Continuous-flow photochemical transformations of 1,4-naphthoquinones and phthalimides in a concentrating solar trough reactor
Journal Publication ResearchOnline@JCUAbstract
A series of photochemical transformations has been successfully conducted under continuous-flow conditions in a concentrating solar trough reactor. Photoacylations and [2þ2]-photocycloadditions involving 1,4-naphthoquinones gave the corresponding photoproducts in moderate to high yields with residence times of 70 min. Likewise, acetone-sensitized photodecarboxylations involving phthalimides furnished the corresponding benzylated hydroxy phthalimidines in good to excellent yields and purity with residence times of 40 min. Compared with corresponding exposures to direct sunlight conducted in a solar float, flow operation generally gave superior conversions and subsequent yields.
Journal
Australian Journal of Chemistry
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N/A
Volume
73
ISBN/ISSN
1445-0038
Edition
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Issue
12
Pages Count
9
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Publisher
CSIRO Publishing
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EISSN
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DOI
10.1071/CH20138