How do you synthesize triphenylmethanol?
Triphenylmethanol is prepared from benzophenone using a Grignard reagent e.g. phenyl magnesium bromide through nucleophilic acyl addition mechanism.
What is the Grignard synthesis?
The Grignard reaction (French: [ɡʁiɲaʁ]) is an organometallic chemical reaction in which alkyl, allyl, vinyl, or aryl-magnesium halides (Grignard reagent) is added to a carbonyl group in an aldehyde or ketone. This reaction is important for the formation of carbon–carbon bonds.
What is the limiting reagent in Grignard reaction of triphenylmethanol?
Since the magnesium is limiting reagent, so the number of mole of Grignard reagent produced is limited by number of mole of magnesium. Since the Grignard reagent is excess, the product is limited by methyl benzoate so that it is limiting reagent in the reaction.
What is the purpose of the Grignard reaction experiment?
The purpose of this experiment was to reduce the carbonyl-containing compound benzophenone to the alcohol compound trimethylmethanol. This reduc- tion was done by the nucleophilic addition of the Grignard reagent: phenyl magnesium bromide, in a nonreactive ethyl ether solution.
What is the purpose of synthesis of triphenylmethanol?
Triphenylmethanol was synthesized with a 9.21 % yield. The purpose of the experiment is to synthesize triphenylmethanol from bromobenzene and benzophenone. When magnesium is added to the bromobenzene in ether, a Grignard reagent is formed.
Why is triphenylmethanol important?
Triphenylmethanol is used as a reagent in the research laboratory. It acts as an intermediate in the production of the commercially useful triarylmethane dyes. It is used in the preparation of triphenylmethane. It is also used as an antiproliferative agent.
How was Grignard reagent discovered?
Discovered by Victor Grignard at the University of Lyon in France in 1900, (1) their ease of preparation and their broad applications in organic and organometallic synthesis made these new organomagnesium reagents an instant success.
Why is Triphenylmethanol important?
What is the melting point of Triphenylmethanol?
161°C to 164°C
|161°C to 164°C
|360°C to 380°C
|Assay Percent Range
What is a good yield of triphenylmethanol?
Weigh the dry triphenylmethanol from Day 2. The product should be colorless or whitish in appearance. Determine a melting point, which should be below 160oC. A typical yield should be close to 2.0 g.
Why does triphenylmethanol dissolve in sulfuric acid?
Triphenylmethanol is insoluble in water, but when it is treated with an acid, like concentrated sulfuric acid, it dissolves to create a bright yellow solution, due to the formation of a stable “trityl” carbocation.