The Friedel-Crafts acylation reaction of compound Q and 2-(1-phenylethyl)-1,3-dioxolane was also found to give a second unknown compound, which 1 H NMR spectroscopy suggested was a regioisomer of intermediate R. Suggest a structure for this second unknown compound

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The Friedel-Crafts acylation reaction of compound Q and 2-(1-phenylethyl)-1,3-dioxolane was also found to give a second unknown compound, which 1 H NMR spectroscopy suggested was a regioisomer of intermediate R. Suggest a structure for this second unknown compound. 

 

The synthesis of suprofen, a potent non-steroidal anti-inflammatory drug, from thiophene is proposed
following the sequence of reactions shown below.
H3C
H.
CHз (DMF)
POCI3
steps
Na,CO3, H20
H
CI
thiophene
AICI3
CH3
2-(1-phenylethyl)-
1,3-dioxolane
steps
HO2C
S.
CH3
CH3
R
suprofen
Transcribed Image Text:The synthesis of suprofen, a potent non-steroidal anti-inflammatory drug, from thiophene is proposed following the sequence of reactions shown below. H3C H. CHз (DMF) POCI3 steps Na,CO3, H20 H CI thiophene AICI3 CH3 2-(1-phenylethyl)- 1,3-dioxolane steps HO2C S. CH3 CH3 R suprofen
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