| 查看: 469 | 回复: 10 | |||
| 当前主题已经存档。 | |||
[交流]
求助使用Scifinder查找一个化合物的合成方法！（求助成功）
|
|||
|
求助： 由于现在偶不能查Scifinder了，希望能查的虫子帮帮忙，只需要查找下面的一个中间体的合成方法，其它不需要的，查到后直接发到我的邮箱并PM我，谢谢！ CAS：638－32－4 名称：succinamic acid 联系方法：cpucf2004@yahoo.com.cn [ Last edited by cpucf on 2006-4-11 at 08:47 ] |
回复此楼» 猜你喜欢
投稿Elsevier的Neoplasia杂志，到最后选publishing options时页面空白，不能完成投稿
已经有22人回复
-
申请26博士
已经有5人回复
-
职称评审没过，求安慰
已经有22人回复
-
垃圾破二本职称评审标准
已经有15人回复
-
EST投稿状态问题
已经有7人回复
-
毕业后当辅导员了，天天各种学生超烦
已经有4人回复
-
聘U V热熔胶研究人员
已经有10人回复
-
求助文献
已经有3人回复
-
投稿返修后收到这样的回复，还有希望吗
已经有8人回复
-
三无产品还有机会吗
已经有6人回复
 |
2楼2006-04-10 19:38:40
xiangyong02
荣誉版主 (职业作家)
木虫伴我行 我为木虫歌
- 应助: 0 (幼儿园)
- 贵宾: 1.6
- 金币: 7197.8
- 红花: 4
- 帖子: 4710
- 在线: 98.8小时
- 虫号: 204149
- 注册: 2006-03-02
- 性别: GG
- 专业: 有机合成
- 管辖: 博后之家
3楼2006-04-10 19:55:37
4楼2006-04-10 20:02:46
xiangyong02
荣誉版主 (职业作家)
木虫伴我行 我为木虫歌
- 应助: 0 (幼儿园)
- 贵宾: 1.6
- 金币: 7197.8
- 红花: 4
- 帖子: 4710
- 在线: 98.8小时
- 虫号: 204149
- 注册: 2006-03-02
- 性别: GG
- 专业: 有机合成
- 管辖: 博后之家
|
呵呵，给你个结构式 Names and Synonyms Synonyms EINECS 211-331-7 Systematic Name Succinamic acid Registry Numbers CAS Registry Number 638-32-4 System Generated Number 000638324 Formulas Molecular Formula C4-H7-N-O3 Locators File Locator EINECS EU Inv of Exist. Comm. Chem Sub TOXLINE Special NLM TOXLINE Special on TOXNET [ Last edited by xiangyong02 on 2006-4-10 at 20:12 ] |
5楼2006-04-10 20:10:25
6楼2006-04-10 20:16:20
★ ★
cpucf(金币+1):但是好像你不是通过scifinder查的，我需要比较全面的！
小狗(金币+1):多谢参与
cpucf(金币+1):但是好像你不是通过scifinder查的，我需要比较全面的！
小狗(金币+1):多谢参与
|
Bibliographic Information Development of the traceless phenylhydrazide linker for solid-phase synthesis. Stieber, Frank; Grether, Uwe; Waldmann, Herbert. Max-Planck-Institut fuer Molekulare Physiologie Abteilung Chemische Biologie, Dortmund, Germany. Chemistry--A European Journal (2003), 9(14), 3270-3281. Publisher: Wiley-VCH Verlag GmbH & Co. KGaA, CODEN: CEUJED ISSN: 0947-6539. Journal written in English. CAN 139:260976 AN 2003:603211 CAPLUS Abstract The hydrazide group is a new oxidatively cleavable traceless linker for solid-phase chem. It can be readily introduced by hydrazide formation between a carboxy-functionalized resin and different substituted hydrazines. In order to achieve high yields in this step, new carboxylic acid resins were developed that are not prone to undesired imide formation upon activation of the carboxylic acid. The polymer-bound acyl hydrazides were successfully employed in various transformations, namely, Heck, Suzuki, Sonogashira, and Stille couplings, as well as Wittig and Grignard reactions. Traceless release of the coupling products from the solid support is achieved selectively under mild conditions and in high purity by oxidn. of the aryl hydrazides to acyl diazenes with CuII salts or N-bromosuccinimide (NBS) and subsequent nucleophilic attack of the acyl diazene intermediates. Traceless cleavage by oxidn. with NBS can be carried out as a two-step process in which stable acyl diazenes are first generated by treatment with NBS in the absence of a nucleophile. After removal of the reagents by simple resin washing, the traceless release is effected by the addn. of methanol, which leads to products of high purity without any addnl. sepn. steps. Indexing -- Section 25-1 (Benzene, Its Derivatives, and Condensed Benzenoid Compounds) Section cross-reference(s): 27 你要的资料我已经给你发到信箱里面了 |
7楼2006-04-10 21:05:07
8楼2006-04-10 22:02:13
9楼2006-04-10 22:48:15
sangdy
木虫 (著名写手)
- 应助: 4 (幼儿园)
- 贵宾: 2.05
- 金币: 2215.3
- 帖子: 1968
- 在线: 234.8小时
- 虫号: 86985
- 注册: 2005-08-17
- 性别: GG
- 专业: 荧光分析+杂环化学
10楼2006-04-10 23:39:53