Summary:
By reacting the oxalyl chloride with a mixture of two phenols mixed bis(aryl) oxalates may be synthesized.
Student Handout 2011
Changes to published procedure:
We scaled up the procedure and worked without a drying tube on the reaction flask.
We evaporated the acetone with forced air rather than a rotary evaporator.
We limited the choice of phenol to: 2,3,6-trifluorophenol, 2,4,6-trichlorophenol, 4-nitrophenol, and 2,4-nitrophenol.
The fluorescent indicators we used were rubrene, and 9,10-diphenylanthracene.
We performed a UV scan of the products.
Positive:
+ Chemiluminscence is a cool phenomenon. A nice break from the syntheses of white powders and clear liquids.
Neutral:
± This was the most expensive lab to prepare for us.
± The chemiluminescence does not last long: mix the peroxide into the mixture while in a darkened room.
Negative:
- Most of the combinations (phenol and indicator) proposed in the article don’t chemiluminesce. It seems like a good idea for each student to synthesize at least one product that gives off light.
Inquiry & Extension ideas:
● “Let’s make glowsticks,” one student said.
2011 UV
Student Comments Spring 2008 for Synthesis of Chemiluminescent Esters
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