Formation and Trapping of Benzyne

Abstract

Over the decades, several scientists have given a best representation for the structure of benzene. In this present study, Formation of benzyne and trapping achieving with by using furan and tetraphenylcyclopentadienone. The melting point of the crystalline compound was determined and the compound was analysed by InfraRed (IR) , GasChromatography-Mass Spectroscopy(GC-MS) , NMR (1 H). IR confirmed that peak, might be due to carbonyl group present in the compound. According FTIR spectrum, strong and broad peaks were predicting may be due to atmospheric carbon dioxide and clearly showing aromatic CC at 1688.6 cm-1 and 1597.1 cm-1. GC-MS spectra results proving, all the compounds molecular weight is almost nearer to reference spectra. NMR spectra can explaining the structure of the compound by showing chemical shift of functional groups and correlating with the reference. Finally, concluded formation and trapping of benzyne producing adducts such as 1,4-dihydronaphthalene-1,4-endoxide and 1, 2, 3, 4-tetraphenylnaphthalene compounds identifying in dark brown colour and crystalline in nature. The obtained solid products results are compared with that of the literature showing there is no mean deviation in their melting points.

Lignin–carbohydrate complexes: properties, applications, analyses, and methods of extraction: a review

“…The nuclear magnetic resonance spectroscopy (NMR) technology is widely employed for analysis of the chemical structure and composition of biomass [ 76 , 140 , 141 ]. The main principle of NMR is based on the fact that all atomic nuclei are electrically charged and many of them have a spin moment, which is the result of unpaired spins of the protons and neutrons generating a nuclear magnetic moment [ 142 ]. An evaluation of LCC structure and composition via NMR technology is a major landmark in the LCC analysis [ 18 ].…”