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Coformational aspects of polypeptide structure XL. The synthesis of poly[(S)-thiazolidine-4-carboxylic acid]

✍ Scribed by Murray Goodman; Kai-Chiang Su

Publisher
Wiley (John Wiley & Sons)
Year
1972
Tongue
English
Weight
371 KB
Volume
11
Category
Article
ISSN
0006-3525

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✦ Synopsis

Abstract

The synthesis of poly[(S)‐thiazolidine‐4‐carboxylic acid] is described. The polymer is obtained by the polymerization of the N‐carboxyanhydride of (S)‐thiazolidine‐4‐carboxylic acid in pyridine or nitrobenzene using triethylamine as an initiator. The amino acid is prepared by the condensation of cysteine and formaldehyde. N‐Acetyl‐(S)‐thiazolidine‐4‐carboxylic acid methyl ester is also prepared as a model compound by standard acetylation and esterification reactions.

📜 SIMILAR VOLUMES

Conformational aspects of polypeptide st
Conformational aspects of polypeptide structure. XLI. Crystal structure of S-thiazolidine-4-carboxylic acid and helical structure of poly[(S)-thiazolidine-4-carboxylic acid]
✍ Murray Goodman; Vera Chen; Ettore Benedetti; Carlo Pedone; Paolo Corradini 📂 Article 📅 1972 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 438 KB 👁 1 views

## Abstract The helical structures of poly[(__S__)‐thiazolidine‐4‐carboxylic acid], in the __cis__ and __trans__ forms, were redetermined by using the new sets of bond angles and bond lengths established by X‐ray diffraction analysis of L‐thioproline. Calculations of the helical structures of poly‐