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

Authors
Kobayashi, K Shinhara, S Moriyama, M Fujii, T Horn, E Yabe, A Furukawa, N
Citation
K. Kobayashi et al., Generation of ketenes by photolysis of naphtho[1,8-de]-1,3-dichalcogeninylidene 1-oxides, TETRAHEDR L, 40(28), 1999, pp. 5211-5214
Citations number
15
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON LETTERS
ISSN journal
00404039 → ACNP
Volume
40
Issue
28
Year of publication
1999
Pages
5211 - 5214
Database
ISI
SICI code
0040-4039(19990709)40:28<5211:GOKBPO>2.0.ZU;2-R
Abstract
The photolysis of naphtho[1,8-de]-1,3-dichalcogeninylidene 1-oxide derivati ves (4 and 5) at >290 nm generates ketenes together with naphtho[1,8-cd]-1, 2-dichalcogenole, which were confirmed by the trapping experiments and the direct observation using IR spectroscopy. The generation of ketenes from th e selenium compounds 5 is more effective than that from the sulfur analogs 4. (C) 1999 Elsevier Science Ltd. All rights reserved.