A ferrocenyl kaleidoscope: slow interconversion of six diastereo-atropisomers of 2,6-di-tert-butyl-9,10-diferrocenyltriptycene.

Abstract

The title triptycene, 6, has been isolated as the product of 9,10-cycloaddition of benzyne to 9,10-diferrocenyl-2,6-di-tert-butylanthracene, 5, whose X-ray crystal structure is reported. Each ferrocenyl unit in 6 has access to the same three non-equivalent molecular environments, and their rotations relative to the molecular paddlewheel give rise to six… (More)
DOI: 10.1002/chem.201405968

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