Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter22: Organic Chemistry And Biochemistry
Section: Chapter Questions
Problem 87QE
Related questions
Question
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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc4436f5f-01e3-4d46-baa5-3f23cf388ae7%2Fa63236ad-f6e7-450b-a1fd-7b807ee6daf7%2Fl91mj6l_processed.png&w=3840&q=75)
Transcribed Image Text:H
x.x
HO
OH
cat. Pyridine
Ethanol A
HO
H₁C
CH3
OH
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