49571-45-1Relevant articles and documents
Rhodium(III)-Catalyzed Aldehyde C?H Activation and Functionalization with Dioxazolones: An Entry to Imide Synthesis
Bellière-Baca, Virginie,Clavier, Hervé,Hérault, Damien,Massouh, Joe,Petrelli, Antoine
supporting information, (2022/01/06)
A rhodium(III)-based catalytic system has been used to develop a C?H bond activation of benzaldehyde derivatives and subsequent functionalization with dioxazolones in order to afford imides. The importance of the nature of the directing group to perform selectively the aldehydic C?H bond activation has been highlighted. The scope investigation showed that this transformation could be applied to various dioxazolones and many benzaldehyde derivatives as well as an acrolein derivative. Derivatization reactions of the imide products demonstrated the synthetic utility of this rhodium-catalyzed aldehydic C?H amidation.
Construction of highly functionalized thiophene and benzo[b]thiophene derivatives via a sequence of propargyl–allenyl isomerization/cyclization/demethylation
Chen, Dianpeng,Xing, Gangdong,Chen, Xueyuan,Yao, Jinzhong,Zhou, Hongwei
supporting information, p. 5124 - 5126 (2016/11/09)
An efficient one-pot protocol for the synthesis of functionalized thiophene and benzo[b]thiophene derivatives was developed via a sequence of propargyl–allenyl isomerization/cyclization/demethylation. As a result of the readily accessible starting materials, simple operation, and mild conditions, this reaction should have potential utility in organic synthesis.
Rhodium-catalysed linear-selective alkyne hydroacylation
Poingdestre, Sarah-Jane,Goodacre, Jonathan D.,Weller, Andrew S.,Willis, Michael C.
supporting information; scheme or table, p. 6354 - 6356 (2012/07/14)
The use of the electron-rich diphosphine ligand, dcpe, allows the efficient and highly linear selective hydroacylative coupling of aldehydes, including aryl examples, with a range of alkynes.
