1 H, 13 C, and 19 F NMR studies of phencyclone adducts of N-(polyhalophenyl) maleimides: evidence for dynamic NMR in maleamic acids: Ab initio calculations for …

K Marshall, K Rosmarion, O Sklyut, N Azar…

Index: Marshall, Kimberly; Rosmarion, Kerstin; Sklyut, Olga; Azar, Nikolay; Callahan, Ronald; Rothchild, Robert Journal of Fluorine Chemistry, 2004 , vol. 125, # 12 p. 1893 - 1907

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Citation Number: 5

Abstract

NMR methods, including one-and two-dimensional techniques (at 7.05 T) for 1H, 13C and 19F, have been applied to studies of hindered rotations and magnetic anisotropy in some crowded Diels–Alder adducts of phencyclone (1). Symmetrically substituted N-aryl maleimides (2) bearing numerous halogens on the N-aryl ring, were employed as dienophiles to form the target adducts (3). The maleimides included: N-(4-bromo-2, 6- ...