Question

1. Draw the Most stable chair conformation НО. CI HO OH HOS OH 2. Name following structure: Br 3. Give the major product(s): 1) BHY/THF 2) NaOH, H2O, HẠO Bry/CH,CI;

Answer 1

DATE PAGE I. OH 3 mol D cu 6 10 oll Ha How Jo HO cl OH el bulky group should be equatorial 2. N 2 S 3 4 Br 3-bromo-4 4-methyl-3-(methylisopropyl ether I eyelopentane

DATE PAGE 3. Bral cthch. Br Br This frans is bromination of alkene which of alkene which gives product. Ex Bon Br By M BH3/THE NaOH, Hol H₂O₂ ht 7 OH product This reaction gives alkene to alcohol. Boron attacks on bess hindered site of alkene and then H₂O2 (in form of -ool) attack on boron COH addition on bess hindered). to give alcohol

DATE PAGE Es TOH ph ph. BHz By H₂02/ Naoll. Neol BHz .ph OH. سرع Blzy Naon? thoz MOH Product OH not formed.