Tetrahedron p. 3313 - 3319 (1985)
Update date:2022-08-10
Topics:
Brussee, J.
Groenendijk, J. L. G.
Koppele, J. M. te
Jansen, A. C. A.
The oxidative dimerization of 2-naphtol is studied by means with several copper(II)amine complexes as oxidants.Using primary amines a chemical yield of 95percent-98percent is obtained.Using (+)-amphetamine as complexing amine a 94percent-96percent optically pure product is obtained.It is established that htis stereoselectivity is a result of selective precipitation of the copper(II)-(+)-amphetamine-(-)-binaphtol complex with a simultaneous racemization of the (+)-binaphtol.
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(1994)
