[2+2]-Photocycloadditions of 2-Acetoxy-1,4-naphthoquinone and Structure Determination of the Main Photoadducts
Journal Publication ResearchOnline@JCUYaseen, Madyan A.;Guo, Zhifang;Junk, Peter C.;Oelgemöller, Michael
Abstract
The [2+2]-photocycloaddition of 2-acetoxy-1,4-naphthoquinone with 1,1-diphenylethylene, styrene and cyclopentene was conducted in a conventional batch reactor. Prolonged irradiation selectively produced the corresponding anti and head-to-head cyclobutanes in acceptable to good yields. The batch process was subsequently transferred to continuous-flow operation in a simple capillary device. Likewise, the photocycloaddition with diphenylacetylene gave the corresponding cyclobutene and a benzoanthracenone derivative in acceptable yields. The crystal structures of all main photoproducts were successfully determined.
Journal
Photochem
Publication Name
Photochem
Volume
5
ISBN/ISSN
2673-7256
Edition
N/A
Issue
4
Pages Count
12
Location
N/A
Publisher
MDPI AG
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Publish Date
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Date
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EISSN
N/A
DOI
10.3390/photochem5040031