An organic oxidation catalyst for alcohols which is environmentally less harmful and with which efficient oxidation can be conducted. The oxidation catalyst for alcohols is a 1-alkyl-2-azadamantan-N-oxyl which has a nitroxyl group incorporated in the adamantane skeleton and was synthesized from as a base material a bicyclic compound obtained by the Grob-type ring-opening reaction of 1,3-adamantanediol. Due to the nitroxyl group on the adamantane skeleton, the α-position hydrogen is stabilized based on Bredt's rule and the stability of the oxoammonium group generated by the oxidation thereof is ensured. Compared to TEMPO, which is a conventional oxidation catalyst, this catalyst is reduced in steric hindrance and is usable in a wide range of reaction fields. Because of this, not only a primary alcohol but a secondary alcohol having a sterically complicated structure, which has been difficult to oxidize with TEMPO, can be oxidized at a high efficiency.
这是一种对
醇类进行高效氧化且环境友好的有机氧化催化剂。该
醇类氧化催化剂是一种含有
亚胺氧基的1-烷基-
2-氮杂双环[10.2.1]
戊烷-N-氧化物,其
亚胺氧基嵌入了双
环戊烷骨架中,并以
1,3-戊二醇的Grob型开环反应产物为基础材料合成而成。由于双
环戊烷骨架上的
亚胺氧基,根据Bredt规则,α-位置的氢被稳定,确保氧化后生成的氧羟
铵基团的稳定性。与传统氧化催化剂
TEMPO相比,这种催化剂的立体位阻更小,可用于广泛的反应领域。因此,不仅可以高效地氧化一级醇,还可以氧化二级醇,即使其具有立体构型复杂的结构,在
TEMPO中也难以氧化。