Synthese de composes dihydro-2,3 furanniques par hydroboration d'alcools β-acetyleniques
作者:Gilbert Dana、Bruno Figadère、Estera Touboul
DOI:10.1016/s0040-4039(01)80919-9
日期:1985.1
Hydroboration of β-acetylenic alcohols followed by NaOH/H2O2 oxidation leads to hemiacetals of γ-aldols which are easily dehydrated to 2,3-dihydrofuran compounds. The reaction gives good yields with hindered alcohols and its stereochemistry may be controlled during the organometallic synthesis of the starting alcohol.
β-炔醇的硼氢化反应,然后进行NaOH / H 2 O 2氧化,导致生成的γ-醛缩醛半缩醛容易脱水成2,3-二氢呋喃化合物。该反应在受阻醇的作用下具有良好的收率,并且可以在起始醇的有机金属合成过程中控制其立体化学。