• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Fifth International Manuel M.Baizer Symposium in Honor of Professor Jean Michel Saveant at the 201st Meeting of the Electrochemical Society Centennial Meeting May 12-17, 2002 Philadelphia, PA, USA >CONVERSIONS OF NITROGEN-CONTAINING HETEROCYCLES INDUCED BY ELECTRON TRANSFER
【24h】

CONVERSIONS OF NITROGEN-CONTAINING HETEROCYCLES INDUCED BY ELECTRON TRANSFER

机译：电子转移诱导的含氮杂环的转化

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The electrochemical reduction of 1-Cl-4-X-phthalazines (X = H, Cl, AlkS, ArS, AlkO, ArO), 7-Cl-5-R-1,2,4-triazolo[3,4]phthalazines (R = CH_3, CH_2Cl, C_6H_4OCH_(3-p), CF_3) in aprotic solvent proceeds with pyridazine ring opening and the formation of nitrile. The initial anion radicals are detected for the symmetric 1,4-bisalkoxy-, bisphenoxy-, bisalkylthio- and bisphenilthiophthalazines but the heterocyclic ring opening was not found out. The process of electrochemical reduction of 1,4-dichloropyridazine, 2,3-dichloroquinoxalin proceeds with step-by-step elimination of both chlorine atoms with formation of unsubstituted heterocycles. The irreversible reduction of 3,4-dichloro-1,2,5-thiadiazole leads to disintegration of heterocycle and formation of four inorganic ions. The reduction of 3-X-4-Y-1,2,5-thiadiazole (X = Cl, OAr, Y = H, OAr, morpholine, piperidine) results in elimination of the substituents from a position 3 and in opening of thiadiazole cycle with the formation of iminonitrile.
机译：1-Cl-4-X-酞嗪（X = H，Cl，AlkS，ArS，AlkO，ArO），7-Cl-5-R-1,2,4-三唑并[3,4]酞嗪的电化学还原非质子溶剂中的（R ＝ CH_3，CH_2Cl，C_6H_4OCH_（3-p），CF_3）随着哒嗪开环并形成腈而进行。检测到对称的1，4-双烷氧基-，双苯氧基-，双烷硫基-和双苯硫基噻吩嗪的初始阴离子自由基，但未发现杂环开环。 1,4-二氯哒嗪，2,3-二氯喹喔啉的电化学还原过程是逐步消除两个氯原子并形成未取代的杂环。 3,4-二氯-1,2,5-噻二唑的不可逆还原导致杂环的崩解和四个无机离子的形成。 3-X-4-Y-1,2,5-噻二唑的还原反应（X = Cl，OAr，Y = H，OAr，吗啉，哌啶）导致3位取代基的消除和噻二唑的打开循环形成亚胺腈。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号