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浅谈黄磷精制方法的改进
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作者 骆祖林 李荣川 《云南化工》 CAS 2002年第5期14-15,共2页
通过瓮安磷矿 3 0 0 0t/a黄磷生产实践的总结 ,提出黄磷精制操作方法的改进意见 ,对小型黄磷生产厂具有一定的借鉴作用。
关键词 精制方法 改进 煮磷 漂洗 沉淀
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One-pot synthesis of 1,3,4-oxadiazole-5-thioethers in water
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作者 闫旭 葛泽梅 +1 位作者 程铁明 李润涛 《Journal of Chinese Pharmaceutical Sciences》 CAS 2008年第4期277-280,共4页
An efficient and environmental-friendly one-pot procedure has been developed for the synthesis of 1,3,4-oxadiazole-5- thioethers by the reaction of acylhydrazine with carbon disulfide and organic halides or α, β-uns... An efficient and environmental-friendly one-pot procedure has been developed for the synthesis of 1,3,4-oxadiazole-5- thioethers by the reaction of acylhydrazine with carbon disulfide and organic halides or α, β-unsaturated carbonyl compounds. The reactions were carried out in water in the presence of potassium phosphate within 2-4 h to afford the expected products in excellent yields. 展开更多
关键词 1 3 4-Oxadiazole-5-thioether One-pot synthesis Environmental-friendly Aqueous medium Acylhydrazine Potassium phosphate
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