| Autor: |
Jia, JingWen, Yamaguchi, Yoshiko, Ueda, Tatsuya, Yamada, Hiroko, Kakiuchi, Kiyomi, Morimoto, Tsumoru |
| Předmět: |
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| Zdroj: |
Synlett; Dec2022, Vol. 33 Issue 19, p1948-1952, 5p |
| Abstrakt: |
We report on the use of anthracene α-diketone as a source of carbon monoxide (CO) in carbonylation reactions. Photoirradiation by a 5 W blue LED of a diyne in the presence of anthracene α-diketone and a rhodium(I) catalyst resulted in a [2+2+1]-carbonylative cycloaddition of the diyne to CO released from the anthracene α-diketone to give a high yield (up to 99%) of the corresponding cyclopentadienone. This is the first demonstration of a CO-gas-free carbonylation reaction using anthracene α-diketone. Light irradiation was a major factor both in the generation of CO from anthracene α-diketone and in the catalytic activity. A halogen lamp, a fluorescent lamp, or sunlight also served as a light source for this reaction. With this system, there is no need for an additional reagent for generating CO. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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