𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Easy synthesis of a new C2-symmetric diaza-crown ether from L-threonine

✍ Scribed by Jean-Pierre Joly; Gerhard Schröder


Publisher
Elsevier Science
Year
1997
Tongue
French
Weight
100 KB
Volume
38
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

✦ Synopsis


The 1:1-cyclocondensation of a contrafunctional chiral amine easily obtained from L-threonine in four steps yielded the new C2-symmetric diaza-crown ether 5.


📜 SIMILAR VOLUMES


A new nitrone from C2 symmetric piperidi
✍ Alberto Brandi; Stefano Cicchi; Valentina Paschetta; Domingo Gomez Pardo; Janine 📂 Article 📅 2002 🏛 Elsevier Science 🌐 French ⚖ 106 KB

The oxidation of a C 2 symmetric piperidine, obtained through a ring enlargement process of the enantiopure protected (4R)-hydroxy-(2S)-hydroxymethyl pyrrolidine, is reported. Oxidation with C-phenyl-N-phenylsulfonyloxaziridine afforded the corresponding nitrone that is too unstable for isolation an