Problem $23$

$4$uvv

suvv

UV Spectrum

${}_{\text{m}\text{a}\text{x}}243nm(lo{g}_{10}1\mathrm{.}9)$

${}_{\text{m}\text{a}\text{x}}248nm(lo{g}_{10}2\mathrm{.}1)$

${}_{\text{m}\text{a}\text{x}}252nm(lo{g}_{10}2\mathrm{.}2)$

${}_{\text{m}\text{a}\text{x}}258nm(lo{g}_{10}2\mathrm{.}3)$

${}_{\text{m}\text{a}\text{x}}264nm(lo{g}_{10}2\mathrm{.}1)$

${}_{\text{m}\text{a}\text{x}}268nm(lo{g}_{10}1\mathrm{.}9)$

solvent : ethanol

${?}^{1}H$ NMR Spectrum $(400$ MHz$,CDC{l}_3$ solution$)$

$112$