Question

Please try to explain briefly about the result of this given NMR and describe what the (specific ester) structure could be for this NMR. Also please try to give accurate results and explain all the possibilities. Thank you!

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Answer 1

NmR Spectaum O.qo (t, 3H ) = -80 ( Sextet, 2H) 2.05 (Singlet, 9H) 4. 15(tiplet, 2H) 0-CHC Explanahen The NmR tsiplet at S o-qo ppm due to SH indicate the presence os CH ase psesent. and on is adiacent caxbon two Psotons presence l.80ppm due to 2H indicate the The eetet at ols and on fts adjacent carboans five hydrogen atom ase psesent Therelooe, there is presence CCHC -CH in stauctuse . The NmR Singlet at 2.05ppm due 3H indicate the presence ols goup and down lsielcl chemical shikt (ndicate attached to car bonyl qsoup. dJ The NmR tsiplet at poesence oBCland on its adjacent carbon thee is two hydrogen atom psesent The downlsield S inclicate i+ attachedl to electronegahve oxygen atom bsom other side. Thus these 's--C-C- psesent in structare possible stucture os estes is 4.15Ppm due to 2H indicate the The CHCH2CH T 1.80( Sertet 09oct) 4.Is(t) 2-05(s)