## Abstract An efficient small scale synthesis of ^14^C labeled 1‐vinyl‐2‐pyrrolidinone (NVP) is described. The cyclization of commercially available [1,2,3,4‐^14^C]‐γ‐aminobutyric acid (GABA) gives [2,3,4,5‐^14^C]‐2‐pyrrolidinone which is vinylized with vinyl acetate via a sodium tetrachloropallad
Synthesis of malondialdehyde-1,2,3-14C3 via ethyl vinyl-[1,2-14C2] ether
✍ Scribed by Michael J. Bienkowski; Melissa A. Tuttle; Lawrence J. Marnett
- Publisher
- John Wiley and Sons
- Year
- 1980
- Tongue
- French
- Weight
- 234 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
The synthesis of 1,1,3,3‐tetraethoxypropane‐1,2,3‐^14^C~3~ from uniformly labeled paraldehyde is described. The synthesis involves three steps and proceeds in an overall yield of 25%. The final product is greater than 95% radiochemically pure and it is stable indefinitely when stored as thoroughly degassed benzene solutions. Hydrolysis of radiolabeled tetraethoxypropane occurs in moderate yields to form malondialdehyde‐1,2,3‐^14^C~3~(1,3 propanedial‐1,2,3‐^14^C~3~) which is isolated and stored as the sodium salt. One of the intermediates in the synthesis of tetraethoxypropane is ethyl vinyl‐[1,2‐^14^C~2~] ether, which is isolable in 50% overall yield from paraldehyde. The widespread utilization of ethyl vinyl ether in organic synthesis suggests that the radiolabeled material should provide an entry to a large number of specifically [^14^C] labeled compounds.
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