H x.x HO OH cat. Pyridine Ethanol A HO H₁C CH3 OH

Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter21: Hydrocarbons
Section: Chapter Questions
Problem 100A
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Draw a detailed mechanism, using curved arrow notation,for the synthesis of 3-carboxy-umbeliferone from 2,4- dihydroxybenzaldehyde and Meldrum's Acid via a Knovenagle condensation and hydrolysis. Please include all necessary catalyst such as 5% pyridine(catalyst) in ethanol).

H
x.x
HO
OH
cat. Pyridine
Ethanol A
HO
H₁C
CH3
OH
Transcribed Image Text:H x.x HO OH cat. Pyridine Ethanol A HO H₁C CH3 OH
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