligands. The invention relates to methods for preparing these complexes and the use of these complexes, isolated or prepared in situ, as catalysts for reduction reactions of ketones and aldehydes both via transfer hydrogenation or hydrogenation with hydrogen.

The invention relates to monocarbonyl complexes of ruthenium and osmium with bi- and tridentate nitrogen and phosphine ligands. The invention relates to methods for preparing these complexes and the use of these complexes, isolated or prepared in situ, as catalysts for reduction reactions of ketones and aldehydes both via transfer hydrogenation or hydrogenation with hydrogen.

A negative resist composition comprising a polymer comprising recurring units having at least two acid-eliminatable hydroxyl or alkoxy groups in the molecule is effective for forming a resist pattern having a high resolution and minimal LER while minimizing defects.

A negative resist composition comprising a polymer comprising recurring units having at least two acid-eliminatable hydroxyl or alkoxy groups in the molecule is effective for forming a resist pattern having a high resolution and minimal LER while minimizing defects.

Disclosed herein are embodiments of a method for making substituted compounds with specific and selectable regiochemistry. Also disclosed are compounds made by the method. The method may comprise contacting a compound having a formula I

##STR00001##

with a compound according to formula II

##STR00002##

in the presence of a Lewis acid to form a phenol compound according to formula III and/or a benzofuranone compound according to formula IV

##STR00003##

Disclosed herein are embodiments of a method for making substituted compounds with specific and selectable regiochemistry. Also disclosed are compounds made by the method. The method may comprise contacting a compound having a formula I

##STR00001##

with a compound according to formula II

##STR00002##

in the presence of a Lewis acid to form a phenol compound according to formula III and/or a benzofuranone compound according to formula IV

##STR00003##

The present invention relates to new malodour-counteracting agents of formula (I) or stereoisomers thereof, particularly useful in blocking the olfactory perception of androstenone, Formula (I), wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and X have the same meaning as that defined in the claims. The present invention also relates to consumer products comprising said agents. The present invention also relates to the use of said agents to suppress or attenuate undesirable odour, as well as to methods to suppress or attenuate undesirable odour employing said compounds.

##STR00001##

Compounds that are central nervous system drug candidates for the treatment of cognitive decline and, more particularly, Alzheimer's disease are provided. Methods of treating, inhibiting, and/or abatement of cognitive decline and/or Alzheimer's disease with a compound or pharmaceutically acceptable salt of the invention are also provided. Also provided are methods of preparing the compounds/compositions of the invention.