Synthesis of novel optically active poly
✍
Shadpour Mallakpour; Elaheh Kowsari
📂
Article
📅
2006
🏛
John Wiley and Sons
🌐
English
⚖ 128 KB
👁 2 views
## Abstract 4,4′‐Hexafluoroisopropylidene‐2,2‐bis(phthalic acid anhydride) (1) was treated with L‐methionine (2) in acetic acid and the resulting 4,4′‐(hexafluoroisopropylidene)‐__N,N__′‐bis(phthaloyl‐L‐methionine) diacid (4) was obtained in high yields. The direct polycondensation reaction of this