USA. Firmenich filed the patent number 20170283737 for pro-fragrance compounds.

Patents; Patent Application Titled "Pro-Fragrance Compounds" Published Online (USPTO 20170283737) 20 October 2017 Chemicals & Chemistry 2017 OCT 27 (VerticalNews) -- By a News Reporter-Staff News Editor at Chemicals & Chemistry -- According to news reporting originating from Washington, D.C., by VerticalNews journalists, a patent application by the inventors INDRADAS, Brinda (Plainsboro, NJ); VIRTUCIO, Gilbert (Plainsboro, NJ); WOMACK, Gary (Plainsboro, NJ), filed on June 23, 2017, was made available online on October 12, 2017. No assignee for this patent application has been made. Reporters obtained the following quote from the background information supplied by the inventors: "The perfumery industry has a particular interest in compounds which are capable of being released over a prolonged time and that can deliver an odoriferous effect. Various means to control the release of fragrant compounds from pro-fragrances or precursor compounds have been reported. For example compounds have been reported that deliver a fragrance after they are hydrolyzed or exposed to light. In many applications it is desirable to begin and control the release of a fragrance at a time when an article or material containing the precursor is exposed to for example ambient oxygen. Hence, oxidizable pro-fragrances are desirable that can deliver a fragrance over a prolonged period of time after exposure to air." In addition to obtaining background information on this patent application, VerticalNews editors also obtained the inventors' summary information for this patent application: "Provided herein is a compound of Formula (I) "##STR00004## "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 ester of formula R.sup.1OCH.dbd.O, or from a cinnamyl aldehyde of Formula (II) "##STR00005## "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 of formula R.sup.1OCH.dbd.O and a fragrant aryl aldehyde of Formula (III) "##STR00006## "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(C.dbd.O)CH(CH3).sub.2 wherein any two of R.sup.2 may form an optionally substituted 5 or 6 membered ring. "Also provided herein is a method of releasing a fragrant compound from a precursor compound wherein the fragrant compound is selected from the group consisting of R.sup.1OH, an aryl aldehyde of Formula (III) and a formate ester of formula R.sup.1OCH.dbd.O: "##STR00007## "by exposing a precursor compound of Formula (I): "##STR00008## "to an environment wherein the compound is oxidized and wherein: R.sup.2 is, independently, hydrogen atom, hydroxyl group, --O(C.dbd.O)CH(CH3).sub.2, optionally substituted C.sub.1-C.sub.6 alkyl group or C.sub.1-C.sub.6 alkoxy group, wherein any two of R.sup.2 may form an optionally substituted 5 or 6 membered ring; R.sup.1 represents a C.sub.1 to C.sub.20 hydrocarbon group derived from a fragrant alcohol of formula R.sup.1OH, a fragrant formate of formula R.sup.1OCH.dbd.O and an aryl aldehyde of Formula (III). "##STR00009##" For more information, see this patent application: INDRADAS, Brinda; VIRTUCIO, Gilbert; WOMACK, Gary. Pro-Fragrance Compounds. Filed June 23, 2017 and posted October 12, 2017. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220170283737%22.PGNR.&OS=DN/20170283737&RS=DN/20170283737 Keywords for this news article include: Patents, Aldehydes, Organic Chemicals. Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2017, NewsRx LLC