HETEROCYCLIC AROMATIC COMPOUNDS:

HYDROSILYLATION REACTION BY: CH. CAISER FASIEH

HOMOGENEOUS CATALYST IN HYDROSILYLATION:REDUCTION OF UNSATURATED BONDS BY REACTION WITH (Si-H) FUNCTIONALITY.

HYDROSILYLATION: HYDROSILYLATION MECHANISM:

MORE EXAMPLES:

REDUCTION OF ,-UNSATURATED CARBONYL COMPOUNDS : Unique and affective method :

Depends upon ratio of catalyst.Some are senstive to catalyst. HYDROSILYLATION RING CLOSURE REACTION:

1,4 addition Require high temprature Pd is active with conjugated olefins but not with unconjugated HYDROSILYLATION OF CONJUGATED DIENES:

Efficient for obtaining vinylsilanes The ratio of to varies with R3Si

HYDROSILYLATION OF ACETYLENES:

TO ALCOHOLS: Not widely used but reaction is highly stereospecific REDUCTION OF C=O:

TO ALKENES: ketone + His + lewis acid REDUCTION OF C=O:

Enantioselective HYDROSILYLATION OF C=N BONDS:

Thannks for watching and listening. Any question ???????