摘要:
This invention provides smoking compositions which contain a novel .beta.-hydroxycarboxylate flavorant-release additive. Under cigarette smoking conditions, a combustible filler and/or paper wrapper additive such as calcium bis(2,2-diethyl-3-hydroxy-4-phenylmethylenedecanoate) pyrolyzes and releases .alpha.-hexylcinnamaldehyde as a volatile flavorant component of the cigarette smoke.
摘要:
This invention provides smoking compositions which contain a novel vanillin flavorant-release additive.Under cigarette smoking conditions, a combustible filler and/or paper wrapper additive such as ethyl 3-(4'-butoxycarbonyloxy-3'-methoxyphenyl)-3-hydroxy-2-phenylpropanoate pyrolyzes into vanillin and ethyl phenylacetate flavorants as volatile components of the cigarette smoke.A present invention flavorant-release additive is represented by the formula: ##STR1## where R is methyl or ethyl; R.sup.1 is hydrogen or a C.sub.1 -C.sub.4 alkyl substituent; R.sup.2 is hydrogen or a C.sub.1 -C.sub.4 alkyl or C.sub.6 -C.sub.10 aromatic substituent; and R.sup.3 is a C.sub.1 -C.sub.4 alkyl or C.sub.6 -C.sub.10 aromatic substituent.
摘要:
This invention provides smoking compositions which contain a novel vanillin flavorant-release additive.A cigarette smoking product comprising (1) a combustible filler selected from natural tobacco, reconstituted tobacco and tobacco substitutes, and (2) a paper wrapper which has incorporated therein a flavorant-release additive corresponding to the formula: ##STR1## where R is methyl or ethyl.
摘要:
This invention provides novel .beta.-hydroxyesters which have utility as a flavorant-release additive in smoking compositions.Under cigarette smoking conditions, a combustible filler and/or paper wrapper additive such as ethyl 3-hydroxy-3-(4'-hydroxy-3'-methoxyphenyl)-2-phenylpropanoate pyrolyzes into vanillin and ethyl phenylacetate flavorants as volatile components of the cigarette smoke.
摘要:
This invention provides novel vanillyl 5-hydroxyesters, and smoking compositions which contain a vanillyl 5-hydroxyester as a flavorant-release additive.Under cigarette smoking conditions, a combustible filler and/or paper wrapper additive such as 4'-formyl-2'-methoxyphenyl 5-hydroxy-2-isopropylhexanoate pyrolyzes into vanillin and 2-isopropyl-5-hydroxyhexanoic acid delta lactone flavorants as volatile components of the cigarette smoke.
摘要:
This invention provides novel heterocyclic ester compounds. This invention further provides smoking compositions which contain an invention heterocyclic ester as a flavorant-release additive, as illustrated by the following structure: ##STR1## Under normal cigarette smoking conditions, tetramethylpyrazine and an olefin are released as pyrolysis products, and they enhance the flavor and aroma of the mainstream and sidestream smoke.
摘要:
This invention provides smoking compositions which contain a tetracarbonate ester compound as a flavorant additive.In one of its embodiments, this invention provides tobacco compositions which contain a tetracarbonate ester flavorant additive such as 2,5-bis(menthoxycarbonyloxymethylene)-3,6-bis(menthoxycarbonyloxy)-1,4-dioxane: ##STR1## Under cigarette smoking conditions the above illustrated tetracarbonate ester pyrolyzes into menthol and other products which enhance the flavor of the mainstream smoke and the aroma of sidestream smoke.
摘要:
This invention provides smoking compositions which contain a monocarbonate ester compound as a flavorant additive.In one of its embodiments, this invention provides tobacco compositions which contain a monocarbonate ester flavorant additive such as 1-phenoxycarbonyloxy-3-propanol. ##STR1## Under cigarette smoking conditions the above illustrated monocarbonate ester pyrolyzes into phenol and other products which flavor the mainstream and sidestream smoke.
摘要:
An acidic aqueous medium for contacting and purifying a gas-phase stream by oxidation of a contaminant contained therein. The medium comprises an aqueous medium which contains redox-effective quantities of (1) silver(I) oxidation catalyst, (2) hydrogen peroxide oxidant, (3) silver metal-reoxidation co-catalyst ingredient which forms a cyclic complex with the hydrogen peroxide oxidant, and (4) oxidation-resistant acid. The acidic aqueous medium provides an integrated functionality of components (1) through (4) for the efficient cascade oxidation of a contaminant containing gas stream, and the continuous regeneration of the reduced silver metal catalyst back to the silver(I) oxidation state.
摘要:
This invention provides smoking compositions which contain a dicarbonate ester compound as a flavorant additive.In one of its embodiments, this invention provides tobacco compositions which contain a dicarbonate ester flavorant additive such as 2,5-bis(2-methoxyphenoxycarbonyloxy)-1,4-dioxane: ##STR1## Under cigarette smoking conditions the above illustrated dicarbonate ester pyrolyzes into guaiacol and other products which enhance the flavor of the mainstream smoke and the aroma of sidestream smoke.