Found: C, 70.54; H, 9.83. The bromocaumaran VIc (0.33 8.) and cyclohexyl bromide (0.22 9.) in ether (10 cc.) was stirred with magnesium (0.163 9.) while the magnesium was reacting with ethyl bromide (0.21 9.) in ether (10 cc.). The procedure and processing of the reacQon mixture were carried out as described above in the preparation of Ib. Th: crude product was distilled from a pot-still at 170-200 (bath temperature) under 0.001 mm.; the orange ...
