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Title:	Crystal Structure, Conformational Analysis, and Charge Density Distribution for Eng-Epifisetinidol: An Explanation for Regiospecific Aromatic Substitution of 5-Deoxyflavan
Author(s):	Tobiason, Fred L.; Fronczek, Frank R.; Steynberg, Jan P.; Steynberg, Elizabeth C.; Hemingway, Richard W.; Mattice, Wayne L.
Date:	1993
Source:	Tetrahedron 49(27):5927-5940
Description:	Molecular modeling and molecular orbital analyses of ent-epifisetinidol gave &ood predictions of the approximate "reverse half-chair" conformation found for the crystal structure. MNDO and AM1 analyses of HOMO electron densities provided an explanation for the stereospecific electrophilic aromatic substitution at C(6) in 5-deoxy-flavans.
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