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Does sodium borohydride reduce alkenes? What about lithium aluminium hydride?

Does sodium borohydride reduce alkenes? What about lithium aluminium hydride?

Grade:12

1 Answers

Bhatnagar Rishabh Sushil
24 Points
8 years ago
they cant reduce alkenes into alkanes because in a c=c there is no nucleophilic nature the H- ion needs a positive carbon to attack like in a functional group with oxygen the carbon has a slight possitive charge.

though LiAlH4 has been reported to reduce double bonds in resonance conjugation with a phenyl ring and a carbonyl group as in cinnamic acid.
LiAlH4 is stronger reducing agent than NaBH4 so it can reduce esters and cyclic esters too but NaBH4 cant

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