Synthesis of Substituted Coumarins and 2??Quinolinones by Cycloisomerisation of (Hydroxy/aminophenyl) propargyl Alcohols

M Sridhar Reddy, N Thirupathi…

Index: European Journal of Organic Chemistry, , # 29 p. 5803 - 5809

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Citation Number: 13

Abstract

... European Journal of Organic Chemistry. ... The combined organic extracts were dried with Na 2 SO 4 , filtered, and concentrated under vacuum ... 1 H NMR (300 MHz, [D 6 ]DMSO): δ = 12.0 (s, 1 H), 7.8 (d, J = 8.2 Hz, 1 H), 7.5 (t, J = 6.9 Hz, 1 H), 7.3 (d, J = 8.2 Hz, 1 H), 7.2 (t, J = 6.9 Hz ...