3-Chloro-2,5-diethylpyrazine → 3-Chloro-2,5-dicyclopropylpyrazine
Reaction equation
[Cl:1]C1C(CC)=NC=C(CC)N=1.[CH:12]1([CH:15]2[NH:20][C:19](=O)[CH:18]([CH:22]3[CH2:24][CH2:23]3)[NH:17][C:16]2=O)[CH2:14][CH2:13]1>>[Cl:1][C:19]1[C:18]([CH:22]2[CH2:24][CH2:23]2)=[N:17][CH:16]=[C:15]([CH:12]2[CH2:14][CH2:13]2)[N:20]=1Participants
3
Procedure
Following the procedure for the preparation of 3-chloro-2,5-diethylpyrazine but substituting 3,6-dicyclopropylpiperazine-2,5-dione and making non-critical variations provided the title compound as an oil: 1H NMR (CDCl3) δ 0.99-1.13, 1.94-2.03, 2.38-2.47; MS (ESI+) for C10H11N2 m/z 195 (M+H)+.
Sources & evidence
- ORD record
- ord-a8af7d033190472bbe788108f79a2749
- Source dataset
- uspto-grants-2006_01
- Patent number
- US06992087B2
Reaction notes
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