首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到6条相似文献,搜索用时 15 毫秒
1.
In this work study, we investigated possibility of modifying the new Michaelis Allen, Milobendzky-Shulgin, Michaelis-Becker, Raymond reactions with organic compounds of arsenic, antimony and bismuth is discovered. A new mechanism for possible reactions has been proposed.  相似文献   

2.
It is discovered a new three-, four-component Petasis, Passerini, Hantzsch, Kabachnic-Fields, Ugi reactions with of arsine, stibine and bismuthine in organometallic chemistry. Modifications were replaced to a nitrogen atom of classical reactions of atoms of phosphorus, arsenic, antimony and bismuth. It has been proposed a new mechanism for possible reactions.  相似文献   

3.
We explored new approaches to replace the nitrogen atoms of arsenic, antimony, bismuth, and discovered a new paths to modify Raschig, Schiff, Andrusov, Hofmann, Colbe, Delepine reactions with arsine, stibine and bismuthine in organometallic chemistry. We have proposed a new mechanism for possible reactions.  相似文献   

4.
A new approach modification reactions Atherton-Todd, Betty, Mannich and Doebner reactions with of arsine, stibine and bismuthine have been proposed in organometallic chemistry of these elements. These new reactions can be used for the synthesis of drugs and biologically active organic compound of arsenic, antimony and bismuth. A possible new mechanism of the reaction is proposed.  相似文献   

5.
综述了国内外关于聚烯烃产品气味方面的研究现状,归纳出气味的主要来源,并介绍了主要的检测方法。聚烯烃气味主要来自于聚合过程残余的单体、溶剂,造粒或者成型过程中氧化降解生成的醛、酮、烃等挥发物,以及添加的助剂组分。可以用便携式设备对挥发物进行快速检测,也可以用各种手段将挥发物收集后用色谱-质谱联用进行定量定性分析。指出针对不同的气味来源可以采用改进生产装置和工艺流程,加入气味抑制剂、吸附剂等措施降低聚烯烃产品的气味。  相似文献   

6.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号