Sm. Li et al., An investigation of 2,4 '-dihydroxy-3,3 '-dimethoxy-5 '-methylstilbene using X-ray crystallography and NMR spectroscopy, ACT CRYST C, 55, 1999, pp. 1012-1014
The E and Z forms of the title compound, C17H18O4, were examined by C-13 NM
R and H-1 NMR spectroscopy, and the crystal structure of the E form (m.p. 3
97-398 K) was determined by X-ray crystallography. Earlier reported spectra
l data for these two isomeric stilbenes are complemented or revised on the
basis of these results.