One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, Safety of Benzo[b]furan-2-carboxaldehyde, such as the rate of change in the concentration of reactants or products with time.In a article, mentioned the application of 4265-16-1, Name is Benzo[b]furan-2-carboxaldehyde, molecular formula is C9H6O2
We have developed a microwave-assisted catalytic Wittig reaction. In this paper, we give full account of the scope and limitations of this reaction. A screening of various commercially available phosphine oxides as precatalysts revealed Bu3P=O to be the most promising candidate. We tested 10 silanes for the in situ reduction of the phosphine oxide to generate Bu3P as the actual catalyst. Different epoxides were tested as masked bases. In this context, cyclohexene oxide as well as butylene oxide proved to be suitable. The reaction could be carried out at 125 C, but higher yields and E/Z selectivities were obtained at 150 C. Under the optimised reaction conditions, more than 40 examples for the conversion of various aldehydes into the corresponding alkenes are reported. The products were obtained in yields of up to 88 with high E selectivities. Moreover, we also describe the further screening of several chiral phosphines as catalysts for the microwave-assisted enantioselective catalytic Wittig reaction. The scope and limitations of the microwave-assisted catalytic Wittig reaction have been evaluated with respect to the catalyst, silane, solvent, reaction conditions, and substrates.
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Reference：
Benzofuran – Wikipedia,
Benzofuran | C8H853O – PubChem