Hydroboration Part 2

Lesson 2 of 9 • 5 upvotes • 15:00mins

Dhirpal

Addition of boronhydrides. The stereochemical outcome of this reaction is also of particular interest. Addition of water (H and OH) leads to the formation of two chiral centers, and H and OH are added to the same side of the π bond. This mode of addition is called a syn addition. Only two of the four possible stereoisomers are formed. That is, the reaction doesn’t produce the two stereoisomers that would result from adding H and OH to opposite sides of the π bond (anti addition).