Chapter 13 Conjugated Unsaturated Systems
Chapter 13 Conjugated Unsaturated Systems Chapter 13 Conjugated Unsaturated Systems
ORGANIC CHEMISTRY Chapter 13 13.1 Int troduction Department of Chemistry, Xiamen University
ORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 13 13.1 Introduction
ORGANIC CHEMISTRY Chapter 13 Allyl radical CH2-=CH-CH2 888 Allyl cation CH=CH-CH 888 1.3-Butadiene CH2=CH-CH=CH 888 o molecules with delocalized t bonds are called conjugated unsaturated systems Department of Chemistry, Xiamen University
ORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 13 CH2 CH CH2 Allyl radical C C C Allyl cation CH2 CH CH2 C C C 1,3-Butadiene CH2 CH CH CH2 C C C C Molecules with delocalized π bonds are called conjugated unsaturated systems
ORGANIC CHEMISTRY Chapter 13 Conjugated unsaturated systems have a p orbital on a carbon adjacent to a double bond The p orbital can come from another double or triple bond The p orbital may be the empty p orbital of a carbocation or a p orbital with a single electron in it (a radical) o Conjugation affords special stability to the molecule o Conjugated molecules can be detected using UV spectroscopy Department of Chemistry, Xiamen University
ORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 13 Conjugated unsaturated systems have a p orbital on a carbon adjacent to a double bond The p orbital can come from another double or triple bond The p orbital may be the empty p orbital of a carbocation or a p orbital with a single electron in it (a radical) Conjugation affords special stability to the molecule Conjugated molecules can be detected using UV spectroscopy
ORGANIC CHEMISTRY Chapter 13 13.2 Allylic Substitution and the allyl Radical Department of Chemistry, Xiamen University
ORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 13 13.2 Allylic Substitution and the Allyl Radical