Control and repellency of biting flies, house flies, ticks, ants, fleas, biting midges, cockroaches, spiders and stink bugs is obtained by contact of the insects with at least one of the compounds of the structure (I)

##STR00001##

wherein
R is OH, O, OC(O)R.sub.4, OR.sub.6, or (OR.sub.6).sub.2, wherein each R.sub.6 is independently an alkyl group containing from 1 to 4 carbon atoms and R.sub.4 is a branched or straight chain, saturated or unsaturated, hydrocarbyl group with zero to two double bonds and from 1 to 15 carbon atoms;
X is O or CH.sub.2, with the proviso that when X is O R can only be O:
each Z is independently (CH) or (CH.sub.2);
y is a numeral selected from 1 and 2;
R.sub.1 is H or a branched or straight chain, saturated or unsaturated hydrocarbyl group with zero to two double bonds and from 1 to 15 carbon atoms;
R.sub.2 is H and a branched or straight chain, saturated or unsaturated hydrocarbyl group with zero to three double bonds and from 1 to 15 carbon atoms;
R.sub.3 is H, a branched or straight chain, saturated or unsaturated hydrocarbyl group with zero to three double bonds and from 1 to 15 carbon atoms, (CH.sub.2).sub.nOH, C(O)OR.sub.5, CH.sub.2C(O)OR.sub.7, CH.sub.2C(O)R.sub.8, C(O)NR.sub.9R.sub.10,
or CH.sub.2C(O)NR.sub.11R.sub.12 where each of R.sub.5, R.sub.7, R.sub.8, R.sub.9, R.sub.10, R.sub.11 and R.sub.12 is independently H or a branched or straight chain, saturated or unsaturated hydrocarbyl group with zero to three double bonds and from 1 to 15 carbon atoms, and n is n integer of from 1 to 12;
the bond between the 2 and 3 positions in the ring structure may be a single or a double bond; and
wherein the compounds of structure (I) contain from 11 to 20 carbon atoms except where R is O, XCH.sub.2 and y is 1 the compounds of structure (I) contain from 13 to 20 carbon atoms, with the proviso that when R.sub.3 is CH.sub.2C(O)OR.sub.7 R.sub.1 and R.sub.2 must be H or a saturated hydrocarbyl group with zero double bonds. The invention also includes optical isomers, diastereomers and enantiomers of the compounds of structure (I).

Provided is a catalyst for preparing 1,3-cyclopentanediol by hydrogenation of 4-hydroxy-2-cyclopentenone, the catalyst including: a carrier including -Al.sub.2O.sub.3; and an active metal supported on the carrier.

Provided is a catalyst for preparing 1,3-cyclopentanediol by hydrogenation of 4-hydroxy-2-cyclopentenone, the catalyst including: a carrier including -Al.sub.2O.sub.3; and an active metal supported on the carrier.

A method to generate cyclic hydrocarbons from farnesene to increase both the density and net heat of combustion of the product fuels.

A method to generate cyclic hydrocarbons from farnesene to increase both the density and net heat of combustion of the product fuels.

Control and repellency of biting flies, house flies, ticks, ants, fleas, biting midges, cockroaches, spiders and stink bugs is obtained by contact of the insects with at least one of the compounds of the structure (I). ##STR00001##

Control and repellency of biting flies, house flies, ticks, ants, fleas, biting midges, cockroaches, spiders and stink bugs is obtained by contact of the insects with at least one of the compounds of the structure (I). ##STR00001##

A compound is provided of Formula (I)

##STR00001##

wherein R.sup.1 represents a C.sub.3 to C.sub.20 hydrocarbon group derived from an alcohol of formula R.sup.1OH, from a formate of formula R.sup.1OCHO, or a cinnamyl aldehyde of Formula (II)

##STR00002##

wherein a compound of Formula I is capable of releasing a compound, when oxidized, selected from the group consisting of a fragrant alcohol of formula R.sup.1OH, a fragrant formate ester of formula R.sup.1OCHO and aryl aldehyde of Formula (III)

##STR00003##

wherein R.sup.2 is, independently, hydrogen atom, hydroxyl group, optionally substituted C.sub.1-C.sub.6 alkyl group, C.sub.1-C.sub.6 alkoxy group, or O(CO)CH(CH3).sub.2 wherein any two of R.sup.2 may form an optionally substituted 5 or 6 membered ring. The compounds are useful for example as a precursor for the prolonged delivery or release of fragrant compounds such as fragrant alcohols, fragrant aldehydes or fragrant formates.

A compound is provided of Formula (I)

##STR00001##

wherein R.sup.1 represents a C.sub.3 to C.sub.20 hydrocarbon group derived from an alcohol of formula R.sup.1OH, from a formate of formula R.sup.1OCHO, or a cinnamyl aldehyde of Formula (II)

##STR00002##

wherein a compound of Formula I is capable of releasing a compound, when oxidized, selected from the group consisting of a fragrant alcohol of formula R.sup.1OH, a fragrant formate ester of formula R.sup.1OCHO and aryl aldehyde of Formula (III)

##STR00003##

wherein R.sup.2 is, independently, hydrogen atom, hydroxyl group, optionally substituted C.sub.1-C.sub.6 alkyl group, C.sub.1-C.sub.6 alkoxy group, or O(CO)CH(CH3).sub.2 wherein any two of R.sup.2 may form an optionally substituted 5 or 6 membered ring. The compounds are useful for example as a precursor for the prolonged delivery or release of fragrant compounds such as fragrant alcohols, fragrant aldehydes or fragrant formates.

The present invention pertains to novel cyclopentanols and their unexpected advantageous use thereof in enhancing, improving or modifying the fragrance of perfumes, colognes, toilet waters, fabric care products, personal products, and the like.