bromination

1.Bromacil was synthesized using 2-bromobutane and urea as the starting materials in three steps including condensation,cyclization and bromination with total yield of 61%.

以2-溴丁烷和尿素作为起始原料,经缩合、环化、溴代三步得到除草定,总收率为61%。

2.The title resin has been prepared by Friedel-Crafts acylation followed by bromination and amination.The method avoids the utilization of cancerogenic chloromethyl methyl ether.

通过付氏酰化入酰，溴化、胺化，得到标题树脂。该法避免了使用氯甲醚。