Ni-Catalyzed Intramolecular Cycloaddition of Methylenecyclopropanes to Alkynes
摘要:
Ni-catalyzed intramolecular cycloaddition of methylenecyclopropanes (MCPs) to arkylalkynes via proximal bond cleavage is reported. The reaction provides a facile route for the preparation of cyclopenta[a]indene derivatives.
Ni-Catalyzed Intramolecular Cycloaddition of Methylenecyclopropanes to Alkynes
摘要:
Ni-catalyzed intramolecular cycloaddition of methylenecyclopropanes (MCPs) to arkylalkynes via proximal bond cleavage is reported. The reaction provides a facile route for the preparation of cyclopenta[a]indene derivatives.
Copper-catalyzed cascade cyclization of 1,5-enynes via consecutive trifluoromethylazidation/diazidation and click reaction: self-assembly of triazole fused isoindolines
作者:Liu-Zhu Yu、Yin Wei、Min Shi
DOI:10.1039/c6cc07394h
日期:——
Copper-catalyzedcascade cyclization of 1,5-enynes with two types of hypervalent reagents was developed via consecutive trifluoromethylazidation/diazidation and intramolecular click reaction (CUAAC), providing one-pot self-assembly of triazole fused isoindolines bearing a...
Synthesis of Polysubstituted Polycyclic Aromatic Hydrocarbons by Gold-Catalyzed Cyclization–Oxidation of Alkylidenecyclopropane-Containing 1,5-Enynes
作者:Liu-Zhu Yu、Yin Wei、Min Shi
DOI:10.1021/acscatal.7b00784
日期:2017.7.7
ne-containing 1,5-enynes with 3,5-dibromo-pyridine N-oxide via a noncarbene model was developed, providing a range of synthetically valuable and useful arylacetaldehyde derivatives in moderate to good yields without oxidation of alkynes. Moreover, the corresponding aldehydes can be further transformed into polycyclicaromatichydrocarbons in the presence of a catalytic amount of Lewis acid In(OTf)3