A convenient synthesis of 13C-bromoform and 13C-tetrabromomethane from 13C-iodomethane labelling through 13:CBr2
✍ Scribed by Herbert Siegel; Dieter Seebach
- Publisher
- John Wiley and Sons
- Year
- 1980
- Tongue
- French
- Weight
- 299 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Phenyldithiane 3 is methylated with ^13^CH~3~I to give, through the thioacetal 4, labelled acetophenone (5). NaOBr‐cleavage to the title compounds 1 and 2 (65 % and 76 %, respectively) and their use in the preparation of the dibromocyclopropane 6 and the dibromoolefin 7 are described.
📜 SIMILAR VOLUMES
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
## Abstract 2′,3′‐Dideoxyinosine‐^13^C~5~ (ddI‐^13^C~5~) and the related 2′,3′‐dideoxyadenosine‐^13^C~5~ (ddA‐^13^C~5~) were prepared from (S)‐5‐[^13^C~5~]2,3‐dideoxyribonolactone 1. From a batch of this starting material ddI‐^13^C~5~ was made in 27% overall yield in seven steps and ddA‐^13^C~5~ in
## Abstract The synthesis of benzo[a]pyrene‐6‐^13^C is described. Perinaphthane was converted to 6‐benzoyl‐carbonyl‐^13^C‐perinaphthane which was cyclized to 2,3‐dihydrobenzo[a]pyren‐6(1H)‐one‐6‐^13^C. Subsequent reduction of the ketone followed by dehydration and dehydrogenation gave benzo[a]pyren
## Abstract The synthesis of [1,3,5‐^13^C~3~]‐ and [2,4,6,7‐^13^C~4~]benzoic acid (5a and 5b) from [2‐^13^C]‐ and [3‐^13^C]sodium pyruvate (1a and 1b), for __in vitro__ and __in vivo__ tracer studies using ^13^C nuclear magnetic resonance (NMR) spectroscopy, is reported. After condensation of 1 to