反应详情

The neat crystals of N-tert-butyl-N-ethoxalyl-o-phenylene diamine (88 g) were heated to 100° C. for 4 h. The crude product hereby deposited from the melt as crystals. After cooling to ambient temperature the solid taken in ether and the product was filtered off as white crystals, m.p. >300° C.

1. filtrationthe product was filtered off as white crystals, m.p. >300° C.