Abstract: Compounds of the formula ##STR1## wherein R.sup.1 is C.sub.1-5 alkyl, R.sup.2 is selected from hydrogen and C.sub.1-5 alkyl, X is selected from hydrogen and --COR.sup.3 wherein R.sup.3 is selected from hydrogen and C.sub.1-6 alkyl are useful in room fresheners and other compositions for counteracting malodors in air, wherein the malodors are caused by one or more compounds selected from lower carboxylic acids, thiols, thiophenols, phenols, lower amines, phosphines and arsines. The defined compounds impart little or no fragrance to such compositions but the compositions may include additional fragrances. Particularly valuable and novel compounds are those wherein R.sup.1 is methyl, R.sup.2 is selected from hydrogen and methyl and X is --COR.sup.3 wherein R.sup.3 is C.sub.2-6 alkyl.

Abstract: Compounds of the formula ##STR1## wherein R.sup.1 is C.sub.1-5 alkyl, R.sup.2 is selected from hydrogen and C.sub.1-5 alkyl, X is selected from hydrogen and --COR.sup.3 wherein R.sup.3 is selected from hydrogen and C.sub.1-6 alkyl are useful in room freshners and other compositions for counteracting malodors in air, wherein the malodors are caused by one or more compounds selected from lower carboxylic acids, thiols, thiophenols, phenols, lower amines, phosphines and arsines. The defined compounds impart little or no fragrance to such compositions but the compositions may include additional fragrances. Particularly valuable and novel compounds are those wherein R.sup.1 is methyl, R.sup.2 is selected from hydrogen and methyl and X is --COR.sup.3 wherein R.sup.3 is C.sub.2-6 alkyl.

Abstract: 3,3-Dimethyl-1,5-dioxaspiro [5,5] undecane is useful in perfumery compositions. It can be made economically by reaction of cyclohexanone with neopentyl glycol in the presence of an acid, generally paratoluene sulphonic acid, under dehydrating conditions, generally by refluxing with a non-polar solvent.

Abstract: A phenylethyl substituted dimer of ethylene and maleic anhydride, named 7-phenyloctane-(1,2),(5,6)-dianhydride, is chemically synthesized by(a) alkylating alkyl 2,4-dihalobutyrate with alkyl 2-cyano-3-phenylbutyrate,(b) alkylating the resulting halide condensation product with a carboxylate selected from the group consisting of trialkyl ethane-1,1,2-tricarboxylate and dimethyl cyanoethane-1,2-dicarboxylate,(c) acid hydrolyzing the resulting tetra or pentaester accompanied by decarboxylating, and(d) dehydrating the resulting tetra-acid to yield the desired phenylethyl substituted dimer of ethylene and maleic anhydride,wherein the alkyls in the butyrate and carboxylate ester groups each contain from one to about four carbon atoms and halo is selected from the group consisting of bromo, chloro and iodo.

Abstract: A phenylethyl substituted dimer of ethylene and maleic anhydride, named 7-phenyloctane-(1,2),(5,6)-dianhydride, is chemically synthesized by(a) alkylating alkyl 2,4-dihalobutyrate with alkyl 2-cyano-3-phenylbutyrate,(b) alkylating the resulting halide condensation product with a carboxylate selected from the group consisting of trialkyl ethane-1,1,2-tricarboxylate and dimethyl cyanoethane-1,2-dicarboxylate,(c) acid hydrolyzing the resulting tetra or pentaester accompanied by decarboxylating, and(d) dehydrating the resulting tetra-acid to yield the desired phenylethyl substituted dimer of ethylene and maleic anhydride,wherein the alkyls in the butyrate and carboxylate ester groups each contain from one to about four carbon atoms and halo is selected from the group consisting of bromo, chloro and iodo.

Abstract: A phenylethyl substituted dimer of ethylene and maleic anhydride, names 7-phenyloctane-(1,2),(5,6)-dianhydride, is chemically synthesized by(a) alkylating alkyl 2,4-dihalobutyrate with alkyl 2-cyano-3-phenylbutyrate,(b) alkylating the resulting halide condensation product with a carboxylate selected from the group consisting of trialkyl ethane-1,1,2-tricarboxylate and dimethyl cyanoethane-1,2-dicarboxylate,(c) acid hydrolyzing the resulting tetra or pentaester accompanied by decarboxylating, and(d) dehydrating the resulting tetra-acid to yield the desired phenylethyl substituted dimer of ethylene and maleic anhydride,wherein the alkyls in the butyrate and carboxylate ester groups each contain from one to about four carbon atoms and halo is selected from the group consisting of bromo, chloro and iodo.The dimer has anti-tumor and anti-viral properties and can be used in silver halide emulsions.

Abstract: Mono-substituted terminal diesters of malonic acid are prepared by reaction of the corresponding substituted 1,2-diesters with alkali metal hydride in the presence of organic solvent medium.

Abstract: Compounds of the formula ##STR1## wherein A, B, C individually represent hydrogen or an alkyl group of 1 to 6 carbon atoms, provided that the total combined number of carbon atoms of A, B and C does not exceed 8;X represents oxygen, sulfur, ##STR2## wherein the alkyl group has 1 to 7 carbon atoms or ##STR3## wherein R and R' represent hydrogen or a methyl group; n represents 1 or 2; andZ represents a hydroxyalkyl group of 2 to 7 carbon atomshave been found to be useful in compositions and methods for counteracting malodors.

Abstract: The compounds represented by the structural formula ##STR1## wherein A, B and C each independently represent hydrogen or lower alkyl having from 1 to 4 carbon atoms, provided that the sum of the carbon atoms in A, B and C is no more than 5,R.sup.1 represents alkyl having from 1 to 4 carbons,have been found to be particularly useful in compositions and methods for counteracting malodors. Novel compounds are also disclosed.

Abstract: 1-(Norborn-5'-en-2'-yl) or 1-(norborn-2'-yl) substituted 1-alken-3-ols and alkan-3-ols characterized by the structural formulae ##STR1## wherein R.sup.1 represents hydrogen or methyl, R represents an alkyl with from 1 to 8 carbon atoms, and R.sup.2 and R.sup.3 represent hydrogen or an alkyl with from 1 to 8 carbon atoms, provided that R and R.sup.2 can be --CH.sub.2 --.sub.n wherein n represents the integer 2, 3 or 4. The compounds have very pleasant, lasting floral-woody aromas and are useful as components in fragrance compositions.

Abstract: 2-Alkyl-oct-5-en-2-ols and their esters characterized by the structural formula ##STR1## wherein R represents alkyl having from 1 to 8 carbon atoms and R.sup.1 represents hydroxyl or R.sup.2 COO--, wherein R.sup.2 represents alkyl having from 1 to 8 carbon atoms, aryl or aralkyl. These compounds can be in the cis or trans forms or mixtures thereof. The compounds have very pleasant, strong and long lasting green, floral, rosy aromas and are useful as fragrances or as components in fragrance compositions.

Abstract: Compositions and methods for counteracting malodors. 4-cyclohexyl-4-methyl-2-pentanone has been found to be particularly useful in such compositions and methods.

Abstract: 1-(3'-Hexenyl)-1-cycloalkanols and their esters characterized by the structural formula ##SPC1##Wherein R represents hydroxyl or R.sup.1 COO--, wherein R.sup.1 represents alkyl having from 1 to 8 carbon atoms, aryl or aralkyl and n is an integer from 1 to 3. These compounds can be in the cis or trans forms or mixtures thereof. The compounds have very pleasant, strong and long lasting green, floral, rosy aromas and are useful as fragrances or as components in fragrance compositions.

Abstract: 2-Alkyl-oct-5-en-2-ols and their esters characterized by the structural formula ##EQU1## wherein R represents alkyl having from 1 to 8 carbon atoms and R.sup.1 represents hydroxyl or R.sup.2 COO--, wherein R.sup.2 represents alkyl having from 1 to 8 carbon atoms, aryl or aralkyl. These compounds can be in the cis or trans forms or mixtures thereof. The compounds have very pleasant, strong and long lasting green, floral, rosy aromas and are useful as fragrances or as components in fragrance compositions.

Abstract: 4-(2'-norbornyl)-2-butanones characterized by the structural formula ##SPC1##Wherein R.sup.1 represents hydrogen or methyl, and R represents hydrogen or a lower alkyl group are prepared by a crossed aldol condensation of 5-norbornene-2-carboxaldehyde or norbornane-2-carboxaldehyde with methyl ketones in a basic medium followed by a subsequent dehydration of the aldol formed to prepare the 3-buten-2-ones which are subsequently hydrogenated. The compounds have very pleasant, strong and long lasting woody odors and are useful as compounds in fragrance compositions.