Exam 3 Review - Chem 210 Exam 3 Review SN1/SN2/E1/E2...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Chem 210: Exam 3 Review SN1/SN2/E1/E2 Leaving group -X Halogen -X + -Ag -sulfonate ester -O + H 2 (in acid) - + N=N: To determine type of reaction ask yourself 2 questions: 1. What is the timing of the reaction(uni or bimolecular)? For SN, this is mainly determined by the electrophilic center. 2. What is the focus of the reaction (substitution or elimination)? This is mainly determined by the nucleophile. Assume it is SN: To address timing, look at the electrophilic center and C-LG relationship -If 0 o or 1 o , then it must be bimolecular (C + cannot form) SN2 -If 3 o , then it will be unimolecular (C + will be stabilized; alpha carbon is hindered so nucleophile cannot attack) SN1 -If 2 o or resonance-stabilized C + : look to nucleophile; if nucleophile is strong SN2 , if nucleophile is weaker and bigger SN1 Stereoimplications: Timing implies stereochemistry of products SN1 racemic mixture of R and S SN2 inverted stereochem Leaving group also impacts the rate
Image of page 1

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

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern