The oxidative ring opening reaction of ethylene episulfoxide by copper(II) halides
β Scribed by Kiyosi Kondo; Akira Negishi; Gen-ichi Tsuchihashi
- Publisher
- Elsevier Science
- Year
- 1969
- Tongue
- French
- Weight
- 203 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0040-4039
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## Abstract The eightβshaped poly(ethylene oxide) (PEO) is synthesized by a combination of Glaser coupling with ringβopening polymerization (ROP). Firstly, the starβshaped **(PEOβOH)**~**4**~ is synthesized by ROP of ethylene oxide (EO) using pentaerythritol as an initiator and diphenylmethyl potas
The efficient cyclization reactions of the N-methanesulfonyl or N-ethoxycarbonyl derivatives of 2-ethynylanilines, functionalized on the benzene ring and/or the acetylene terminal into indoles catalyzed by either Cu(OTf) 2 or Cu(OAc) 2 are accomplished. The application of this reaction to the tandem