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Stereoselective Zirconocene-Mediated Ring Transformation of 2-Vinylheterocycles to Vinylcarbocycles.

โœ Scribed by Yuji Hanzawa; Hiromichi Kiyono; Takeo Taguchi


Publisher
John Wiley and Sons
Year
2004
Weight
167 KB
Volume
35
Category
Article
ISSN
0931-7597

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ChemInform Abstract: New โ€œCp2Zrโ€-Mediate
โœ Y. HANZAWA; H. KIYONO; N. TANAKA; T. TAGUCHI ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› John Wiley and Sons โš– 30 KB

New "Cp2Zr"-Mediated Ring Transformations of 2-Vinylheterocycles to Carbocycles. -2-Vinylheterocycles undergo a novel ring transformation mediated by Cp2ZrCl2 via an intramolecular allylation of Z-allylic zirconocene species. The epoxide or aziridine intermediates thus obtained rearrange mainly to c