Chapter_7_words

Chapter_7_words - ORGANIC CHEMISTRY CHEM 12A LANEY COLLEGE...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
ORGANIC CHEMISTRY LANEY COLLEGE CHEM 12A Version 2.0, 9/1/06 Chapter 7 Learning Objectives and Terminology Akenes are double bonded carbon bonds that contain a sigma and pi bond. Know the difference between sigma ( σ ) and pi ( π ) bonds. Know the possible orbital overlaps for each type of bond; there are several possible sigma bonds ( σ) : e.g., σ (sp 3 -sp 2 ) or σ (sp-1s), etc. ; but only one type of pi ( π) bond (p-p). The rotational barrier for alkenes is large (264 kJ/mole), so the configuration of the double bond is locked. Nomenclature of alkenes. Remember that if an alkene and alkyne are present in the same compound the name is of the form alk-en-yne and if given a choice the alkene gets the lowest number (e.g. ( Z )-hex-2-en-4-yne and not ( Z )-hex-4-en-2-yne) Understand the use of cis/trans and E/Z to label alkenes (note cis/trans is only used for alkanes when there are substituents on rings such as the cycloalkanes). Use the Cahn-Ingold-Prelog
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/23/2010 for the course CHEM 12A taught by Professor Corlett during the Spring '07 term at Laney College.

Ask a homework question - tutors are online