24小时热门版块排行榜    

查看: 569  |  回复: 2

喻魔风

新虫 (初入文坛)

[求助] 2,5-二氯二苯甲酮的合成与应用

2,5-二氯二苯甲酮的合成与应用 要写综述找不到材料  急急急  求帮助

[ 发自手机版 http://muchong.com/3g ]

[ Last edited by 喻魔风 on 2013-6-25 at 12:34 ]
回复此楼

» 猜你喜欢

» 本主题相关商家推荐: (我也要在这里推广)

» 本主题相关价值贴推荐,对您同样有帮助:

无所畏惧
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

jsczlimin

金虫 (正式写手)

【答案】应助回帖


493070060: 金币+1, 鼓励交流,欢迎常来精化版! 2013-07-11 14:05:12
zhoupeng87: 应助指数+1 2013-07-12 08:22:42
对二氯苯1.5三氯化铝1.2苯甲酰氯1 。 滴加酰氯,吸收氯化氢,慢慢升温至150度至无氯化氢。到入5倍量水中。油层用甲醇重结晶。
2楼2013-07-11 13:43:26
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

tangfh1973

铁杆木虫 (著名写手)

★ ★ ★ ★ ★
zhoupeng87: 金币+5, 欢迎交流 2013-07-30 08:01:08
2,5-Dichlorobenzophenone
To a 22 L, three-necked flask fitted with a thermometer, mechanical stirrer and a Vigreux column connected to an aqueous NaOH scrubbing tower, was added 1,4-dichlorobenzene (3 Kg, 26.4 mol) and benzoyl chloride (2.6 Kg, 18.55 mol).
The mixture was heated to 80° C. to give a homogeneous solution.
Aluminum chloride (5.5 Kg, 41.25 mol) was added over 12 min. with stirring. (The molar ratio of reactants was 2.2:1.4:1.0 (AlCl3: Dichlorobenzene:Benzoyl Chloride)).
The resulting mixture was heated to 140° C. over 60 min followed by heating to 175° C. over 30 min.
Heating was stopped at 175° C.
The mixture was allowed to cool to 80° C. over two hours and poured into a well stirred mixture of ice and water (ca. 25 L water and 15 Kg of ice) over 30 min.
The organic solid was collected by filtration and dissolved in 7 L of toluene.
The solution was washed with aqueous sodium bicarbonate and dried.
Toluene was removed by distillation.
Pure 2,5-dichlorobenzophenone was isolated in 80percent yield after recrystallization from hexane and toluene.
Gas chromatography indicated an absolute yield of 97percent.
人生,幸福不是目的,美德才是准绳
3楼2013-07-29 10:54:26
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 喻魔风 的主题更新
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[基金申请] 奇怪,两个人的filecode固定段从头到尾一模一样 +5 布布和一二 2026-08-10 5/250 2026-08-11 09:17 by xiaruohan
[基金申请] 帮忙看看fileCode +6 wwncly 2026-08-10 11/550 2026-08-11 09:14 by xiaruohan
[基金申请] FileCode能看出啥? +7 要乐观耀哥 2026-08-10 16/800 2026-08-11 08:18 by wmfsnow
[基金申请] 小木虫上这么多卖论文的,真有人买论文么?感觉没必要啊 +4 Tide man 2026-08-10 4/200 2026-08-11 07:45 by emeraldine
[基金申请] 基金中了 +15 laoda193707 2026-08-06 15/750 2026-08-11 00:11 by jiafei2190
[基金申请] 确定了,国自然21号放榜 +6 布布和一二 2026-08-10 7/350 2026-08-10 19:15 by 2000zf36392
[基金申请] 关于代码变化问题,想知道的进来 +17 且听虎啸 2026-08-07 24/1200 2026-08-10 18:35 by zhangduo2008
[基金申请] 应该是93bebmhtak前后十一个字符比较关键 +14 Lanmanbaby 2026-08-09 22/1100 2026-08-10 14:57 by wwncly
[基金申请] 据悉今年马上要出结果了 +7 瞬息宇宙 2026-08-10 8/400 2026-08-10 12:42 by Vivilian
[基金申请] 2026国自然放榜时间 +9 布布和一二 2026-08-08 9/450 2026-08-10 11:22 by xxxx2020
[基金申请] 面上项目filecode邪修 +5 西山十月 2026-08-09 7/350 2026-08-10 07:32 by 仁砚薪传
[基金申请] fileCode有新解读? +10 Tide man 2026-08-08 18/900 2026-08-09 12:55 by 仁砚薪传
[基金申请] 国基金的申报应该改成非等额制,评价高的钱多评价低的钱少,但是增加资助率 +7 a089 2026-08-07 7/350 2026-08-08 18:05 by gltch
[基金申请] 关于filecode +4 布布和一二 2026-08-07 7/350 2026-08-07 22:55 by zhanghaozhu
[基金申请] 固定端突然变了,今天 +6 archvillain 2026-08-06 10/500 2026-08-07 16:03 by 医学老男孩
[基金申请] 听说今天filecode变了 +24 布布和一二 2026-08-06 47/2350 2026-08-07 16:02 by zhiyanjiang
[基金申请] filecode +14 等待解的谜 2026-08-06 19/950 2026-08-07 12:20 by wlwhappy
[基金申请] filecode +8 布布和一二 2026-08-06 11/550 2026-08-06 20:41 by tangpu318
[基金申请] 影响面上的因素 +8 布布和一二 2026-08-05 11/550 2026-08-06 10:41 by 宝贝虫子
[基金申请] 好消息?这个有何含义??? +8 Tide man 2026-08-05 10/500 2026-08-05 16:14 by xmuxiaoyu
信息提示
请填处理意见