Answer:
Transcribed image text: QUESTION 1 [11] Give reasons that might help to explain the following observations: a) A student was unsuccessful to prepare a Grignard reagent from 4-bromocyclohexanol. b) Benzenesulfonic acid does not undergo Friedel-Crafts alkylation. c) (2S, 3R)-2,3-Dibromobutane has a specific rotation, [a]D, of 0°. d) A student tries to prepare an ether via the Williamson ether synthesis from ethanol and t-butyl bromide, but obtains an alkene instead. e) Doubling the concentration of a nucleophile has no effect on the rate of a substitution reaction.
The Benzenesulfonic acid does not undergo Friedel-Crafts alkylation because of the deactivation of the compound by the carboxylic group.
The Grignard reagent is a compound that contains alkyl magnesium halide.
a) The student will be unsuccessful to prepare a Grignard reagent from 4-bromocyclohexanol because of the -OH group that reacts with the Grignard reagent when formed.
b) The Benzenesulfonic acid does not undergo Friedel-Crafts alkylation because of the deactivation of the compound by the carboxylic group.
c) The compound (2S, 3R)- 2,3-Dibromobutane has a specific rotation, [a]D, 0⁰ because it is a meso compound.
d) This is because, the tertiary alkyl halide is more prone to elimination reaction giving the alkene.
e) This is because, the reaction may be occurring by an SN1 mechanism and the rate determining step is the formation of the carbocation.
Learn more about substitution reaction:https://brainly.com/question/16811879
#SPJ6
