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04:38
Preparation of Contiguous Bisaziridines for Regioselective Ring-Opening Reactions
Published on: July 28, 2022
Benzidine rearrangement reactions of polyether tethered cyclic N,N'-diaryl hydrazides
Hee-Yeon Kim1, Woo-Jin Lee, Hong-Min Kang
1Department of Chemistry, Hanyang University, Seoul, Korea 133-791.
Organic Letters
|July 10, 2007
Summary
N,N'-Diaryl hydrazides with polyether groups undergo benzidine rearrangement. This reaction yields novel 4,4'-diamino-biphenyls (benzidines) featuring a polyether unit.
Area of Science:
- Organic Chemistry
- Polymer Chemistry
Background:
- Benzidine rearrangement is a classic organic reaction.
- Polyether chains can modify molecular properties.
Purpose of the Study:
- To investigate the benzidine rearrangement of N,N"-diaryl hydrazides with meta-tethered polyether groups.
- To synthesize novel polyether-strapped benzidine derivatives.
Main Methods:
- Synthesis of N,N"-diaryl hydrazides with polyether substituents.
- Acid-catalyzed benzidine rearrangement reaction.
- Characterization of the resulting products using spectroscopic techniques.
Main Results:
- The [5,5]-sigmatropic rearrangement proceeded efficiently.
- Formation of 4,4 ahydrodiamino-biphenyls (benzidines) with 2,2 ahydro-polyether linkages.
- Successful synthesis of novel polyether-strapped benzidine compounds.
Conclusions:
- The benzidine rearrangement is a viable route to polyether-functionalized benzidines.
- The introduced polyether units can influence the properties of benzidine derivatives.
- This study expands the scope of benzidine rearrangement applications.
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