## Abstract Rhodium‐catalyzed carbonylation of methanol at mild temperature and pressure has been developed for small‐ and large‐scale preparations of the carbon isotope isomers of acetic acid.
Syntheses with stable isotopes: Urea-13C, urea-12C, and urea-13C-15N2
✍ Scribed by Thomas W. Whaley; Donald G. Ott
- Publisher
- John Wiley and Sons
- Year
- 1975
- Tongue
- French
- Weight
- 178 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
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~.
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