24小时热门版块排行榜    

北京石油化工学院2026年研究生招生接收调剂公告
查看: 444  |  回复: 2

blue3585

新虫 (初入文坛)

[求助] 2―氨基乙醇乙酰化

请教各位,2―氨基乙醇乙酰化如何只乙酰化羟基

@lifeliuyan 发自小木虫Android客户端
回复此楼
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

creoluphus

新虫 (小有名气)

2-Acetyloxyethylamine (6). A 10.0 g portion of 2-hydroxyethylamine hydrochloride was placed in a 500 mL flask, followed by addition of 7.5 mL of acetic acid and 30 mL of acetyl chloride. The reactants were stirred, and occurrence of reaction was evident by evolution of heat. The reaction mixture was cooled by immersing the flask in ice-water, as needed. The reaction was stirred at room temperature overnight, and the excess acetyl chloride and acetic acid were removed under vacuum. The product was crystallized from absolute ethanol, and crystals were collected and dried with heat (70-80 °C) to collect pure 6 (12.35 g, yield 86.25%). 1H NMR (300 MHz, DMSO-d6) δ 8.34 (s, 3H, NH3+), 4.20 (t, J = 5.2 Hz, 2H, CH2), 3.03 (t, J = 5.3 Hz, 2H, CH2), 2.04 (s, 3H, CH3).
2楼2016-11-30 16:29:26
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

blue3585

新虫 (初入文坛)

引用回帖:
2楼: Originally posted by creoluphus at 2016-11-30 16:29:26
2-Acetyloxyethylamine (6). A 10.0 g portion of 2-hydroxyethylamine hydrochloride was placed in a 500 mL flask, followed by addition of 7.5 mL of acetic acid and 30 mL of acetyl chloride. The reactant ...

谢谢,我不是做实验要用,而是一道简答题,请问知道答案吗

发自小木虫Android客户端
3楼2016-11-30 17:17:15
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 blue3585 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
[考研] 学硕274求调剂 +12 Li李鱼 2026-03-26 12/600 2026-03-31 03:56 by fmesaito
[考博] 材料专业申博 +3 杜雨婷dyt 2026-03-29 3/150 2026-03-31 02:04 by nxgogo
[考研] 083000环境科学与工程调剂,总分281 +4 橙子(胜意) 2026-03-30 4/200 2026-03-31 00:44 by Linzejun
[考研] 食品工程专硕一志愿中海洋309求调剂 +5 小张zxy张 2026-03-26 10/500 2026-03-31 00:29 by jp9609
[考研] 求调剂,一志愿 南京航空航天大学 ,080500材料科学与工程学硕,总分289分 +9 @taotao 2026-03-29 9/450 2026-03-30 22:29 by 我是小康
[考研] 26考研-291分-厦门大学(085601)-柔性电子学院材料工程专业求调剂 +5 min3 2026-03-24 6/300 2026-03-30 18:42 by 544594351
[考研] 293求调剂 +3 末未mm 2026-03-30 5/250 2026-03-30 17:23 by 王保杰33
[考研] 329求调剂,一志愿西北工业大学,材料工程(085601) +5 小小机灵虫 2026-03-29 11/550 2026-03-30 15:02 by Wang200018
[考研] 332求调剂 +6 Lyy930824@ 2026-03-29 6/300 2026-03-30 10:53 by 1172367218
[考研] 275求调剂 +15 Micky11223 2026-03-25 20/1000 2026-03-29 20:44 by 唐沐儿
[考研] 071000生物学求调剂,初试成绩343 +7 小小甜面团 2026-03-25 7/350 2026-03-28 20:25 by 唐沐儿
[考研] 283求调剂 +7 A child 2026-03-28 7/350 2026-03-28 12:05 by zllcz
[考研] 材料求调剂一志愿哈工大324 +7 闫旭东 2026-03-28 9/450 2026-03-28 08:51 by Xu de nuo
[考研] 286求调剂 +4 丢掉懒惰 2026-03-27 7/350 2026-03-28 08:07 by baoball
[考研] 化学调剂 +4 爱吃番茄的旭 2026-03-24 5/250 2026-03-27 17:50 by kiokin
[考研] 308求调剂 +7 墨墨漠 2026-03-25 7/350 2026-03-27 14:47 by 狂炫麦当当
[考研] 298调剂 +3 jiyingjie123 2026-03-27 3/150 2026-03-27 11:57 by wxiongid
[考研] 求调剂 一志愿 本科 北科大 化学 343 +6 13831862839 2026-03-24 7/350 2026-03-26 22:57 by 不吃魚的貓
[考研] 085602化学工程求调剂。 +4 平乐乐乐 2026-03-26 4/200 2026-03-26 17:57 by fmesaito
[考研] 一志愿天津大学339材料与化工求调剂 +3 江往卖鱼 2026-03-26 3/150 2026-03-26 09:42 by 王小欠i
信息提示
请填处理意见