Transition-metal-catalyzed hydroformylation has become an essential tool for the synthesis of aldehydes. In this paper, we highlight several examples of synthetically useful applications of homogeneous and heterogeneous rhodium-catalyzed hydroformylation, as well as several examples of tandem processes involving hydroformylation as a reaction step developed in our laboratory.
Diastereoselective Synthesis of Hexahydropyrrolo[2,1-b]oxazoles by a Rhodium-Catalyzed Hydroformylation / Silica-Promoted Deformylation Sequence
作者:Maxym Vasylyev、Howard Alper
DOI:10.1002/anie.200802550
日期:2009.2.2
Fleetingly formyl: A new rhodium‐catalyzed hydroformylation reaction of N‐allyl oxazolidines, carried out under a CO/H2 atmosphere, followed by a diastereoselective deformylative cyclization affords hexahydropyrrolo[2,1‐b]oxazoles in good yields. The reaction proceeds by a unique hydroformylation–deformylation sequence in which the formyl group virtually substitutes for the CH2O} fragment of the
迅速的甲酰基:在CO / H 2气氛下进行的新的铑催化的N-烯丙基恶唑烷的加氢甲酰化反应,然后进行非对映选择性的甲酰基化环化反应,可得到高产率的六氢吡咯并[2,1- b ]恶唑。通过其中甲酰基几乎替代为CH一个唯一的加氢甲酰化-脱甲酰序列反应进行2 ø}恶唑烷杂环的片段。