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Syntheses of 2,6-DI-t-Butylpyridine-3-and −4–sulphonic acids

✍ Scribed by H. C. van der Plas; H. J. den Hertog

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
571 KB
Volume
81
Category
Article
ISSN
0165-0513

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✦ Synopsis

Abstract

Syntheses of 2,6‐di‐t‐butylpyridine‐3‐ and −4‐sulphonic acids proving the structure of these compounds are described. They were carried out in order to confirm that during the sulphonation of 2,6‐di‐t‐butylpyridine at low temperature the sulphonic acid group enters the 3‐position.

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Synthesis of the isomeric sulphonic acid
Synthesis of the isomeric sulphonic acids of 2,6-di-tert.-butylpyridine
✍ H.C. van der Plas; H.J. den Hertog 📂 Article 📅 1960 🏛 Elsevier Science 🌐 French ⚖ 214 KB

SOME time ago we have shown that the sulphonic acid obtained in the remarkable sulphonation of 2,6-di-tert.-butylpyridine (I) with sulphur trioxide in liquid sulphur dioxide at -10' according to Brown and Kanner -1 is not the b-derivative (III) as suggested by these investigators but the 34erivative