From Halogenopyrazine A-Oxides

The preparations of nuclear and extranuclear alkoxypyrazine A-oxides from chloropyrazine A-oxides and extranuclear chloropyrazine A-oxides have been described in Section V.7A(3) (588, 756, 838, 842, 872,978) and Section V.7B(3) (529), respectively. 

3-Chloropyrazine 1 -oxide hydrolyzed with aqueous sodium hydroxide and the product treated with triethylamine and trimethylsilyl chloride gave 3-(trimethyl-silyl)oxypyrazine 1-oxide (1034). 

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