Draw the mechanism and the major organic product(s) for each of the following reactions. (a) (b) Hg(OAc)2, H20 ? Hg(OAc)2, H20 ? Acetic acid Acetic acid

Scheme 1: Reagents: (a) acetic anhydride, sulfamic acid, 60°C,30min,91%; (b) Et3SiH,I2,0-5°C,30min,82%. 1) Draw the FULL, ARROW-PUSHING MECHANISM 2) Provide a verbalization of the mechanism for your reaction mechanism 3) What is happening at each step? What atom is nucleophilic? Which atom is electrophilic? Which bonds are made? Which bonds are broken? 4) Imagine you are trying to describe the reaction mechanism and I can't see your display - how would you describe the mechanism in a way that I know, that you know, what you are talking about.

Which is the major product of the reaction below? (1) Na EtO /EIOH (2) dil H*, H-O (A) (B) H2COO OCH3 (C) OCH3 (D) OCH3 Compound A Compound D Compound C Compound B

Please include the mechanism to get the major product.

Q1

What is the product of the following mixed Claisen reaction? (1) LDA -78 °C (2) add slowly (a) (b) HQ OH (c) (d) Answer (a) Answer (b) Answer (c) O Answer (d) O O O 0

58. What is the major product of this reaction? (A) hi NaBHA CH₂CH₂OD OH (B) OD (C) محمد (D) محمد OD

(d) Using A, design a two-step synthesis of B that makes use of a pericyclic reaction. Your answer should name the pericyclic reaction involved and include a reaction mechanism for each step. OH Ph Ph. CO,Me OH A

What is the major product for this reaction? (A) A None of these U H₂ Pd (B) (C) (D)