Regioselective Synthesis of Pyrroles from Alkyne-Isocyanide Click Reactions: An Angle Strain-Induced Bond Migration Approach
作者:Jimil George、Hun Young Kim、Kyungsoo Oh
DOI:10.1002/adsc.201601017
日期:2016.12.7
direct regioselective synthesis of highly functionalized pyrroles with two different electron‐withdrawing groups has been developed using an angle strain‐induced 1,2‐shift of an electron‐withdrawing group in 2H‐pyrroles. The preferential migration aptitude of an electron‐withdrawing group over alkyl and aryl groups is believed to be the result of the orbital overlap between the internal alkene and the
Gold(I)‐Catalyzed Ring‐Closing Alkyne‐Carbonyl Metathesis for the Synthesis of Butenolides
作者:Zhenjie Su、Pathan Mosim Amin、Shaozhong Wang
DOI:10.1002/chem.202302044
日期:2023.11.21
A gold(I)-catalyzed ring-closing alkyne-carbonyl metathesis has been developed to construct γ-butenolides and related naturally occurring compounds, featuring the concurrent formation of a carbon-carbon double bond and a ketone group in 100 % atom economy.
The present application relates to encapsulated benefit agents, compositions comprising such encapsulated benefit agents and processes for making and using compositions comprising such encapsulated benefit agents. Such encapsulated benefit agents eliminate or minimize one or more of the drawbacks of current encapsulated benefit agents and thus provide formulators with additional perfume delivery opportunities.