Results 41 to 50 of about 6,678 (255)

Preparation of isomenthone from menthone.

Agricultural and Biological Chemistry, 1989
The preparation of naturaly but rarely occuring (+)-isomenthone from (−)-menthone is described.
Lim Yao Liang, Tomohiro Habara, Mikiharu Doi, Yoshihiro Shuto, Yoshiro Kinoshita   +4 more
openaire   +2 more sources

Polycyclic N-Hetero Compounds. XL. Reaction of Cyclic Ketones with Trisformylaminomethane [PDF]

, 1991
Reactions of cyclic ketones such as α-tetralone, 1,3-cyclohexanedione, or naphthalenedione with formamide or trisformylaminomethane (TFAM) have shown to form polyclic fused pyrimidines by us.
Hirota, Kazuhiro, Hirota, Takashi, Iwado, Akimasa, Sasaki, Kenji   +3 more
core   +1 more source

Effect of Harvesting Time and Drying Methods on the Quantity and Quality of the Essential Oil of Peppermint Medicinal Plant (Mentha piperita) [PDF]

Majallah-i ̒Ulum-i Bāghbānī
Introduction   Mint has been used both as a medicinal and aromatic plant since ancient times. Peppermint volatile oil is one of the most important essential oils and has strong antimicrobial activity.
Homeyra Hatami, GhorbanAli Rassam, Alireza Dadkhah   +2 more
doaj   +1 more source

Stereochemical Studies on a New Ciramadol Analogue by NMR-Spectroscopy [PDF]

, 1994
The absol. configuration of a Ciramadol analogue obtained from (-)-menthone is established by 'H-NMR-. simulated NMR-, COSY-90-, and NOEmeasurements. The final compound 2-(a-1 -pyrrolidino)benzy 1-4-isopropyl- 1 -methyl-cyclohexan-3-one (4b), e.g..
Akgün, H., Burgemeister, Thomas, Ertan, M., Wiegrebe, Wolfgang, Özarslan, Ö.   +4 more
core  

Electronic Smoking Devices Among University Students: Usage Patterns and Chemical Composition of Inhaled Substances

Analytical Science Advances, Volume 7, Issue 1, June 2026.
ABSTRACT This study investigated the prevalence of electronic smoking device (ESD) use and its associated behavioural and chemical risks among university students in Bahia, Brazil. A cross‐sectional survey was conducted with 355 students from public and private institutions through an online questionnaire between April and May 2023. Among participants,
Eduard F. Valenzuela, Raffael Silva Santos Almeida, Ivana Ferreira Simões, Aline Gonçalves Miranda, Magno Oliveira Ramos, Roberto Rodrigues Bandeira Tosta Maciel, Fernanda Warken Rosa, Aníbal de Freitas Santos Júnior   +7 more
wiley   +1 more source

Chemical Characterization of the Essential Oil Compositions of Mentha spicata and M. longifolia ssp. cyprica from the Mediterranean Basin and Multivariate Statistical Analyses

Molecules
This present study aims to characterize the essential oil compositions of the aerial parts of M. spicata L. and endemic M. longifolia ssp. cyprica (Heinr. Braun) Harley by using GC-FID and GC/MS analyses simultaneously.
Hasan İsfendiyaroğlu, Azmi Hanoğlu, Duygu Yiğit Hanoğlu, Fehmi B. Alkaş, Kemal Hüsnü Can Başer, Dudu Özkum Yavuz   +5 more
doaj   +1 more source

Menthone Exerts its Antimicrobial Activity Against Methicillin Resistant Staphylococcus aureus by Affecting Cell Membrane Properties and Lipid Profile

Drug Design, Development and Therapy, 2023
Wenming Zhao,1,2,* Chengwei Yang,1,* Ning Zhang,3,* Yuanyuan Peng,3 Ying Ma,3 Keru Gu,3 Xia Liu,3 Xiaohui Liu,3 Xijian Liu,3 Yumin Liu,4 Songkai Li,1 Linjing Zhao3 1Department of Spinal Surgery, The 940th Hospital of Joint Logistics Support ...
Zhao W, Yang C, Zhang N, Peng Y, Ma Y, Gu K, Liu X, Liu X, Liu X, Liu Y, Li S, Zhao L   +11 more
doaj  

Chemical Composition of the Essential Oil of the Endemic Species Micromeria frivaldszkyana (Degen) Velen.

Molecules, 2019
Micromeria frivaldszkyana is an endemic species found only in Bulgaria. Its essential oil (EO) composition is unknown. This study assessed the EO yield and composition of M.
Valtcho D. Zheljazkov, Giuseppe Micalizzi, Ivanka Semerdjieva, Luigi Mondello   +3 more
doaj   +1 more source

Conversion and Hydrothermal Decomposition of Major Components of Mint Essential Oil by Small-Scale Subcritical Water Treatment

Molecules, 2020
Thermal stabilities of four major components (l-menthol, l-menthone, piperitone, and l-menthyl acetate) of Japanese mint essential oil were evaluated via subcritical water treatment.
Tai-Ying Chiou, Shiori Nomura, Masaaki Konishi, Chien-Sen Liao, Yasutaka Shimotori, Miki Murata, Naofumi Ohtsu, Yoshihito Kohari, Wei-Ju Lee, Tsung-Yu Tsai, Yuichi Nagata, Tohru Saitoh   +11 more
doaj   +1 more source

Present and future potential of plant-derived products to control arthropods of veterinary and medical significance [PDF]

, 2014
The use of synthetic pesticides and repellents to target pests of veterinary and medical significance is becoming increasingly problematic. One alternative approach employs the bioactive attributes of plant-derived products (PDPs). These are particularly
Finn, Robert, George, David, Graham, Kirsty, Sparagano, Olivier   +3 more
core   +1 more source