ll H, II
CH CHCOH [(CGHShPthCl CHECHZCOH
Cinnamic acid 3Phenylpropanoic acid (90%)
When a single enantiomer of a chiral catalyst is used, hydrogenations can be
carried out with high enantioselectivity.
Section 14.15 The doubly bonde
Chapter 17 Aldehydes and Ketones: Nucleophilic Addition to the Carbonyl Group
Under conditions of acid catalysis, the nucleophilic addition step follows
protonation of the carbonyl oxygen. Protonation increases the carbocation
character of a carbony
Section 3.14 Cyclic hydrocarbons can contain more than one ring. Spiro hydrocarbons are
characterized by the presence of a single carbon that is common to two rings.
Bicyclic alkanes contain two rings that share two or more atoms.