反应详情

The treated catalyst (I) (containing 0.3 g of metallic nickel) and 4.0 g of a 80% aqueous hydrazine hydrate solution were added dropwise to 240 g of an aqueous solution containing 19.7 g of 6-chloro-2-quinoxalinol-4-oxide and 28 g of potassium hydroxide at 40° to 50° C., and the reaction was carried out at 40° to 80° C. for 5 hr. After the catalyst was removed, the filtrate was acidified to give 17.3 g (yield 96%) of 6-chloro-2-quinoxalinol.

1. customAfter the catalyst was removed