The starting material in part B of experiment 39 is benzyltriphenylphos phonium

Question

The starting material in part B of experiment 39 is benzyltriphenylphos phonium chloride (shown below). This molecule is characterized by the presence of in its structure. a basic carbon a nucleophilic carbon an acidic proton an necrophilia carbon The conjugate base of a "witting salt" is also known as an "slide." According to the mechanism given in the textbook, the FIRST STEP in the reaction of the phosphorus slide with a carbonyl compound such as chinamaldehyde involves: a proton transfer formation of a four- membered ring a necrophilia attack on the carbonyl carbon an acid-base reaction an Sn2 displacement

Explanation / Answer

The starting material in Part B of the said expt.39 is benzyltriphenylphosphonium chloride is characterized by the prescence of,

C) an acidic proton

The conjugate base of a "wittig salt" is also known as an "ylide"

A) True

According to the mechnanism provided, the first step in the reaction of the phosphorous ylide with a carbonyl compound such as cinnalmaldehyde involves,

C) a nucelophilic attack on the carbonyl carbon

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