How many stereoisomers exist for eugenol?
An answer of 1 (meaning eugenol has only 1 form) or 0 (meaning eugenol has no stereoisomers) was accepted. C. How many different 13C NMR signals would you expect in the 13C NMR spectrum of eugenol (ignore spin coupling)? There are 10 different carbons, and 10 different signals. (All 6 carbons on the benzene ring are different, as are all the carbons on the substitutents.) D. How many sites of unsaturation are in eugenol? 4 olefins + 1 ring = 5 or Malonaldehyde is also called “propandial”. E. Write a structural formula for malonaldehyde. malonaldehyde (propanedial) F. Sketch the expected proton NMR spectrum for malonaldehyde; include relative chemical shifts from tetramethylsilane (show its signal) and indicate the spin coupling pattern. Assign the peaks to each type of protons. Note the TMS peak on the far right. The carcinogen formaldehyde, CH2O, is also in the apples (derived from the apple skin). G. Sketch the expected proton NMR spectrum of monodeuteroformaldehyde, CHDO, show the s
