Question

Derive an IUPAC name for the following (cyclo)alkenes: (Do not use cis/trans in your names. Use only the (EY(Z) designations for double bond stereochemistry. It is not necessary to use italics in writing compound names.) - AW

Answer 1

Firet of all we look for parent chain. group in at recond position functional group at 3rd bonition However, side chain (Cits) ie preeent at recond carbon but we have to give priority to functional group. There are three eide chaine (CH3) at 2, 3, 4 pozition. 23,4 trimethyl bent-2-ene Note = we can't wee &le with the above because eame groupe are attached with the double bonded carbone. leig. for &/ we eet priorities lol gt har same priority on. eame eide, hence, a 1) Hzc -c=c (H3 (2) ( tame E (21 e al 21 & & Different prioritice on side, hence & (2) Bor

(2) – barent chain two ethyl groupe at 3, 4 bozition. IN HS 2 3, 4 diethyl-hex-3 ene Note again we can't mention ele because doubly bonded carbon ie attached with eame groupe. Hence, we can't differentiate them.