A green route to the synthesis of azo compounds

Authors
Qiao, RZ Zhang, Y Hui, XP Xu, PF Zhang, ZY Wang, XY Wang, YL
Citation
Rz. Qiao et al., A green route to the synthesis of azo compounds, GREEN CHEM, 3(4), 2001, pp. 186-188
Citations number
14
Categorie Soggetti
Chemistry
Journal title
GREEN CHEMISTRY
ISSN journal
14639262 → ACNP
Volume
3
Issue
4
Year of publication
2001
Pages
186 - 188
Database
ISI
SICI code
1463-9262(200108)3:4<186:AGRTTS>2.0.ZU;2-7
Abstract
Polyethylene glycol (PEG, average molecular weight 400) was used as an abso rbent for NO2, the absorptivity was found to reach up to 97%. PEG.NO2, the resulting absorbent product, proved to be a very efficient, clean and moder ate oxidant, It can convert hydrazo derivatives 1 to the corresponding azo compounds 2 for the first time. The spent PEG can be recovered and recycled after the oxidation process.