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CAS No. : | 952737-54-1 | MDL No. : | MFCD18250058 |
Formula : | C9H9BO4 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | MPLLPTYEVKJTJR-UHFFFAOYSA-N |
M.W : | 191.98 | Pubchem ID : | 50878582 |
Synonyms : |
|
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
55% | With tetrakis(triphenylphosphine) palladium(0); potassium carbonate; In methanol; toluene;Inert atmosphere; Reflux; | General procedure: <strong>[1458-01-1]Methyl 3,5-diamino-6-chloropyrazine-2-carboxylate</strong> 2 (1 eq.) was combined with K2CO3 (10 eq.), the appropriate (het)aryl boronic acid (1.5 eq.) and Pd(PPh3)4 (5 mol%) in a two-neck round bottom flask. The flask was connected to a condenser and purged with nitrogen. A 4:1 mixture of anhydrous toluene: MeOH (60 mL) was added via syringe and the reaction mixture was heated at reflux for 0.5-18 h. The mixture was allowed to cool to room temperature and filtered through Celite (10 x 3 cm, eluting with 3 x 20 mL EtOAc). The filtrate was evaporated to dryness and the residue purified by silica gel flash column chromatography using EtOAc/pet spirit. |
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