Results 61 to 70 of about 2,586 (168)
Insecticidal Effects of Monoterpenes on Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae)
Journal of Applied Botany and Food Quality, 2013 Twenty eight monoterpenes including monoterpene hydrocarbons and oxygenated monoterpenes (borneol, borynl acetate, camphene, camphor, 3-carene, carvone, 1,8-cineole, citronellal, β-citronellene, β-citronellol, dihydrocarvone, fenchol, fenchone, geranyl ...
Erol Yildirim +2 more
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Frontiers in Pharmacology, 2018 Schistosomiasis is an important parasitic disease caused by Schistosoma mansoni, an intravascular trematode. Schistosomiasis treatment is limited to just one drug, Praziquantel (PZQ).
Karina A. Feitosa +12 more
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Variability of chemical traits of peppermint (Mentha x piperita L.) [PDF]
Selekcija i Semenarstvo, 2000 The aim of this contribution was to establish variability and relationship between selected qualitative properties of mint (Mentha x piperita L.). During two year period, the content of the essential oil, as well as its major constituents (menthol ...
Dražić Slobodan, Ristić Mihajlo
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Zeitschrift für Naturforschung B, 1988 Abstract 1,3-Dioxin-4-ones from Ketones Onium salt and acid catalyzed addition of di-ketene to (-)-menthone gives improved yields of 2 and 3. Excess of diketene leads to diastereomeric mixtures of compounds 4 and 6 from menthone and menthol, respectively.
Eckehard V. Dehmlow, Arthur Sleegers
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ChemistryOpen, 2019 For the first time, the oxidative dehydrogenation of (−)‐menthol to (−)‐menthone and (+)‐isomenthone in a marketable quality was carried out in a continuous gas phase reactor as a sustainable process using molecular oxygen as green oxidant and solid ...
Dr. Anna Kulik +5 more
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Comparative Chemical Analysis of and and a Fast Assessment of Commercial Peppermint Teas
Natural Product Communications, 2016 The hydrodistilled essential oils and volatile compounds (by static headspaces technique) of Mentha piperita L. and M. spicata L. were characterized by GC-MS.
Mihaela Buleandra +6 more
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Antifungal potential and biochemical effects of monoterpenes and phenylpropenes on plant
Plant Protection Science, 2018 To develop new natural fungicides, six monoterpenes and two phenylpropenes were tested for their antifungal activity against eight plant pathogenic fungi.
Gehan I. Kh. Marei +1 more
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Dichlorination of (−)-Menthone and the Configurations and Conformations of the Products
Nippon kagaku zassi, 1971 (一)-メントン〔1〕に2molの塩素ガスまたは塩化スルホニルを作用させて, mp93.5～94°Cの〔2〕, mp71～72°Cの〔3〕, mp55～56°Cの〔4〕およびmp51～52°Cの〔5〕の4種の2, 4-ジクロルメントンを得た。これら異性体のIRスペクトル, NMRスペクトルおよびORDを測定し,それぞれ対応する立体配置を決め,その立体配座についてもそれぞれ解析した。 塩素化剤として塩化スルホニルを使用した場合には,生成物は主として塩素がトランスに置換した異性体〔4〕および〔5〕であった。また塩素ガスを使用すると,低温(40°C以下)では主としてシス異性体〔2〕および〔3〕が,高温(80°C)では主としてトランス異性体が生成する ...
Fujiko YASUHARA +2 more
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Synthesis of Menthone from Methylheptenone
Journal of Japan Oil Chemists' Society, 1985 This paper describes the synthesis of menthones (8) from methylheptenone (6-methyl-5-hepten-2-one). The synthetic route is shown in Scheme-1. The pyrolysis and thermocyclization reaction of 4-isopropyl-1-methyl-5-oxohexyl acetate (2), obtained by a radical addition reaction of 1, 5-dimethyl-4-hexenyl acetate (1) with acetaldehyde, gave (8) and ...
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HeliyonPectinolytic bacteria cause bacterial soft rot of potato tubers. The most significant losses occur during storage. The efficacy of essential oil (EO) components carvacrol, cinnamaldehyde, d-carvone, l-menthone, R-(+)-limonene and thymol was tested ...
Jana Víchová +3 more
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