HW19Key - Bocknack CH 310M Spring 2010 Graded Homework...

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

View Full Document Right Arrow Icon
Bocknack CH 310M Spring 2010 Graded Homework Assignment #19 – Answer Key Deadline : 9:00 a.m., Friday, 4/30/10 LATE WORK WILL NOT BE ACCEPTED OR GRADED!!! This assignment is worth a total of 40 raw points. Tributyltin hydride (Bu 3 SnH) is used synthetically to reduce alkyl halides, replacing a halogen atom with hydrogen. Free-radical initiators such as Br 2 promote this reaction. A specific example is shown below: H Br + Bu 3 SnH trace Br 2 h H H + Bu 3 SnBr 1. (6 points) The initiation stage of the free-radical chain reaction mechanism is comprised of 2 steps. Initiation Step 1 is shown below. Propose a mechanism for Initiation Step 2 in the space provided. Use “fishhook” arrows to show how single electrons move in your proposed mechanistic step. 2. (6 points) The propagation stage of the free-radical chain reaction mechanism is also comprised of 2 steps. Propagation Step 2 is shown below. Propose a mechanism for Propagation Step 1 in the space provided.
Background image of page 1

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

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

Page1 / 2

HW19Key - Bocknack CH 310M Spring 2010 Graded Homework...

This preview shows document pages 1 - 2. Sign up to view the full document.

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