Results 31 to 40 of about 30,773 (318)
The Fever Tree: from Malaria to Neurological Diseases
Toxins, 2018 This article describes the discovery and use of the South American cinchona bark and its main therapeutic (and toxic) alkaloids, quinine and quinidine.
Sara Eyal
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Cuadernos de investigación UNED, 2022 Introducción: El 8 de enero del 2009 sufrió el terremoto de Cinchona, en Alajuela, Costa Rica. Desde dos años antes del terremoto, operaba en la zona una red de cámaras automáticas en el bosque pluvial premontano, lo que permitió conocer la abundancia ...
Juan Carlos Villegas Arguedas
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Amide-Based Cinchona Alkaloids as Phase-Transfer Catalysts: Synthesis and Potential Application.
Organic Letters, 2019 Herein we present a library of simple amide derivatives of Cinchona alkaloids in the form of quaternary ammonium salts. The obtained derivatives can be generated very easily and efficiently from inexpensive and commercially available substrates.
Maciej Majdecki +2 more
semanticscholar +1 more source
The Diarylprolinol Silyl Ethers: After 20 Years Still Opening New Doors in Asymmetric Catalysis
Angewandte Chemie, Volume 138, Issue 11, 9 March 2026.Catalysis Rules! The year 2025 marks the 20th anniversary of diarylprolinol silyl ethers in asymmetric organocatalysis. During the first decade after their discovery, these catalysts have been established as one of the most versatile tools in aminocatalysis. Although now considered mature, recent years have witnessed renewed innovation.
Enrico Marcantonio +2 more
wiley +2 more sources
Cinchona amazonica Standl. (Rubiaceae) no estado do Acre, Brasil
Boletim do Museu Paraense Emílio Goeldi. Ciências Naturais, 2006 O presente estudo trata da dendrologia, distribuição geográfica e status de conservação de Cinchona amazonica Standl., plantas de interesse medicinal que ocorrem no estado do Acre, Brasil.
Percy Amilcar Zevallos Pollito +1 more
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Hydrazones as Singular Reagents in Asymmetric Organocatalysis [PDF]
, 2016 This Minireview summarizes strategies and developments regarding the use of hydrazones as reagents in asymmetric organocatalysis, their distinct roles in nucleophile–electrophile, cycloaddition, and cyclization reactions.
Fernández Fernández, Rosario Fátima +4 more
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Tabloid brand medicine chests: selling health and hygiene for the British tropical colonies [PDF]
, 2008 During the late Victorian and early Edwardian period a surge of commodities went on display and were advertised throughout the empire. One such commodity was the Burroughs Wellcome & Co. (BWC) Tabloid brand medicine chest.
Johnson, R.
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Journal of the American Chemical Society, 2018 Cinchona alkaloid-derived chiral catalysts represent one of the most widely applied classes of organocatalysts, which have been successfully utilized in the promotion of a wide variety of asymmetric reactions.
Bin Hu +5 more
semanticscholar +1 more source
Menilik Helopeltis spp. Hama Penting Komoditas Perkebunan di Indonesia
Agriprima: Journal of Applied Agricultural SciencesHelopeltis spp. (Hemiptera), merupakan salah satu hama utama pada beberapa tanaman buah dan komoditas perkebunan. Di Indonesia, Helopeltis diketahui menyerang tanaman teh, kakao, kina, jambu mete, lada, dan hama minor pada tanaman kehutanan. Tidak hanya
Gina Nur'aini Buchory +2 more
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Continuous flow enantioselective processes catalysed by cinchona alkaloid derivatives
Tetrahedron Green Chem, 2023 Without a doubt, asymmetric catalysis has been significantly enriched by the introduction of cinchona alkaloid derivatives. Moreover, such methods have been further enabled when used in conjunction with continuous flow systems.Besides being used in flow ...
Elisabete P. Carreiro +3 more
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