1-(4-Methoxyphenyl)but-3-yn-1-one 在
chromatographic column on silica gel 作用下,
以
乙醚 、 Petroleum ether 为溶剂,
以768.1 mg的产率得到1-(4-methoxyphenyl)buta-2,3-dien-1-one
参考文献:
名称:
室温Fe(NO 3)3 ·9H 2 O / TEMPO / NaCl催化的均丙醇的好氧氧化
摘要:
使用的Fe homopropargylic醇的实际和生态友好的有氧氧化(NO 3)3 ·9H 2 O / TEMPO / NaCl的如在大气压下室温催化剂的开发得到对应homopropargylic酮与中度至良好的产率。芳基,杂芳基以及烷基1,2-丙二烯酮类通过柱层析后处理在硅胶上相应的端子homopropargylic酮的异构化获得的。
Au nanoparticlessupported on TiO2 (1 mol %) catalyze the quantitative cycloisomerization of conjugated allenones into furans under very mild conditions. The reaction rate is accelerated by adding acetic acid (1 equiv), but the acid does not participate in the protodeauration step as in the corresponding Au(III)-catalyzed transformation. The process is purely heterogeneous, allowing thus the recycling
Tandem reaction of 3-hydroxyhexa-4,5-allenic esters: a novel access to diversely substituted 2H-pyran-2-ones and indenes
作者:Haiyun Xu、Xinying Zhang、Yan He、Shenghai Guo、Xuesen Fan
DOI:10.1039/c2cc30247k
日期:——
A highly efficient synthesis of diversely substituted 2H-pyran-2-ones and indenes through Brønsted acid promoted tandem reaction of the readily obtainable 3-hydroxyhexa-4,5-allenic esters under extremely mild conditions has been developed.