| 查看: 185 | 回复: 3 | |||
| 当前主题已经存档。 | |||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | |||
wjh686木虫 (小有名气)
|
[交流]
关于“甘氨酸酰胺的合成”
|
||
|
从甘氨酸合成甘氨酸酰胺有没有不用保护氨基直接合成的方法！有知道的说下吧！ 文件名: 未命名.bmp 描述: 方程式.bmp 下载链接: http://www.fs2you.com/files/a6aeca00-fa57-11dc-b6ac-0014221b798a/ 预览:  [ Last edited by wjh686 on 2008-3-25 at 19:00 ] |
回复此楼» 猜你喜欢
哪位老哥知道今年的国自然具体哪一天放榜？
已经有9人回复
-
欢迎发来filecode的Mz6后的代码验证其规律
已经有72人回复
-
咱们一起用铁证分析2026国家社科基金中标与否
已经有26人回复
-
我的国基提前知道中了，可是同事的操作让我实在接受不了，怎么会有这样的人
已经有16人回复
-
有时候，自然基金真的不能太认真 （我的申报经验）
已经有12人回复
-
招聘 金属平磨液，抛光液研发工程师
已经有3人回复
-
时间戳又变了8-15
已经有23人回复
-
filecode=后面第一个是大写字母
已经有7人回复
-
filecode
已经有12人回复
-
小木虫上这么多卖论文的，真有人买论文么？感觉没必要啊
已经有13人回复
★ ★ ★ ★ ★
wjh686(金币+5,VIP+0):谢谢！！！
wjh686(金币+5,VIP+0):谢谢！！！
|
1-propanesulfonic acid (Compound GN); L-Phenylglycine amide hydrochloride (1.0 g, 6.7 mmol) was treated with a solution of K2CO3 (20 mL). The resultant mixture was extracted with EtOAc (3.x.20 mL). The organic extracts were separated, combined, dried over Na2SO4. The solid material was removed by filtration, and the filtrate was concentrated to dryness under reduced pressure. To a solution of L-Phenylglycine amide (670 mg, 5.9 mmol) in tetrahydrofuran (10 mL) and 1,4-dioxane (4 mL) was added 1,3-propanesultone (674 mg, 5.6 mmol). The solution stirred at reflux for 2 hours. The reaction was cooled to room temperature. The solid was collected by filtration and washed with acetone (2.x.20 mL). The solid was dissolved in 50percent water/EtOH mL). Dowex Marathon C ion exchange resin (strongly acidic) was added to the solution. The suspension was stirred for 15 minutes before the resin was removed by filtration. The filtrate was evaporated under reduced pressure. The solid was suspended in acetone (50 mL), filtered and dried in the vacuum oven (50.deg. C.), affording the title compound (743 mg, 50percent). Publ.: US2006/223855 A1 (2006/10/05), Appl.: US2005-316693 (2005/12/21) 参照一下这个专利，我想你会有收获得 |
4楼2008-03-30 15:19:51
2楼2008-03-30 15:07:09
3楼2008-03-30 15:18:39
