Draw the mechanism for the addition of methylmagnesium bromide to propanoyl chloride (CH3CH2COCl) to give 2-methyl-2-butanol.
1 answer:
Answer:
Reaction mechanism has been given below
Explanation:
- Propanoyl chloride contains an electrophilic carbonyl center to give nucleophilic acyl substitution reaction by removing Cl group with a strong nucleophile like methylmagnesium bromide.
- Two equivalent of methyl magnesium bromide react with cabonyl center followed by protonation of negatively charged oxygen atom gives 2-methyl-2-butanol.
- In the first step, nucleophilic acyl substituion occurs. In the second step, nucleophilic addition occurs. In the third step, protonation occurs.
- Reaction mechanism has been shown below.
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Answer:
Mass= 314.96 grams
Explanation:
The density of the substance is defined as mass per unit volume of it.
The formula is :
<u><em>Unit conversion:</em></u>
1 liter = 1000 ml
So
....(1)
Replace The dm3 by cm3 in (1)
<u></u>
<u>Volume = 254 mL = 254 cm3</u>
<em><u>Calculation of mass</u></em>
Mass= 314.96 grams(or 315 grams)
Note: Always makes same units before solving the question. You can not determine the mass if Volume is in mL and Density is in g/cm3. Change mL into cm3 first