Conia-ene annulation of the α-cyano β-TMS-capped alkynyl cycloalkanone system and its synthetic application
作者:Chih-Lung Chin、Cheng-Feng Liao、Hsing-Jang Liu、Ying-Chieh Wong、Ming-Tsang Hsieh、Prashanth K. Amancha、Chun-Ping Chang、Kak-Shan Shia
DOI:10.1039/c1ob05591g
日期:——
Under catalysis with ZnI2, an effective annulation process of Ï-silylacetylenic α-cyano ketones, leading to the formation of various bicyclic frameworks characterized with a TMS-containing methylenecyclopentane ring, has been developed.
Palladium(ii) acetate mediated oxidative cyclization of ω-unsaturated α-cyano ketones for facile construction of methylenecyclohexane ring system
作者:Min-Tsang Hsieh、Kak-Shan Shia、Hsing-Jang Liu、Sheng-Chu Kuo
DOI:10.1039/c2ob25161b
日期:——
construction of the structurally attractive methylenecyclohexane ring was developed through a convenient 1,4-addition of 4-pentenylmagnesium bromide to 2-cyano-2-cycloalkenones followed by a Pd(II)-mediated oxidative cyclization of the resulting ω-unsaturated α-cyano ketones. Based on this newly developed protocol, polycyclic adducts bearing various ring sizes and substitutions can be prepared in moderate to
The present invention features monocyclic cyanoenone compositions and methods for using the same in the treatment of diseases such as cancer, inflammatory diseases and neurodegenerative diseases.
本发明涉及单环氰基烯酮组合物及其在治疗癌症、炎症性疾病和神经退行性疾病等疾病中的应用方法。
Autoxidative Annulation Cascade of the α-Cyano β-TMS-capped Alkynyl Cycloalkanone System
作者:Ying-Chieh Wong、Min-Tsang Hsieh、Prashanth K. Amancha、Chih-Lung Chin、Cheng-Feng Liao、Chun-Wei Kuo、Kak-Shan Shia
DOI:10.1021/ol102947u
日期:2011.3.4
The autoxidative annulation cascade promoted by an a.-cyano beta-TMS-capped alkynyl cycloalkanone system under catalysis with pyridine in one oxygen atmosphere has proven to be highly viable. On the basis of this newly developed protocol, a variety of highly functionalized bicyclic frameworks can be effectively constructed.