共查询到5条相似文献,搜索用时 2 毫秒
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以香叶基丙酮为起始原料,经五步反应以32%的总收率首次合成了3,7,11,15-四甲基-14-氧代-15-叔丁基二甲基硅氧基-2E,6E,10E-十六碳三烯酸乙酯,它是2-Hydroxyenehpthenol全合成中的酮酯关环前体。 相似文献
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AiYouHAO JinShanWANG 《中国化学快报》2002,13(9):832-835
2-O-Acetonyl-β-cyclodextrin with a suitable average substitution degree of about 5.8, which could be used as a key intermediate for water soluble functional β-cyclodextrin derivatives, was prepared based on the proper oxidation of heptakis(6-O-dimethyl-tert-butylsilyl)-2-O-hydroxypropyl-β-cyclodextrin. 相似文献
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Yu Xia DIAO Yang TIAN Si Hui ZHAN Wen Xing ZHANG* Xiu Ling JIAO Dai Rong CHEN School of Chemistry Chemical Engineering Shandong University Jinan 《中国化学快报》2003,14(7):740-743
Recently, the thermal decomposition of heteronuclear complexes has become apromising method for the preparation of di- or tri-metallic oxides because the complex as precursor has the special microstructure, the controlled stoichiometry of the metals and lower decomposition temperature 1. In order to investigate Ba-V-O system, which has the special magnetic behavior 2, we synthesized the title complex as the precursor of this material. On the other hand, microporous constructions existing in… 相似文献
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Shu Tao MA Hong Xiang LOU 《中国化学快报》2006,17(6):714-716
Novel ethyl 7-chloro-6-fluoro-l-methyl-4-oxo-1, 4-dihydro-[1, 3]thiazeto[3, 2-a]quino- line-3-carboxylate 2 was prepared from 3-chloro-4-fluoroaniline in eight steps. It can be used as a new intermediate for the synthesis of tricyclic fluoroquinolones. 相似文献