Question

2. Draw structure (or) name the molecules according to IUPAC rules. (10 pt) i. 2,6-dimethyl-5-propyloctane Name the following compounds according to IUPAC nomenclature. ii. E: CH.CH C(CH3) 3. Give five different structures of CH3 alkyl groups, and identify the carbon at the point of attachment as primary, secondary or tertiary as appropriate. (10 pt)

Answer 1

2, 6-dimethy L-5-propy Loctane. CH₂ CH₂ CH₃ CH₂ H He -e - e - e - de er H H 21 8 1 1 H CH₃ or; 5 7 2 CH₃ C2 3 430 Name: 3 - ethyl - 4a is opsopyl-2,6-dimethylde cane CH2CH3 me(CM3)3 Stereo Chemistry: (1R, 22)- 1-tert-butyl-2-ethyl cyclononane Name IUPAC Nome: 1- tertbutyl-2-ethyl cyclononane. CC H13 alkyl OCH, CH2CH=CH-CH2=CH2 & Point of attachment (Primary) henanyl group .&- cch Point of attachment Point of attachment (primary) 2,2-dimethy bulany group.

& Point of altachment (Tertiary) ₂ - CH₂ - C-CH₂-CH3 H-CH2 CH₃ 3-methy pentanyl group lv Н CH₂ CH₂ - 2 c 2 - CH2 CH3 1 1 & Point of attachment (Primary H 2,3-dimethy L butany L group. CH3 5 3 CH₂-CH₂-CH₂-C * Point of attachment (Primary th 112-methyl Pentanyl group. page:2.