Stereocontrolled synthesis of oxygen-bridged polycycles via intermolecular [3+2] cyclization of platinum-bound pyrylium with alkenes

  • Oh, Chang Ho
  • Yi, Hyun Jik
  • Lee, Ji Ho
  • Lim, Dong Hee
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초록

2-(3-Benzyloxy)prop-1-ynyl)benzaldehyde with PtCl(2) in toluene would form Pt-pyryliums that underwent [3+2] cycloaddition with alkenes to the oxygen-bridged (5H-benzo[7]annulen-5-ylidene) platinum(II) intermediates with good stereoselectivities. Their tandem rearrangement afforded diverse types of polycycles depending on the electronic nature of the alkenes.

키워드

CATALYZED 4+2 BENZANNULATIONCONTAINING CARBONYL YLIDESPLATINUM(II)-CATALYZED REACTIONVINYL ETHERSCYCLOADDITIONDERIVATIVESINSERTION2-ALKYNYLBENZOATESCONSTRUCTIONHETEROCYCLES
제목
Stereocontrolled synthesis of oxygen-bridged polycycles via intermolecular [3+2] cyclization of platinum-bound pyrylium with alkenes
저자
Oh, Chang HoYi, Hyun JikLee, Ji HoLim, Dong Hee
DOI
10.1039/c001495h
발행일
2010-03
유형
Article
저널명
Chemical Communications
46
17
페이지
3007 ~ 3009