L13 Applied Organometallic Chemistry 1

Types of activation by hydrogen

Alkene hydrogenation catalytic cycle - what catalyst does it use

1,2-Insertion Step (RDS)

Influence of sterics of the alkene on the reaction

tri- or tetra- substituted alkenes will not react

Alternative Ru alkene hydrogenation catalyst

Asymmetric hydrogenation reactions

Alkyne hydrogenation mechanism

Alkyne hydrogenation - changes in proportions of alkynes, alkenes and alkanes over time

Frustrated Lewis pairs and alternative Hydrogen activation

Hydroelementation reactions

Hydrosilylation catalytic cycle

Selectivity determining step

Selectivity determining step: product ratio

Selectivity determining step: s (selectivity)

Product ratio with different ∆∆G

Influence of temperature on selectivity

Higher temperature weakens selectivity

Curtin-Hammett Principle so selectivity

Visual representation of selectivity

Remember energy of the transition state is what matters

Influencing regioselectivity