## Abstract The acid‐catalyzed condensation of either 2‐ethoxy‐3,4‐dihydro‐2__H__‐pyran or pentanedial (glutaraldehyde) with ammonium‐^15^N chloride in the presence of methylene blue is a convenient one‐step synthesis of pyridine‐^15^N.
Syntheses with stable isotopes: 4-Ethylsulfonyl-l-naphthalenesulfonamide- 15N
✍ Scribed by Thomas W. Whaley; Guido H. Daub
- Publisher
- John Wiley and Sons
- Year
- 1977
- Tongue
- French
- Weight
- 211 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0022-2135
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✦ Synopsis
Abstract
The title compound was prepared from 4‐ethylthio‐1‐naphalenesulfonyl chloride in a two‐step synthesis with an overall yield of 56%. An alternative one‐step synthesis from 4‐ethylsulfonyl‐1‐naphthalenesulfonyl chloride was found to be unsuitable for nitrogen labeling.
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