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Structure elucidation and assignment of 1H and 13C spectra of the new fused cyclobutane-naphthofuran derivative by two-dimensional NMR in different solvents

One of the major products from the photodimerization of 2-[2-(2-methylphenyl)ethenyl)]naphtho[2.1-b]furan is a new fused cyclobutane-naphthofuran derivative, 6-(2-methylphenyl)-1-[2-(2-methylphenyl)ethenyl]-7-(2-naphtho-[2, 1-b]furyl)-3-[2, 1]naphtho-2-oxabicyclo[3.2.0]hept-3-ene. Its H-1 and C-13 NMR spectra were fully assigned by the application of COSY, LR COSY, NOESY, APT and HETCOR experiments in deuterated chloroform, acetone and benzene solutions.

naphtho[2, 1-b]furan ; cyclobutane ; oxabicyclo[3.2.0]heptene ; H-1 NMR ; C-13 NMR ; COSY ; LR COSY ; NOESY ; HETCOR

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