醚化

O-Benzylhydroxylamine hydrochloride was conveniently prepared by O-benzylation of N-hydroxybenzamide,acidic hydrolysis and salifying with HCl(g).The overall yield was over 76%.

氧芐基酸可通过苯甲肟酸的氧苄醚、酸水解及氯氢成制得,总收率76%。

Xanthone was efficiently synthesized from o-chlorobenzoic acid first by etherization and then by Friedel-Crafts reaction in the presence of aluminium trichloride.

以邻氯苯甲酸为原料,先进行醚,再在三氯铝的作用下进行傅-克反应,可洁、高效的合成呫吨酮。

Polynionic celluloses were preparated by alkalify and etherify of refining cotton.The degree of replacement of the polynionic cellulosesis was high.The radicals of replacement were distributed evenly.

采用精制棉经过碱、醚得到高取代度且取代基均匀分布的聚阴离子纤维素产品。

This paper introduces the light gaso line etherify technology,brings fo rward the project of building the light gasoline etherify device on th e catalyst cracking cell in the refin ery plant.

介绍了轻汽油醚技术,提出了在炼油裂单元建设轻汽油醚装置的方案。