For the reaction scheme below: (1) Suggest a reagent X that could be used to accomplish the first step. (ii) Draw the curly arrow mechanism for the second step in the scheme. OH :- Na 2.

PQ-4. Predict the major product(s). (A) I Br (B) II Nal acetone Q I (C) III II (D) I and II III

Draw the major organic product of each of the following reactions.

QUESTION 1 Use the following reaction Scheme to answer questions that follow. NO₂ OH H₂SO4 OH A H₂, Pd/C B CH3COOH F E DMAP, Pyridine DMAP, Pyridine C LiAlH4. 0 °C D (a) Draw structures of missing products A - F. (b) Provide a full mechanistic details showing how Product A was formed.

1. Take a close look at the following reactions. (a) Draw the product in the box below. (b) Provide the mechanism in the space below the reaction scheme. H₂O, H₂SO4

3. a. (i) The reaction sequence shown in Figure 4 demonstrates the synthesis of a disubstituted benzene derivative O from compound M through two Electrophilic Aromatic Substitution reactions. (ii) C6H5Cl M CI AICI3 2 N Figure 4 HNO3, H₂SO4 CaH6CINO3 O Draw the chemical structure of compound M. Draw the mechanism for the transformation of compound M to intermediate N using curly arrows. (iii) Draw the chemical structure of compound O. (iv) Draw the mechanism for the transformation of intermediate N to compound O using curly arrows. (v) Account for the regiochemical outcome observed in compound O.

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Consider the reaction scheme below. (a) Name the reagent and conditions necessary for steps I to VI above. (b) Write balanced equations for step I to VI above. elow. 4. Consider the reaction scheme below. CH, CH CH₂CI III --------ပုံ CH₂OH CHÍNH, VI CH₂NHCOCH,CH, (a) Name the reagent and conditions necessary for steps I to VI above. (b) Write balanced equations for step I to VI above.

1. a) Write the major products of the following compounds with H+/H₂O b) Write the major products of the following compounds with PH3 followed by H₂O2/-OH 3-ethyl-2-pentene

Draw the product of each of the following reactions. (a) (b) NaN3 KCN ? H20 ? HOCH,CH,OH (c) (d) HCN 1. LIAIH4 ? HOCH,CH,OH ? 2. Hао (e) (f) CH;OH CH;ONa ? H,SO4 ? CH;OH (g) (Һ) CeH,CH,NH, ? 1. CH3LI ? 2. H,00 CH;OH