نتایج جستجو برای: 2 alkyl benzoxazoles

تعداد نتایج: 2535025  

Journal: :Dalton transactions 2008
Khamphee Phomphrai Supathana Pracha Phenphak Phonjanthuek Manat Pohmakotr

Alkyl (S)-lactate and alkyl (S,S)-lactyllactate were rapidly and conveniently synthesized from L-lactide using Group 1 and 2 metal complexes as catalyst in alcohol.

Journal: :Chemistry, an Asian journal 2011
Yang S Tran Tioga J Martin Ohyun Kwon

From our investigations on phosphine-catalyzed [4+2] annulations between α-alkyl allenoates and activated olefins for the synthesis of cyclohexenes, we discovered a hexamethylphosphorous triamide (HMPT)-catalyzed [4+2] reaction between α-alkyl allenoates 1 and arylidene malonates or arylidene cyanoacetates 2 that provides highly functionalized cyclohexenes 3 and 4 in synthetically useful yields...

Journal: :international journal of bio-inorganic hybrid nanomaterials 2015
a.s. shahvelayati m. sabbaghan s. banihashem

a simple, green synthesis of n-alkyl-3-acetyl-2-methylpyrrole derivatives using zno nanoparticles from the three component reaction of aliphatic amines, acetylacetone (as a 1,3-dicarbonyl compound) and α-haloketones under solvent-free condition is described.

Journal: :Blood 1984
D R Hoffman J Hajdu F Snyder

A series of 11 alkyl-phospholipid analogs, structurally related to platelet activating factor (L-PAF), were analyzed for cytotoxic activity in human leukemic (HL-60) cells, human polymorphonuclear neutrophils, and Detroit 551 human skin fibroblasts. The order of selectiveness of the analogs in their cytotoxic response toward HL-60 cells in comparison to neutrophils is 1-alkyl-2-acetamide-GPC gr...

Journal: :Molecules 2015
Wen-Chang Chen Veerababurao Kavala Yu-Hsuan Shih Yu-Hsuan Wang Chun-Wei Kuo Tang-Hao Yang Chia-Yu Huang Hao-Hsiang Chiu Ching-Fa Yao

An efficient and straight forward procedure for the syntheses of bicyclic isoxazole/isoxazoline derivatives from the corresponding dimethyl-2-(2-nitro-1-aryl/alkyl)-2-(prop-2-yn-1yl)malonates or dimethyl 2-allyl-2-(2-nitro-1-aryl/alkyl ethyl)malonate is described. High yields and simple operations are important features of this methodology.

Journal: :Synthesis 2022

Abstract Pd-catalyzed direct arylation of 2-alkylthiazoles is a well-known reaction affording the corresponding 2-alkyl-5-arylthiazoles in very high yields. Conversely, reactivity 2-alkoxythiazoles has not been described yet. Herein, we report conditions for regioselective C5-arylation 2-alkoxythiazoles. Moreover, also found leading to 3-alkyl-5-arylthiazol-2(3H)-ones via one-pot with an O- N-a...

Journal: :Journal of Solution Chemistry 2021

Abstract In the present study solution and coordination chemistry of copper(II)–alkyl- N -iminodiacetate systems are studied in aqueous by potentiometry, using ion selective copper pH electrodes, EXAFS (extended X-ray absorption fine structure) dye probe molecular spectrophotometry. Alkyl- -iminodiacetates with varying alkyl chain length, methyl (CH 3 –), n -hexyl (C 6 H 13 -dodecyl 12 25 –) -o...

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