Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
T Hasegawa Co Ltd
Eneos Corp
Original Assignee
T Hasegawa Co Ltd
Nippon Petrochemicals Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by T Hasegawa Co Ltd, Nippon Petrochemicals Co LtdfiledCriticalT Hasegawa Co Ltd
Priority to JP16551287ApriorityCriticalpatent/JPS649902A/en
Publication of JPS649902ApublicationCriticalpatent/JPS649902A/en
Agricultural Chemicals And Associated Chemicals
(AREA)
Abstract
PURPOSE:To provide a mildew-proofing agent containing specific ketoesters as active components, exhibiting excellent mildew-proofing effect, having little restriction caused by its taste and smell, non-toxic to human body and useful for imparting mildew-proofing property to foods, drinks, cosmetics and other materials. CONSTITUTION:At least one kind of compound selected from ketoesters of formula (n is 0-2; R is 1-5C alkyl) (e.g. methyl or ethyl pyruvate, methyl or ethyl acetoacetate, methyl, ethyl, n-propyl, iso-propyl, n-butyl or isoamyl levulinate) is used as an active component of the objective mildew-proofing agent. The above compound of formula can be produced by conventional method. The compound has excellent growth-inhibiting effect against various kinds of mildews, exhibits the effect in gaseous state as well as liquid state and can be properly compounded to foods, drinks, cosmetics, etc., in the stage of raw material, production process or finished product.
Process for the production of 4,4,7-trimethyl-3,4,7,8,-tetrahydro-2 (6H)-naphthalenone, pure or mixed with 3,5,5-trimethyl-4-butenylidene-cyclohex-2-en-1-ones, products obtained from these and their uses as perfumes and aromas.