UC235
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The Fischer Esterification: Methyl Benzoate
UC235
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The Fischer esterification is used to prepare methyl benzoate from benzoic acid and methanol with sulfuric acid catalyst in 76.4% yield. A soxhlet extractor charged with de...
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Synthesis of Phenylacetylene
UC235
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Phenylacetylene is prepared from styrene dibromide in 59.9% yield by a double dehydrobromination utilizing high temperature NaOH in glycerol. The product distills from the ...
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The Grignard Reaction: Triphenylmethanol
UC235
1,419 views
The Grignard reagent, phenylmagnesium bromide is prepared in sodium-dried ether from bromobenzene and magnesium turnings in a flame dried apparatus. Ethyl Benzoate is react...
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Synthesis of 6-Bromohexanoic Acid
UC235
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6-Bromohexanoic acid is prepared in a two step process from readily available polycaprolactone plastic. Heating with aqueous NaOH affords sodium 6-hydroxyhexanoate and sodi...
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Solvent Purification: Hexanes
UC235
844 views
A mixture of branched chain hexane isomers with a boiling range of 50-65C is isolated from an inexpensive electronics part cleaner. This material is an excellent solvent fo...
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Preparation of Chloroform
UC235
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The haloform reaction is used to prepare chloroform in a simple procedure. The resulting crude product is dried, distilled, and stabilized, giving an overall 66.5% yield fr...
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Synthesis of Styrene and Styrene Dibromide
UC235
1,027 views
Styrene is prepared by thermal cracking of polystyrene plastic. On redistillation of the crude product, styrene was obtained in 67% yield as a colorless liquid. Due to inst...
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Synthesis of Copper Phthalocyanine
UC235
933 views
Copper Phthalocyanine (Phthalo blue pigment) is synthesized using commonly available chemicals. The reaction is accomplished rapidly by heating in a microwave and presents ...
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Synthesis and Chemiluminescence of Luminol
UC235
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3-Nitrophthalhydrazide, prepared in a previous video, is reduced with a readily available reducing agent (thiourea dioxide, TUD) to luminol, which is obtained in 66% yield ...
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Preparation of 3-Nitrophthalhydrazide
UC235
990 views
3-Nitrophthalhydrazide, the immediate precursor to luminol is synthesized from previously prepared 3-nitrophthalic acid and hydrazine sulfate using a modification of the Or...
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