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Preparing chiral alpha-hydroxy-beta-keto ester compound using chiral beta-alkoxy-beta'-amino alcohol as a catalyst, comprises reacting beta-keto ester compound and an oxidant in the presence of the catalyst in an inert solvent. 专利
申请日期: 2010-01-01, 公开日期: 2010-09-29
作者:  MENG Q GONG B DU J SU T
收藏  |  浏览/下载:10/0  |  提交时间:2019/12/24
Preparing modified silica gel absorbent used for protecting vehicle-mounted fuel cell, by mixing tetraethoxysilane, ethyl alcohol, deionized water and hydrochloric acid, adding amino modifying agent, and drying and pulverizing product. 专利
申请日期: 2010-01-01, 公开日期: 2010-10-13
作者:  QIU J WAN P
收藏  |  浏览/下载:6/0  |  提交时间:2019/12/24


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