p) Circle the major product for the following reaction. CH,CH,CI O,N- H2 AICI; O2N- O2N- H2 H2 II O,N- O2N- H2 H2 II IV

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

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+

Give the major elimination product of the following reaction. CH3CH₂Br NaOCH 3 H₂C=CH₂ CH3CH₂OH ? CH3CH₂OCH3 CH3CH₂SCH 3 CH3CH₂NH2 There is no reaction under these conditions or the correct product is not listec

2. What is the best choice of reagents to accomplish the following transformation. A) H₂O, Br₂ B) [1] BH3; [2] H₂O₂/HO- C) H₂O, H₂SO4 D) [1] BH3; [2] H₂O HO CH₂Br

Predict the major organic product of each reaction or provide the reagents needed to complete each transformation.

What would be the major product after the following reaction sequence? 1) LDA, -78 °C O S O OH 2) Å H.-78 HO -78 °C 3) mild acid workup, cold O ?

I answered C for this question; however, the correct answer is B.  Any explanation as to why B is the correct answer would be greatly appreciated.  Thanks!

47) What is the major elimination product obtained from the following reaction? Br CH3 (CH3)3CO (CH3),COH OI-Bu CH3 O-Bu CH3 CH3 CH3 %3D IV А) I B) II С) Ш D) IV