Figure 2
A stepwise model of the synthesis of 4,11-diphenylbisanthene (IV). The by-product V was identified and determined in Arabei & Pavich (2004). The molecular conformation and crystal structure of by-products VI and VII were unknown prior to their determination by the 3D ED method. For each product of the reaction, the formula, molecular weight (M) and yield (in bold) are reported. |