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24th November 2014 @ 06:44
AEW 207-1  (from Synthesis of 2-Chloro-6-hydrazinylpyrazine (AEW 85-4)): 381 mg, 3.46 mmol) was dissolved in toluene (5 mL), triethyl orthoformate (0.737 ml, 6.92 mmol, 2 eq) and TsOH (60 mg, 0.35 mmol, 10 mol%) added, and the reaction mixture refluxed (bath temp 110 oC) for 24 h.  Hazard and Risk Assessment: See Synthesis of 5-chloro-[1,2,4]triazolo[4,3-a]pyrazine (TM 37-1)   Strings: InChI=1S/C4H6N4/c5-8-4-3-6-1-2-7-4/h1-3H,5H2,(H,7,8) to InChI=1S/C5H4N4/c1-2-9-4-7-8-5(9)3-6-1/h1-4H   NNC1=NC=CN=C1 to C12=NN=CN1C=CN=C2
Attached Files
AEW 209-1.cdxml
AEW 209-1.png