Question

provide the major organic products and draw out detailed mechanism with electron pushing arrows.

1. CH CH CH MgBr 2. H,00 NaBHA CH2CH2OH

Answer 1

Answer a):-

1. си, Си, си, My Br 2. И.01 си, се си, (major enduct)

Mechanism:-

The mechanism involves the nucleophilic attack of propyl carboanion from grignard reagent to carbonyl carbon , producing an alkoxide intermediate. Thus is followed by acidic workup, to form alcohol as major product.

+ си, си, Сн, му в вме Ви Сн,си, сн. H₂00 OH Protonation си, Сн, си, + фаза

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Answer b):-

다. R NaBH5 CH, CH 애 (Major Prodred

Mechanism:-

The mechanism involves attack of hydride ion to the carbonyl carbon to form alkoxide ion. This is followed by protonation to form an alcohol as a major product.

Nucleophilic Additim of не н 93 и у сн, си, и (Protonation) он