Diastereoselection in the intramolecular diels-Alder reaction of o-quinodimethanes
An efficient diastereoselective synthesis of 2 is presented. A key feature is the intramolecular Diels-Alder reaction of o-quinodimethanes intermediates 3 derived from benzocyclobutenes 4 in which the exotransition state is favored by incorporation of an amide functionality.
Basha,McClellan,DeBernardis
p. 5469 - 5472
(2007/10/02)
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