Silver-containing microemulsion as a high-efficient and recyclable catalytic system for hydration of alkynes was written by Dong, Qizhi;Li, Ningbo;Qiu, Renhua;Wang, Jinying;Guo, Cancheng;Xu, Xinhua. And the article was included in Journal of Organometallic Chemistry in 2015.Safety of 1-Methoxy-4-((4-propylphenyl)ethynyl)benzene This article mentions the following:
A silver-catalyzed highly efficient and regioselective synthesis of ketones from a wide range of alkynes is described. The reaction is dramatically accelerated by its performance in aqueous emulsion, which is self-assembled by the addition of silver perfluorooctanesulfonate and perfluorooctanesulfonic acid (PFOS) to water. The reaction is conducted under convenient conditions with broad substrate scope, including a variety of aromatic and aliphatic terminal alkynes and internal alkynes. Furthermore, the air- and light-stable silver catalytic microemulsion can be reused for 4 times with minimal change in catalytic efficiency. In the experiment, the researchers used many compounds, for example, 1-Methoxy-4-((4-propylphenyl)ethynyl)benzene (cas: 39969-26-1Safety of 1-Methoxy-4-((4-propylphenyl)ethynyl)benzene).
1-Methoxy-4-((4-propylphenyl)ethynyl)benzene (cas: 39969-26-1) belongs to ethers. Of all the functional groups, ethers are the least reactive ones. Ether bonds are quite stable towards bases, oxidizing agents and reducing agents. Ethers feature bent C閳ユ彊閳ユ弲 linkages. In dimethyl ether, the bond angle is 111鎺?and C閳ユ彊 distances are 141 pm. The barrier to rotation about the C閳ユ彊 bonds is low. The bonding of oxygen in ethers, alcohols, and water is similar. In the language of valence bond theory, the hybridization at oxygen is sp3.Safety of 1-Methoxy-4-((4-propylphenyl)ethynyl)benzene
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem