Tin-free radical chemistry: intramolecular addition of alkyl radicals to aldehydes and ketones
Autor: | Louis Fensterbank, Priscille Devin, Max Malacria |
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Rok vydání: | 1999 |
Předmět: | |
Zdroj: | Tetrahedron Letters. 40:5511-5514 |
ISSN: | 0040-4039 |
DOI: | 10.1016/s0040-4039(99)01072-2 |
Popis: | The radical cyclization of several ω-iodoaldehydes and a ketone can be accomplished without the use of tributyltin hydride. Triethylborane in presence of oxygen or light from a sun lamp can serve as a radical initiator and terminator. In these conditions, a 5-exo-trig cyclization on an aldehyde is faster than on an alkene. |
Databáze: | OpenAIRE |
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