Tetrahedron Letters p. 3745 - 3748 (1998)
Update date:2022-09-26
Topics:
Ooi, Takashi
Saito, Akira
Maruoka, Keiji
Dilithium 2,2'-methylenebis(4,6-di-tert-butylphenoxide) can be successfully utilized as a bidentate Lewis acid for simultaneous coordination to carbonyl groups, thereby accelerating the Diels-Alder reactions. The double activation ability of the bidentate lithium reagent toward carbonyls is emphasized in comparison with the corresponding monodentate lithium reagent.
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