Question

Give the IUPAC name for each of the following compounds. Include R/S or cis/trans designation at the stereogenic center(s) in the name. CHE CH, O Brº on CH₃ IsoTCH Name: (35,75,95) - 3- bromo - 1 CH₂ CH3 **use cis/trans ONLY** Name: lution of an enantiomerically pure sample of (R)- 3-chloropentanoic acid is made by dissolving 2

Answer 1

(6) CH3 CS RCH H2C (3R,7R,9S)-3-bromo-7-butyl-9-ethyl-9-methyldodecane The longest carbon chain is 12 and thus the suffix is dodecane, There is a bromo group at carbon-3, a butyl group at carbon-7, an ethyl group at carbon-9 and a methyl group at carbon-9. There is stereochemistry R at carbon-3 and carbon-7. stereochemistry S at carbon-9. There, the IUPAC name of the compound is (3R,7R,9S)-3-bromo-7-butyl-9-ethyl-9-methyldodecane. (7) CH3 CH3 (15,3S)-1-fluoro-3-(2-methylbutylcyclohexane The longest carbon chain is cyclohexane and thus the suffix is cyclohexane. There is 2-methylbutyl group at carbon-3, a fluorogroup at carbon-1. There is stereochemistry S at carbon-3 and carbon-1. There, the IUPAC name of the compound is (15,3S)-1-fluoro-3-(2-methylbutylcyclohexane.