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Generation of ketenes by photolysis of naphtho[1,8-de]-1,3-dichalcogeninylidene 1-oxides

✍ Scribed by Kenji Kobayashi; Satoshi Shinhara; Masaya Moriyama; Takayoshi Fujii; Ernst Horn; Akira Yabe; Naomichi Furukawa

Book ID: 104261723
Publisher: Elsevier Science
Year: 1999
Tongue: French
Weight: 222 KB
Volume: 40
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(99)00940-5

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✦ Synopsis

The photolysis of naphtho[1,8-de]-l,3-dichalcogeninylidene 1-oxide derivatives (4 and 5) at >290 nm generates ketenes together with naphtho[1,8-cd]-l,2-dichalcogenole, which were confirmed by the trapping experiments and the direct observation using IR spectroscopy. The generation of ketenes from the selenium compounds 5 is more effective than that from the sulfur analogs 4.

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