6. Which of the following is a major product of the reaction sequence shown in the box? H2NNH2 КОН ? co ROH, Нeat AICI3 B) H3CO H3CO D) H3CO H2NHN 1H NMR of the major product: Expansion aromatic region: 9H, singlet 2H,doublet 2H, doublet 3H, singlet 2H, singlet PPM

8) Predict the major product of the following reactions. a)I 2 b) п c) II d) IV e) V ОН I Н Н ОН- Н30* heat (-H2O) H ОН II ОН NaBH4 CH₂OH ? (Z and E) III (Z and E) OH по ву ОН IV Н ОН

Which compound is the dominant product of the reaction shown below? (1) NaH/THF -SH (2) Br C. Br Compound C Compound A Compound B O Compound D

13). What is the major product of the following two reactions? H₂ H3C H3C NH (A) H3C ОН H3C NH₂ OH-, then H2O (D) H3C H₂ (В) CH3 ? H3C H3C (E) ОН NH (C) CH3 -CH₂

presented by Macmillan Learn Draw the product of the transformation shown by the fishhook notation. Include all hydrogen atoms and nonbonding electrons. 20 4 $ H3C Jean CH₂ R F V H3C 999 ODD FA % 5 T G F B 6 MacBook Pro Y H & 7 N ↑ 80 F7 U 8 M I K Draw the product. Select Draw Rings More ////// C ( 9 H C DD F9 V O ) O J F10 P ^. H Br - F11 { command option سال [ + F12 Erase (

Identify the best reagents the following reaction. CH3 CH3 O H2O/H О он ? O H2O/Peroxide о 1. ВН3/ 2. НО, Н2О2, Н20 0 BH3 ОН

5. What is the product of the reaction shown? CH3OCH₂ 0 OCH3 (A) CH3OCH2 H CH3O (B) HOCH2 Н H CH3O Н (C) HOCH2 ОН Н H H Н CH3O (D) HOCH2 Н Н О Н 0. ОН H Н OH Н Н Н H OCH3 ОН Н OCH3 OCH3 Н OCH3 OCH3 T Н H2O H+

12) Explain whhy compound 2 is a much weaker base than compound 1 (approximately 1000 tirnes less basic) O Steric effect and resonance will decrease the charge density on N atom in compound 2 O Resonance and induction effects will decrease the charge density on N atom in compound 2 O Inductive and resonance effects will decrease the charge density on N atom in compound 1

What reagent is needed to carry out the following transformation? HO COOH 4 HO CN ? 2. H3O* 1. LAH OH3O+ Oa) 03, b)DMS OSO4, NMO

which newman projection displays the proper antiperiplanar orientation for an E2 elimination of the reaction sequence below