122-95-2Relevant articles and documents
Tuning the moisture and thermal stability of metal-organic frameworks through incorporation of pendant hydrophobic groups
Makal, Trevor A.,Wang, Xuan,Zhou, Hong-Cai
, p. 4760 - 4768 (2013)
An isostructural series of NbO-type porous metal-organic frameworks (MOFs) with different dialkoxy-substituents of formula Cu2(TPTC-OR) (TPTC-OR = 2′,5′-di{alkyl}oxy-[1,1′:4′,1″-terphenyl]-3, 3″,5,5″-tetracarboxylate, R = Me, Et, nPr, nHex) has been synthesized and characterized. The moisture stability of the materials has been evaluated, and a new superhydrophobic porous MOF has been identified. The relationship between pendant side chain length and thermal stability has been analyzed by in situ synchrotron powder X-ray diffraction, showing decreased thermal stability as the side chain length is increased, contradictory to thermogravimetric decomposition studies. Additionally, the four materials exhibit moderate Brunauer-Emmett-Teller (BET) and Langmuir surface areas (1127-1396 m2 g-1 and 1414-1658 m2 g -1) and H2 capacity up to 1.9 wt % at 77 K and 1 bar.
Synthesis of p-Di[1-13C]ethoxybenzene from [1-13C]iodoethane with high labeling efficiency
Iida, Katsumi,Kajiwara, Masahiro
, p. 235 - 241 (1998)
p-Di[1-13C]ethoxybenzene was synthesized in high yield and with high labeling efficiency from hydroquinone and [1-13C]iodoethane in the presence of a base in dry acetone. Some p-[1-13C]ethoxyphenol was also formed, from which further p-di[1-13C]ethoxybenzene could be synthesized.
Double-triazole substituted ethoxy compound and its preparation method and application
-
Paragraph 0032-0034, (2017/08/25)
The invention discloses a double-triazole substituted ethoxy benzene compound and a preparation method and application thereof. The organic compound is prepared by conducting reflux reaction on 1,4-bis (bromomethyl)-2,5-diethoxy benzene with 3-(1H-1,2,4-triazole-1-yl) propionitrile in acetonitrile, and then conducting basic hydrolysis. The preparation method of the present invention has the characteristics of simple operation, low production cost and little environmental pollution, and is applicable to large scale industrialization production. The compound prepared by the invention can be applied to the research on bactericide. The experimental results confirm that the double-triazole substituted ethoxy benzene compound has certain sterilization activity on Escherichia coli and Staphylococcus aureus, especially significant bactericidal activity against Staphylococcus aureus.
Practical Ligand-Free Copper-Catalysed Short-Chain Alkoxylation of Unactivated Aryl Bromides
Guo, Ying,Fan, Xue-Min,Nie, Min,Liu, Hong-Wei,Liao, Dao-Hua,Pan, Xian-Dao,Ji, Ya-Fei
, p. 4744 - 4755 (2015/08/03)
An efficient and practical short-chain alkoxylation of unactivated aryl bromides has been developed with special attention focussed on the applicability of the reaction. Sodium alkoxide is used as the nucleophile, and the corresponding alcohol as the solvent. The reaction requires neither precious metals nor organic ligands. It uses a catalytic system consisting of copper(I) bromide as a catalyst, the corresponding alkyl formate as a noncontaminating cocatalyst, and lithium chloride as an additive. A wide range of substrates and test cases highlight the synthetic utility of the approach. Considering the commercial accessibility and affordability of the feedstocks, this protocol shows promise as a new alternative for the sustainable preparation of aryl alkyl ethers.