CHE201B - Exam 2 2005 Answer

CHE201B Exam 2 - PROBLEM I Write one example of each of the following(3 points each(A A cis-cycloalkene Score Problem I(B An E-alkene CH3 H H CH3(C

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
PROBLEM I Write one example of each of the following (3 points each). (A) A cis -cycloalkene (B) An E -alkene (C) A primary alkyl halide (D) An allylic radical (E) A nucleophile that shows strong steric hindrance in an S N 2 reaction Score - Problem I H H CH 3 CH 3 Br H H O
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 (F) An anion that is very reactive as a nucleophile in S N 2 reactions, but weakly reactive as a base in E2 reactions I - (G) A polar aprotic solvent – show chemical structure (H) An achiral molecule that has two chiral carbon atoms (I) A chiral molecule that has no chiral carbon atoms (J) An alkyl bromide that is very unreactive toward S N 2 nucleophilic substitution. O O N S O or or CH 3 OH H OH H CH 3 Cl I Br Br I C H CH 3 H CH 3 The allene must have subsituents at each terminal carbon or
Background image of page 2
3 PROBLEM II Circle the correct answer to each question (5 points each). (A) Which of the following molecules is not expected to react as a nucleophile? (B) Circle the halide ion that is the most reactive nucleophile in S N 2 reactions in water. (C) What is the total number of hydrogens at compound A that may react to form HCl in an E2 elimination reaction? Credit also given for 5
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 10/10/2010 for the course CHE 201 taught by Professor Bong during the Fall '08 term at SUNY Buffalo.

Page1 / 9

CHE201B Exam 2 - PROBLEM I Write one example of each of the following(3 points each(A A cis-cycloalkene Score Problem I(B An E-alkene CH3 H H CH3(C

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online