Discovery of Benzene Isolated in 1825 by Michael Faraday who determined C: H ratio to be 1: 1. Synthesized in 1834 by Eilhard Mitscherlich who determined molecular formula to be C6H6
Definitions Conjugated double bonds are separated by one single bond. Example: 1, 3-pentadiene. Isolated double bonds are separated by two or more single bonds. 1, 4-pentadiene. Cumulated double bonds are on adjacent carbons. Example: 1, 2-pentadiene
Types of Alcohol Reactions HH H Dehydration to alkene ·xidation to aldehyde, ketone Substitution to form alkyl halide Reduction to alkane ·Esterification ·Tosylation Williamson synthesis of ether
Introduction Alkynes contain a triple bond. General formula is C.H2n-2 Two elements of unsaturation for each triple bond. · Some reactions are like alkenes: addition and oxidation. · Some reactions are specific to alkynes