作者:Sosale Chandrasekhar、Kovuru Gopalaiah
DOI:10.1016/s0040-4039(01)01737-3
日期:2001.11
Several ketoxime hydrochlorides undergo Beckmann rearrangement upon heating below their melting points for 5–48 h, in excellent yields (generally >70%). The absence of a reaction solvent and of by-products (except for HCl) makes for a very simple work-up. Aldoxime hydrochlorides apparently undergo dehydration to the corresponding nitriles under the above conditions. Dibenzyl ketoxime hydrochloride
几种酮肟盐酸盐在低于其熔点的温度加热5–48小时后会发生贝克曼重排,收率极高(通常> 70%)。由于没有反应溶剂和副产物(HCl除外),因此后处理非常简单。在上述条件下,盐酸阿尔多肟显然会脱水成相应的腈。盐酸二苄基酮肟意外地提供了吡嗪衍生物(67%),大概是通过中间体腈离子在晶格中的进一步反应而得到的。