you m-(diethylamino)phenol phthalic anhydride 2 НО. H₂SO4 (cat.) Heat Rhodamine B

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Rhodamine B is useful dye prepared in a manner very similar to fluorescein. Due to the nitrogen donating groups, rhodamine B absorbs 550 nm light and fluoresces 580 nm light.

Provide a detailed mechanism for the formation of Rhodamine B from m-(diethylamino)phenol and phthalic anhydride in the presence of acid and heat.

2
goo. of
НО.
+
m-(diethylamino)phenol
phthalic anhydride
H₂SO4 (cat.)
Heat
Rhodamine B
Transcribed Image Text:2 goo. of НО. + m-(diethylamino)phenol phthalic anhydride H₂SO4 (cat.) Heat Rhodamine B
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