## Abstract ^13^C labelled (1,2 and 1,12) and perdeuterated derivatives of 2βphenyl cyclododecanones, as precursors for labelled triplet flexible biradicals to probe magnetic isotope effects at the radical centers on the triplet decay dynamics, were synthesized. Isotopomers of 2βphenylcyclododecano
Synthesis of 13C- and 2H-labelled PQQ
β Scribed by Jaap A. Jongejan; Roland P. Bezemer; Johannis A. Duine
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- French
- Weight
- 229 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
The incorporation of carbon-13 and deuterium i n the t,2,3-thiadiaxoZe framework i s described.
## Abstract Efficient methods for synthesising Lβ[methyβ ^13^C]methionine from [^13^C]iodomethane and Lβmethionine, and Lβ[3,4β^13^C~2~] methionine from [^13^C~2~]ethene, are described; the preparation of [3,3β^2^H~2~]methionine and [2,3,3β^2^H~3~]methionine from methionine by an exchange method is
2 -~h l o r o -[ l -~~C ] p r o p i o n y l chloride, phenyl-2-chloro-[l-13Clpropionate, 2-chloro-[ 1-13C] propan-1-01. 1-methyl-[ 2-I3C I ethylene oxide. SUMMARY 13 l-Methyl-[2-Clethylene oxide (I) is prepared in a four-step synthesis, I J starting from [l-Clpropionic acid. A method for an efficien