申请人:Daicel Chemical Industries, Ltd.
公开号:US06468487B1
公开(公告)日:2002-10-22
In the presence of an imide compound (e.g., N-hydroxyphthalimide) shown by the following formula (1):
wherein R1 and R2 represent a hydrogen atom, a halogen atom, an alkyl group, an aryl group and a cycloalkyl group, and R1 and R2 may bond together to form a double bond, or an aromatic or non-aromatic ring, and Y is an O or OH, and n denotes 1 to 3;
a substrate is allowed to contact with at least one reactant selected from (i) a nitrogen oxide and (ii) a mixture of carbon monoxide and oxygen to be introduced with at least one functional group selected from a nitro group and a carboxyl group. The nitrogen oxide includes, for example, a compound represented by the formula NxOy (e.g., N2O3, NO2). The substrate includes, for example, a compound having a methine carbon atom (e.g., adamantane), a compound having a methyl group or a methylene group at an adjacent moiety of an aromatic ring. According to such reaction, the substrate can be efficiently nitrated or carboxylated even in a mild or moderate condition.
在存在亚酰胺化合物(例如N-羟基邻苯二甲酰亚胺)的情况下,如下式(1)所示:
其中,R1和R2代表氢原子、卤素原子、烷基、芳基和环烷基,R1和R2可以结合形成双键或芳香或非芳香环,Y为O或OH,n表示1至3;将底物与至少选自(i)氮氧化物和(ii)一混合物(一氧化碳和氧气)的至少一种反应物接触,以引入至少一种选自硝基和羧基的官能团。氮氧化物包括例如由公式NxOy表示的化合物(例如N2O3,NO2)。底物包括例如具有甲烷碳原子(例如金刚烷)、在芳香环相邻基团上具有甲基基团或亚甲基基团的化合物。根据这种反应,即使在温和或中等条件下,底物也可以高效地硝化或羧化。