✦ LIBER ✦
A synthetic approach to crown ether analogs by the remote photocyclization with a pai system of phthalimide and methylthio groups
✍ Scribed by Masao Wada; Hideo Nakai; Yasuhiko Sato; Yuichi Kanaoka
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- French
- Weight
- 214 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
✦ Synopsis
Upon irradiation a homologous series of certain phthalimides (2a-c) possessing a -terminal sulfide function in their N-ply-ether side chain undergo regioselective remote photocyclization affording seven to fifteen-membered crown ether analogs (3a
-c
) in nwderate yields.