Results 21 to 30 of about 11,527 (248)

Isocyanide Reactions Toward the Synthesis of 3-(Oxazol-5-yl)Quinoline-2-Carboxamides and 5-(2-Tosylquinolin-3-yl)Oxazole

Frontiers in Chemistry, 2019
A palladium-catalyzed three-component reaction between 5-(2-chloroquinolin-3-yl) oxazoles, isocyanides, and water to yield 3-(oxazol-5-yl)quinoline-2-carboxamides is described.
Zahra Yasaei, Zeinab Mohammadpour, Morteza Shiri, Zahra Tanbakouchian, Shima Fazelzadeh   +4 more
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Alkoxyallene‐Based LANCA Three‐Component Synthesis of 1,2‐Diketones, Quinoxalines, and Unique Isoindenone Dimers and a Computational Study of the Isoindenone Dimerization [PDF]

, 2020
A series of β‐alkoxy‐β‐ketoenamides was prepared by the well‐established LANCA three‐component reaction of lithiated 1‐(2‐trimethylsilylethoxy)‐substituted allenes, nitriles, and α,β‐unsaturated carboxylic acids.
Bera M. K., Holland J. M., Lechel T., Lechel T., Zimmer R., Zimmer R., Zimmer R.   +6 more
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Enantiomeric Separation of New Chiral Azole Compounds

Molecules, 2021
Twelve new azole compounds were synthesized through an ene reaction involving methylidene heterocycles and phenylmaleimide, producing four oxazoles, five thiazoles, and one pyridine derivative, and ethyl glyoxylate for an oxazole and a thiazole compound.
Marziyeh E. Kenari, Joshua I. Putman, Ravi P. Singh, Brandon B. Fulton, Huy Phan, Reem K. Haimour, Key Tse, Alain Berthod, Carl J. Lovely, Daniel W. Armstrong   +9 more
doaj   +1 more source

Thieno-Thiazolostilbenes, Thienobenzo-Thiazoles, and Naphtho-Oxazoles: Computational Study and Cholinesterase Inhibitory Activity

Molecules, 2023
Naphtho-triazoles and thienobenzo-triazoles have so far proven to be very potent inhibitors of the enzyme butyrylcholinesterase (BChE). Based on these results, in this work, new thienobenzo-thiazoles were designed and synthesized, and their potential ...
Milena Mlakić, Ema Đurčević, Ilijana Odak, Danijela Barić, Ines Juričević, Ivana Šagud, Franko Burčul, Zlata Lasić, Željko Marinić, Irena Škorić   +9 more
doaj   +1 more source

Transition metal-mediated synthesis of oxazoles [PDF]

, 2014
Among the synthetic methods for the formation of the oxazole ring, transition metal-mediated protocols are the most attractive in terms of selectivity, efficiency and mildness of reaction conditions.
Bresciani, Stefano, Tomkinson, Nicholas C. O.   +1 more
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Highly selective electrochemical hydrogenation of alkynes: Rapid construction of mechanochromic materials [PDF]

, 2019
Electrochemical hydrogenation has emerged as an environmentally benign and operationally simple alternative to traditional catalytic reduction of organic compounds.
Ge, Haibo, Li, Bijin
core   +1 more source

Regioselective Formation of 2,5-Disubstituted Oxazoles Via Copper(I)-Catalyzed Cycloaddition of Acyl Azides and 1-Alkynes [PDF]

, 2011
The reaction of 1-alkynes with acylazides in the presence of [Tpm*,BrCu(NCMe)]BF4 (Tpm*,Br = tris(3,5-dimethyl-4-bromopyrazolyl)methane) as the catalyst provides 2,5-oxazoles in moderate to high yields.
Cano Rico, Israel, Nicasio Jaramillo, María Carmen, Pérez Romero, Pedro José, Álvarez, Eleuterio   +3 more
core   +1 more source

Development of a method for the synthesis of 2,4,5-trisubstituted oxazoles composed of carboxylic acid, amino acid, and boronic acid

Beilstein Journal of Organic Chemistry, 2017
A novel method for the synthesis of trisubstituted oxazoles via a one-pot oxazole synthesis/Suzuki–Miyaura coupling sequence has been developed.
Kohei Yamada, Naoto Kamimura, Munetaka Kunishima   +2 more
doaj   +1 more source

Sir John Cornforth AC CBE FRS: his synthetic work [PDF]

, 2015
Sir John Cornforth’s work on the synthesis of cholesterol and penicillamine, on the chemistry of oxazoles, the stereochemistry of the synthesis of alkenes, the synthesis of abscisic acid and of dibenzophospholes as mimics of enzyme action, is ...
Abraham E.P., Abraham E.P., Abraham E.P., Callow R.K., Cardwell H.M.E., Cornforth J.W., Cornforth J.W., Cornforth J.W., Cornforth J.W., Cornforth J.W., Cornforth J.W., Cornforth J.W., Cornforth J.W., Cornforth J.W., James R. Hanson, Rupert Purchase   +15 more
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Synthesis of 1,3-Oxazoles via Van Leusen Reaction in a Pressure Reactor and Preliminary Studies of Cations Recognition

Proceedings, 2019
Six 1,3-oxazoles were synthetized in moderate to good yields by Van Leusen reaction in a pressure reactor. The methodology allowed to decrease the reaction times reported in the literature from hours to 20 min.
Verónica G. García-Ramírez, Claudia Contreras-Celedón, Gabriela Rodriguez-García, Luis Chacón-García, Carlos J. Cortes-García   +4 more
doaj   +1 more source