SYNTHESIS AND ACID CATALYSED CONDENSATION OF 3-(1-HYDROXY-4-CHLOROBENZYL) -1-METHYLINDOLE

3-(1-Hydroxy-4-chlorobenzyl)-1-methylindole (3) has been synthesised in three steps. The first step involved <br /> methylation of indole to give N-methylindole (4) in 87% yield which on Vilsmeier-Haack formylation in the next step <br /> gave new ketone (S) in 67% yield. Sodium bo...

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Bibliographic Details
Main Author: Santoso, Mardi
Format: Final Project
Language:Indonesia
Online Access:https://digilib.itb.ac.id/gdl/view/700
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Institution: Institut Teknologi Bandung
Language: Indonesia
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Summary:3-(1-Hydroxy-4-chlorobenzyl)-1-methylindole (3) has been synthesised in three steps. The first step involved <br /> methylation of indole to give N-methylindole (4) in 87% yield which on Vilsmeier-Haack formylation in the next step <br /> gave new ketone (S) in 67% yield. Sodium borohydride reduction of the new carbonyl compound (S) in the last step <br /> afforded the new indole alcohol (3) in 99% yield. Treatment of the secondary alcohol (3) with p-toluene sulfonic <br /> acid has been examined which afford di-(1-methylindol-3 yl)-(p-chlorophenyl)methane (7) in 71% yield.