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Posted: **Wed Apr 27, 2022 7:04 am**

: C Study The Following Reaction Scheme For The Preparation Of A Natural Glycoside Compound 7 And Answer The Questions 1 (142.59 KiB) Viewed 40 times

: C Study The Following Reaction Scheme For The Preparation Of A Natural Glycoside Compound 7 And Answer The Questions 2 (209.81 KiB) Viewed 40 times

c) Study the following reaction scheme for the preparation of a natural glycoside (compound 7) and answer the questions that follow: OH ОАс - HO но. excess Ac, o pyridine, 0°C Aco ACO OH -OAC OH OAC Compound 4 Compound 3 НВг OCH, ОАс Oac ? ACO Aco Асо Ado ОАс OAC Compound Compound 5 Br NaOH, H10 mm OCH, OH HO НО. OH Compound 7
i. Write a mechanism for the reaction of any one of the hydroxyl groups of compound 3 in the conversion to compound 4. [3 marks] Identify the unknown reagent(s) in the reaction scheme which converts compound 5 to compound 6. [2 marks] ti. 1. Propose a detailed reaction mechanism for the conversion of compound 5 to compound 6 and concisely explain the stereochemical outcome.