𝔖 Bobbio Scriptorium
✦   LIBER   ✦

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

No coin nor oath required. For personal study only.

✦ 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.


📜 SIMILAR VOLUMES


Syntheses with stable isotopes: Pyridine
✍ Thomas W. Whaley; Donald G. Ott 📂 Article 📅 1974 🏛 John Wiley and Sons 🌐 French ⚖ 126 KB

## 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: Benzidin
✍ Thomas W. Whaley 📂 Article 📅 1978 🏛 John Wiley and Sons 🌐 French ⚖ 220 KB

## Abstract Benzidine‐^15^N~2~ was prepared from 4,4′‐biphenyldicarboxamide‐^15^N~2~ by the Hofmann amide degradation. The diamide, in turn, was obtained from 4,4′‐biphenyldicarbonyl chloride and ammonium‐^15^N sulfate. An overall yield of 30–35% was obtained for the two steps. An attempted synthes

Syntheses with stable isotopes: Urea-13C
✍ Thomas W. Whaley; Donald G. Ott 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 French ⚖ 178 KB

## Abstract Urea has been prepared from the reaction of carbon monoxide and ammonia in the presence of sulfur. The reaction has been applied to the synthesis of urea‐^13^C, urea‐^12^C, and urea‐^13^C‐^15^N~2~.

Syntheses with stable isotopes: Synthesi
✍ D. L. Hachey; P. A. Szczepanik; O. W. Berngruber; P. D. Klein 📂 Article 📅 1973 🏛 John Wiley and Sons 🌐 French ⚖ 448 KB

## Abstract A series of 5β‐cholanic acids labeled with deuterium in the A ring were prepared by exchange labeling of the corresponding ketone by column chromatography on deuterated alumina. Factors affecting yield and labeling efficiency are discussed. 5β‐Cholanic acids labeled with ^13^C in the ca

Syntheses with stable isotopes: D-glucos
✍ D. L. Williams; T. W. Whaley 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 French ⚖ 430 KB

## Abstract The synthesis of a mixture of D‐glucose‐6‐^13^C and 1,6‐anhydro‐β‐L‐idopyranose‐6‐^13^C and their resolution by column chromatography are described. The Kiliani reaction of hydrogen cyanide‐^13^C with 5‐aldo‐1, 2‐0‐isopropylidene‐D‐xylo‐pentofuranose afforded epimeric cyanohydrins. Rapi

Syntheses with stable isotopes: Oleic-1-
✍ T. W. Whaley; G. H. Daub; R. D. Walker; D. L. Williams 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 French ⚖ 438 KB

## Abstract A synthesis of oleic‐1‐^13^C acid and its conversion to triolein‐1′,1″,1″′‐^13^C~3~ are described. 9‐Octadecynenitrile‐1‐^13^C was prepared from 1‐bromo‐8‐heptadecyne and sodium cyanide‐^13^C. Hydrolysis afforded stearolic‐1‐^13^C acid, which was reduced to oleic‐1‐^13^C acid by the act