Two new α,β-unsaturated butyrolactone derivatives from Pleione bulbocodioides

来源 :中国化学快报(英文版) | 被引量 : 0次 | 上传用户:bright545454
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Two new α,β-unsaturated butyrolactone derivatives, 4-(4″-hydroxybenzyl)-3-(3′-hydroxy-phenethyl)furan-2(5H)-one (1) and 3-(3′-hydroxyphenethyl)furan-2(5H)-one (2), together with one known phenolic compound (3), were isolated from the tubers of Pleione bulbocodioides (Franch.) Rolfe. Their structures were elucidated by analysis of spectroscopic data.
其他文献
The degradation of formaldehyde gas was studied using UV/TiO2/O3 process under the condition of continuous flow mode.The effects of humidity,initial formaldehyd
The novel CuO-SnO2 nanocomposite oxide photocatalysts were prepared by simple co-precipitation method,and characterized by X-ray diffraction,transmission electr
目的 了解2009-2011年浙江省的HIV耐药株传播水平.方法 采用WHO的截断序贯抽样法,分别于2009、2010、2011年在浙江省AIDS疫情主要发生地区(杭州、宁波和温州)采集63例、62例
Acidithiobacillus ferrooxidans ATCC23270 and Acidithiobacillus thiooxidans TM-32 were used for bioleaching of spent refractories of aluminium and copper melting
A study was carried out at the Loess Plateau in Dongzhi,China,to test the feasibility of using secondary treatment sewage effluent and to determine whether the
本试验旨在研究不同营养水平全饲粮颗粒料对绵羊瘤胃液挥发性脂肪酸(VFA)浓度和比例的影响.选用3.5~4月龄,体重15 kg左右的陶赛特(♂)×藏羊(♀)杂交一代公羔15只,采用单因子
Methyl tert-butyl ether (MTBE),a gasoline additive,possesses serious problems to the environmental health.In the present study,a bacterial culture named A-3 whi
The turuovor of phosphorus (P) in lake sediments,a major cause of eutrophication and subsequent deterioration of water quality,is in need of deep understanding.
The simultaneous nitrification and denitrification in step-feeding biological nitrogen removal process were investigated under different influent substrate conc
Keratinous wastes could be degraded by some microorganisms in nature.Native human foot skin (NHFS) was used as sole nitrogen source to screen microorganisms wit