Henkel Kommanditgesellschaft Auf Aktien (henkel Kgaa)

Henkel & Cie G.m.b.h.

Peter Meins

Klaus Bruns

Jens Conrad

Hinrich Moller

Harald Schnegelberger

Kurt Voparil

Johann Schwarzer

This invention is directed to 13,15-dioxabicyclo[10.5.0]heptadecanes having the structural formula ##STR1## wherein R and R.sup.1 are independently hydrogen or a methyl radical. The invention is also directed to their preparation, their use as perfuming agents and as olefactant components in perfume compositions and as an odorant agent for technical products.

13,15-Dioxabicyclo[10.5.0]heptadecanes, their preparation, and their use

13-Oxabicyclo[10.3.0]pentadecane having the structural formula: ##STR1## its synthesis, its use as a perfumery agent and as an olefactant component in perfume compositions and as an odorant agent for technical products.

13-Oxabicyclo[10.3.0]pentadecane, its preparation and use in perfume

A perfumery composition consisting essentially of from 1% to 50% by weight of a 4-isopropyl-5,5-dimethyl-1,3-dioxane of the formula ##STR1## wherein R.sub.1 and R.sub.2 are individually members selected from the group consisting of hydrogen, alkyl having from 1 to 3 carbon atoms and cyclopropyl, and the remainder customary constituents of perfumery compositions; as well as novel 4-isopropyl-5,5-dimethyl-1,3-dioxanes of the above formula wherein both R.sub.1 and R.sub.2 are not simultaneously hydrogen.

2-Cyclopropyl-4-isopropyl-2,5,5-trimethyl-1,3-dioxane as odorant

Perfume compositions with 4-isopropyl-5,5-dimethyl-1,3-dioxane

A perfumery composition consisting essentially of from 1% to 50% by weight of cis- and trans-trimethylcyclohexylethyl ethers of the formulae: ##STR1## and the remainder customary constituents of perfumery compositions; and a process for producing trans-3,3,5-trimethylcyclohexylethyl ether by means of hydrogenation of 3,3,5-trimethylcyclohexenylethyl ether with dry nickel catalysts at a temperature of 150.degree.-200.degree. C and at 10-200 bar hydrogen pressure and processing of the hydrogenation product in the conventional manner.

Perfume compositions containing cis- and trans-trimethylcyclohexylethyl

Carbonic acid esters of the formula ##STR1## wherein R.sub.1 is a member having from 8 to 12 carbon atoms selected from the group consisting of alkylcyclohexyl, alkenylcyclohexyl, alkynylcyclohexyl and cycloalkyl, and R.sub.2 is a member selected from the group consisting of alkyl having from 1 to 5 carbon atoms, alkenyl having from 2 to 5 carbon atoms and alkynyl having from 2 to 5 carbon atoms, which compounds have pleasing and persistent scents, as well as processes for producing them and perfume compositions containing them.

Carbonic acid ester perfumes

Cycloalkyl carbonates

An odoriferous acetal having the formula ##EQU1## wherein R is a cycloalkyl having from 8 to 12 carbon atoms, R.sub.1 is a member selected from the group consisting of hydrogen and methyl, and R.sub.2 is a member selected from the group consisting of methyl, ethyl, propyl, isopropyl, allyl and propargyl. These compounds have a woody amber odor and are useful in the preparation of scents.

Odoriferous cycloalkyl acetals

Dialkylphosphonoacetylurea compounds which contain hydroxymethyl groups or alkoxymethyl groups and their preparation, as well as their use for the flameproofing of cellulose-containing materials.

Growing community of inventors

Mettmann, Germany

Peter Meins