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Asymmetric induction in the creation of tri- and tetra-substituted carbon stereocentres by the intramolecular heck reaction

✍ Scribed by Ronald Grigg; M.J.R. Dorrity; J.F. Malone; Theeravat Mongkolaussavaratana; W.D.J.Amilaprasadh Norbert; Visuvanathar Sridharan

Publisher: Elsevier Science
Year: 1990
Tongue: French
Weight: 119 KB
Volume: 31
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)89029-2

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✦ Synopsis

A preliminary survey of the use of aminoethers as chiral auxiliaries, in combination with both chiral and achiral phosphines, for palladium catalysed cyclisations is reported. A 55% d.e. was observed for a process creating a tetrasubstituted carbon centre and >95% d.e. for a process creating a trisubstituted carbon centre.

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