Reactivity of 3-nitro-5,6-dihydro-4H-pyran with organoalanes: Preparation of (E)-α, β-ethylenic aldehydes.
摘要:
3-Nitro-5,6-dihydro-4H-pyran reacts with organoalanes and gives 1, 4 addition products. In suitable hydrolysis conditions, the reaction results in the formation of aldehydes that are C-1-homologues of the chain transferred by the alane.