Results 11 to 20 of about 29,210 (204)

Synthesis of Trifluoromethylated Monoterpene Amino Alcohols

Molecules, 2022
For the first time, monoterpene trifluoromethylated β-hydroxy-benzyl-O-oximes were synthesized in 81–95% yields by nucleophilic addition of the Ruppert–Prakash reagent (TMSCF3) to the corresponding β-keto-benzyl-O-oximes based on (+)-nopinone ...
Polina A. Petrova, Denis V. Sudarikov, Larisa L. Frolova, Roman V. Rumyantcev, Svetlana A. Rubtsova, Aleksandr V. Kutchin   +5 more
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Diversity-Oriented Synthesis Based on the DPPP-Catalyzed Mixed Double-Michael Reactions of Electron-Deficient Acetylenes and β-Amino Alcohols

Molecules, 2011
In this study, we prepared oxizolidines through 1,3-bis(diphenylphosphino)-propane (DPPP)–catalyzed mixed double-Michael reactions of b-amino alcohols with electron-deficient acetylenes.
Yi Chiao Fan, Ohyun Kwon
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Comparative Investigation of Combined Metabolomics-Flavoromics during the Ripening of Mango (Mangifera indica L.) cv. ‘Nam Dok Mai Si Thong’ and ‘Nam Dok Mai No. 4’

Plants, 2021
A metabolomics-flavoromics approach was conducted to assess the micromolecules of ‘Nam Dok Mai Si Thong’ and ‘Nam Dok Mai No. 4’ mango cultivars from two seasons. During ripening, FAMEs, FFAs, fatty alcohols, sterols, and organic acids were dominant at 0–
Ye Lin Aung, Yaowapa Lorjaroenphon, Pinthip Rumpagaporn, Sudathip Sae-tan, Kriskamol Na Jom   +4 more
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A novel base-metal multifunctional catalyst for the synthesis of 2-amino-3-cyano-4H-chromenes by a multicomponent tandem oxidation process

Scientific Reports, 2022
A novel base-metal multifunctional nanomagnetic catalyst is prepared by the immobilization of tungstate anions onto γ-Fe2O3 supported with imidazolium moieties.
Farhad Omarzehi Chahkamali, Sara Sobhani, Jose Miguel Sansano   +2 more
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2-Oxiranyl-pyridines: Synthesis and Regioselective Epoxide Ring Openings with Chiral Amines as a Route to Chiral Ligands

Heteroatom Chemistry, 2019
New epoxides, derivatives of pyridine, 2,2′-bipyridine, and 1,10-phenanthroline, were synthesized from the respective α-methylazaarenes. The obtained racemic 2-oxiranyl-azaarenes along with styrene oxide and trans-stilbene oxide were submitted to the ...
Marzena Wosińska-Hrydczuk, Jacek Skarżewski   +1 more
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“Cut and Paste” Processes in the Search of Bioactive Products: One-Pot, Metal-free O-Radical Scission-Oxidation-Addition of C, N or P-Nucleophiles

Frontiers in Chemistry, 2022
Hypervalent iodine reagents have been applied in many metal-free, efficient synthesis of natural products and other bioactive compounds. In particular, treatment of alcohols, acetals and acids with hypervalent iodine reagents and iodine results in O ...
Marina Porras, Dácil Hernández, Concepción C. González, Alicia Boto   +3 more
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Cytotoxicity Studies of Eugenol Amino Alcohols Derivatives

Chemistry Proceedings, 2021
Eugenol is a phenylpropanoid displaying a wide range of biological activities. In this study, the cytotoxic activity of various β-amino alcohols derivatives from eugenol was evaluated in AGS (gastric cancer) and A549 (lung cancer) cell lines. The results
Cláudia Teixeira, Nuno F. S. Pinto, David M. Pereira, Renato B. Pereira, Maria José G. Fernandes, Elisabete M. S. Castanheira, António Gil Fortes, Maria Sameiro T. Gonçalves   +7 more
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Anhydrous Titanium(III) chloride as a New Lewis-Acid Catalyst for Ring Opening of Epoxides with Aromatic Amines

Natural Product Communications, 2007
Anhydrous titanium(III) chloride was found to be a simple and efficient Lewis acid catalyst for ring opening of epoxides at ambient temperature. The reaction proceeded smoothly with anilines as well as azide ion as nucleophiles to give the corresponding ...
Suchitra Bhatt, Sandip K. Nayak
doaj   +1 more source

Physicochemical Characteristics of Bambara Groundnut Speciality Malts and Extract

Molecules, 2022
Speciality malts and their extracts have physicochemical characteristics such as colour, flavour, and aroma sorted for in food production. Speciality malts used in food production are mostly produced from cereal grains. Hence, this study aimed to produce
Adeola Helen Adetokunboh, Anthony O. Obilana, Victoria A. Jideani   +2 more
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Progress on Aroma Components and Synthetic Regulation Mechanism of Horticultural Plants

Guangdong nongye kexue, 2023
The aroma of horticultural plants is produced by volatile organic compounds (VOCs) in their cells, mainly composed of esters, alcohols, aldehydes, ketones, ethers, terpenoids, alkanes and other substances, which is an important quality index ...
Chu YE, Bingchun XIE, Tao LI, Xiaowan XU, Xiaomei XU, Hengming WANG, Zhiming WU, Zhou HENG   +7 more
doaj   +1 more source