A mixture of I11 (6 g.) and powdered sulfur (2.7 g.) was heated for four hours at 200-250'in an oil-bath. The resultant very dark product was distilled with steam, the cadalene coming Over as a ye~~ ow-brown oil which was collected and dried in ether and eventually distilled in vacuo, being thus obtained as a pale yellow oil (4.8 g., 81%) SYDNEY, AUSTRALIA RECEIVED JULY 5, 1949
