C. Moustrou et al., SYNTHESIS OF THIOPHENE-SUBSTITUTED 3H-NAPHTHO[2,1-B]PYRANS, PRECURSORS OF PHOTOMODULATED MATERIALS, Helvetica chimica acta, 81(7), 1998, pp. 1293-1302
The synthesis of H-3-naphtho[2,1-b]pyrans 9-21 linked to a thiophene m
oiety is described. Two different synthetic approaches were applied to
prepare these novel functionalized compounds, and their spectrokineti
c properties in solution are reported.