When generated at 100°C, aliphatic and aromatic thioaldehydes without electronic bias are shown to undergo addition reactions to both aliphatic and aromatic 1,3-dienes. The reaction is shown to have application in an intramolecular example.
The reaction of selenoaldehydes with 2-methoxyfuran using their generation by retro Diels–Alder reaction
作者:Aojia Zhou、Masahito Segi、Tadashi Nakajima
DOI:10.1016/s0040-4039(02)02830-7
日期:2003.2
Selenoaldehydes, regenerated by thermal retro Diels–Alder reaction of anthracene cycloadducts under neutral conditions, reacted with 2-methoxyfuran to give methyl penta-2,4-dienoates along with the deposition of elemental selenium. In a similar reaction with 2-methoxyfuran using thioaldehyde, thiirane compound was isolated. This suggests the formation of selenirane intermediates in the above reaction