摘要:
A method of controlling metal leaching in heterogeneous catalysis conducted in the presence of a solid-supported, metal complex catalyst with liquid feed subject to inclusion of ligands competitive with the solid support for the metal complex. The method is specifically applicable where the heterogeneous catalysis reaction is a combined hydroformylation/reduction reaction producing aldehydes and alcohols from olefins.
摘要:
Described are tertiary hydroxyl carboxaldehydes defined according to the generic structure: ##STR1## represent covalent carbon-carbon bonds when m does not=0; and wherein the lines ##STR2## do not represent any bonds when m=0; wherein R represents hydrogen or methyl; wherein p and q each represents 0 or 1 with the proviso that p=1 when q=0 and p=0 when q=1; wherein X and Z each represent one or more carbon atoms required to complete a bicyclo ring with the lines ##STR3## representing carbon-carbon bonds; wherein X and Z complete a phenyl moiety when the line ##STR4## represents no bond; wherein X and Z complete a cycloalkyl ring moiety with the lines ##STR5## represent carbon-carbon bonds and with the line ##STR6## representing no bond; and wherein when m is 0, X represents an alkylene moiety, processes for preparing same by means of reacting carbon monoxide and hydrogen with an unsaturated tertiary alcohol defined according to the structure: ##STR7## by means of an oxo reaction, and uses thereof in augmenting or enhancing the aroma of perfume compositions, colognes and perfumed articles (e.g., cosmetic powders, perfumed polymers, solid or liquid anionic, cationic, nonionic or zwitterionic detergents, fabric softener compositions, fabric softener articles, hair preparations, face creams, and the like).
摘要:
Described are mono-oxomethyl substituted polyhydrodimethanonaphthalene derivatives having the generic structure: ##STR1## wherein the dashed line represents a carbon-carbon single bond or a carbon-carbon double bond; wherein R.sub.1, R.sub.1 ', R.sub.1 ", R.sub.1 '", R.sub.1 "", R.sub.3, R.sub.5, R.sub.5 ', R.sub.5 ", R.sub.5 '", R.sub.5 "" and R.sub.6 represent hydrogen or methyl with the provisos:(i) at least four of R.sub.1, R.sub.1 ', R.sub.1 ", R.sub.1 '" and R.sub.1 "" are hydrogen; and (ii) at least four of R.sub.5, R.sub.5 ', R.sub.5 ", R.sub.5 '" and R.sub.5 "" represent hydrogen;and wherein Z represents one of the moieties:(i) carboxaldehyde having the structure: ##STR2## (ii) alkylene dioxy or dialkoxy methyl having the structure: ##STR3## (iii) hydroxy methyl having the structure: ##STR4## (iv) acetoxymethyl having the structure: ##STR5## and wherein R.sub.7 and R.sub.8 taken separately represent C.sub.1 -C.sub.4 lower alkyl or R.sub.7 and R.sub.8 taken together represent C.sub.2 -C.sub.4 alkylene; wherein the line represented by:[++++] is either (i) a carbon-carbon single bond when R.sub.7 and R.sub.8 taken together are C.sub.2 -C.sub.4 alkylene or (ii) no bond at all when R.sub.7 and R.sub.8 taken separately represent C.sub.1 -C.sub.4 lower alkyl. Also described are processes for preparing such mono-oxomethyl substituted polyhydrodimethanonaphthalene derivatives, and processes for using the above defined mono-oxomethyl substituted polyhydrodimethanonaphthalene derivatives for their organoleptic properties and compositions containing said mono-oxomethyl substituted polyhydrodimethanonaphthalene derivatives including perfumes, perfumed articles (such as solid or liquid anionic, cationic, nonionic or zwitterionic detergents, perfumed polymers, fabric softeners and cosmetic powders), foodstuffs, chewing gums, toothpastes, medicinal products, chewing tobaccos, smoking tobaccos and smoking tobacco articles.
摘要:
5,6-Methano-5,6-dihydroretinoids such as ethyl (E)-5,6-methano-5,6-dihydroretinoate and (E)-1-(4-carbethoxyphenyl)-2-methyl-4-(2,2,6-trimethylbicyclo[4.1.0]hept-1-yl)-1,3-butadiene are disclosed. These componds are useful as chemopreventive agents for inhibiting tumor promotion in epithelial cells and for treating nonmalignant skin disorders.
摘要:
A perfume composition is described, which contains at least one compound of bicyclo[2,2,2]octane and bicyclo[2,2,2]octene derivatives represented by the general formula (I) ##STR1## wherein the symbols are the same as defined hereinbefore.
摘要:
Described is the use in modifying, augmenting or enhancing the aroma or taste of smoking tobacco products of mono-oxomethyl substituted polyhydrodimethanonaphthalene derivatives having the generic structure: ##STR1## wherein the dashed line represents a carbon-carbon single bond or a carbon-carbon double bond; wherein R.sub.1, R.sub.1 ', R.sub.1 ", R.sub.1 '", R.sub.1 "", R.sub.3, R.sub.5, R.sub.5 ', R.sub.5 ", R.sub.5 '", R.sub.5 "" and R.sub.6 represent hydrogen or methyl with the provisos:(i) at least four of R.sub.1, R.sub.1 ', R.sub.1 ", R.sub.1 '" and R.sub.1 "" are hydrogen; and (ii) at least four of R.sub.5, R.sub.5 ', R.sub.5 ", R.sub.5 '" and R.sub.5 "" represent hydrogen;and wherein Z represents one of the moieties:(i) carboxaldehyde having the structure: ##STR2## (ii) alkylene dioxy or dialkoxy methyl having the structure: ##STR3## (iii) hydroxy methyl having the structure: ##STR4## (iv) acetoxymethyl having the structure: ##STR5## and wherein R.sub.7 and R.sub.8 taken separately represent C.sub.1 -C.sub.4 lower alkyl or R.sub.7 and R.sub.8 taken together represent C.sub.2 -C.sub.4 alkylene; wherein the line represented by:[++++]is either (i) a carbon-carbon single bond when R.sub.7 and R.sub.8 taken together are C.sub.2 -C.sub.4 alkylene or (ii) no bond at all when R.sub.7 and R.sub.8 taken separately represent C.sub.1 -C.sub.4 lower alkyl.
摘要:
Described is a process for augmenting or enhancing the aroma or taste of a foodstuff or chewing gum comprising the step of adding to a foodstuff or chewing gum an aroma augmenting or enhancing quantity of a product comprising a major proportion of compounds defined according to the structure: ##STR1##
摘要:
Described are compounds having the generic structure: ##STR1## wherein the dashed line represents a carbon-carbon single bond or a carbon-carbon double bond and wherein R.sub.2 is methyl or hydrogen; R.sub.6 is methyl or hydrogen; R.sub.1, R.sub.3 or R.sub.7 represent methyl or hydrogen, with the proviso that one of R.sub.1, R.sub.3 and R.sub.7 represents methyl and the other two of R.sub.1, R.sub.3 and R.sub.7 represent hydrogen; wherein R.sub.4 and R.sub.5 are the same or different and each represents hydrogen or C.sub.1 -C.sub.3 lower alkyl. In addition, organoleptic uses of such compounds are disclosed for augmenting or enhancing the aroma or taste of consumable materials including foodstuffs, chewing gums, toothpastes, medicinal products, chewing tobaccos, smoking tobaccos, smoking tobacco articles, perfumes, perfumed articles (such as liquid or solid anionic, cationic, nonionic or zwitterionic detergents, fabric softeners, dryer-added fabric softener articles, fabric brighteners and other perfumed articles and colognes). Also disclosed is a process for preparing such compounds according to the reaction scheme: ##STR2## wherein R" represents C.sub.1 -C.sub.3 alkyl; m+n=3 with the further proviso that m is 1 or 2 and n is 1 or 2; and wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 are as defined above.
摘要:
Disclosed herein are tricyclic and pentacyclic polyamines having a secondary or tertiary amine group on an amine functional substituent and at least one primary amine group on each of two amine functional substituents in the molecule. These compounds function excellently as non-visably carbonating epoxy curing agents and in addition unlike most other amines exhibit a mild amine odor.
摘要:
Pinanes substituted by a group X in the 3-position which group is formyl, or its alkyl-acetals or alkyl-hemiacetals, carboxylic acid, carboxylic acid chloride, carboxylic acid amide, hydroxymethyl or aminomethyl substituted in a specific manner at the nitrogen, the optical isomers of these compounds and a process for their manufacture by hydroformylation of .alpha.-pinene in the presence of rhodium catalysts, and conversion of the 3-formylpinane first produced into the above derivatives by conventional methods.