Give the chemical reactions for the following conversions:
$(1)$ Acetone from propene
$(2)$ Ethanal from $2-$bromobutane
$(1)$ Acetone from propene
$(2)$ Ethanal from $2-$bromobutane
(N/A) $(1)$ Acetone from propene:
$CH_3CH=CH_2$ $\xrightarrow{Br_2, CCl_4} CH_3-CHBr-CH_2Br$ $\xrightarrow{alc. KOH, \Delta} CH_3C \equiv CH$ $\xrightarrow{HgSO_4, H_2SO_4} CH_3COCH_3$
$(2)$ Ethanal from $2-$bromobutane:
$CH_3CH(Br)CH_2CH_3$ $\xrightarrow{alc. KOH, \Delta} CH_3CH=CHCH_3$ $\xrightarrow{(i) O_3, CH_2Cl_2, (ii) Zn, H_2O} 2CH_3CHO$
$CH_3CH=CH_2$ $\xrightarrow{Br_2, CCl_4} CH_3-CHBr-CH_2Br$ $\xrightarrow{alc. KOH, \Delta} CH_3C \equiv CH$ $\xrightarrow{HgSO_4, H_2SO_4} CH_3COCH_3$
$(2)$ Ethanal from $2-$bromobutane:
$CH_3CH(Br)CH_2CH_3$ $\xrightarrow{alc. KOH, \Delta} CH_3CH=CHCH_3$ $\xrightarrow{(i) O_3, CH_2Cl_2, (ii) Zn, H_2O} 2CH_3CHO$
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$(i)$ Benzene + $C_{2}H_{5}COCl$ $\xrightarrow{\text{Anhyd. } AlCl_{3}, CS_{2}}$
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