精品久久久久久中文字幕_无码中文字幕色专区_成人黄色在线观看视频_国内外免费激情视频_伦伦影院午夜理论片_亚洲色在线视频_涩视频在线观看_日韩精品高清在线观看_中文字幕第4页_日韩高清人体午夜_亚洲天堂网在线观看视频_91精品入口蜜桃

The existing production process of methyl octabromoether is similar to octabromoether, including three steps of synthesis: ① synthesis of tetrabromobionic acid A by bromination from bisphenol A; ② Tetrabromobisphenoic acid A reacts with allyl, or 2-methyl allyl halide to produce tetrabromobisphenol A diallyl ether, referred to as tetrabromoether intermediate; ③ Tetrabromoether is then added with bromine to obtain octabromoether or methyl octabromoether.