CHAPTER 5 STRUCTURE AND PREPARATION OF ALKENES ELM|NAT| ON REACT○NS SOLUTIONS TO TEXT PROBLEMS 5.1 (b) Writing the structure in more detail, we see that the longest continuous chain contains four carbon atoms H3 The double bond is located at the end of the chain and so the alkene is named as a derivative f 1-butene. Two methyl groups are substituents at C-3. The correct IUPAC name is 3, 3- (c) Expanding the structural formula reveals the molecule to be a methyl-substituted derivative of CH3-C=CHCH,CH,CH 2-Methyl-2-hexene numbering the longest carbon chain. CH,=CHCH, CHCH Back Forward Main Menu TOC Study Guide Toc Student OLC MHHE WebsiteCHAPTER 5 STRUCTURE AND PREPARATION OF ALKENES: ELIMINATION REACTIONS SOLUTIONS TO TEXT PROBLEMS 5.1 (b) Writing the structure in more detail, we see that the longest continuous chain contains four carbon atoms. The double bond is located at the end of the chain, and so the alkene is named as a derivative of 1-butene. Two methyl groups are substituents at C-3. The correct IUPAC name is 3,3- dimethyl-1-butene. (c) Expanding the structural formula reveals the molecule to be a methyl-substituted derivative of hexene. (d) In compounds containing a double bond and a halogen, the double bond takes precedence in numbering the longest carbon chain. Cl CH2 CHCH2CHCH3 1 2 3 4 5 4-Chloro-1-pentene CH3 CH3 C CHCH2CH2CH3 1 2 3 4 5 6 2-Methyl-2-hexene CH3 CH CH3 CH3 C CH2 4 32 1 90 Back Forward Main Menu TOC Study Guide TOC Student OLC MHHE Website