Hydrogenolysis of aryl tosylates with
hydrazine in presence of palladium catalyst involves a preliminary
decomposition of hydrazine to give inter alia hydrogen, which then accomplishes
the hydrogenolysis. The reaction can be carried out with molecular hydrogen in
the presence of the same catalyst but not under reaction conditions involving
the intervention of di-imide as the reactive species. Mono-nuclear aryl
tosylates cannot be successfully hydrogenolysed with hydrazine over palladium.
A novel method was established of generating di-imide from hydrazine and iodine
in presence of base or excess hydrazine.
在
钯催化剂存在下,芳基
对甲苯磺酸盐与
在
钯催化剂存在下,
肼与芳基
对甲苯磺酸盐的氢解反应包括
肼的初步分解
肼分解产生氢等物质,然后完成氢解。
完成氢解反应。该反应可在分子氢与
分子氢进行反应,但反应条件不包括
反应条件下进行。单核芳基
单核芳基
对甲苯磺酸盐不能在
钯上用
肼成功地进行氢解。
在碱或过量
肼的存在下,建立了一种从
肼和
碘生成二
亚胺的新方法
生成二
亚胺的新方法。