Silylium‐Catalyzed Alkynylation and Etherification Reactions of Benzylic Acetates
作者:Belén Rubial、Alfredo Ballesteros、José M. González
DOI:10.1002/ejoc.202200051
日期:2022.7.14
Bistriflimide-catalyzed coupling reactions of benzylacetates with both trimethyl(alkynyl)silanes and trimethyl(alkoxy)silanes lead to propargyl arenes and benzyl alkyl ethers, respectively. The acid assists the release of the reactive trimethylsilylium ion into the media, which is the ultimate catalytic species. The cationic nature of the processes is documented.
Foubelo Francisco, Lloret Francisco, Yus Miguel, Tetrahedron, 50 (1994) N 17, S 5131-5138
作者:Foubelo Francisco, Lloret Francisco, Yus Miguel
DOI:——
日期:——
β-Functionalised radicals in organic synthesis: 2-acyloxyalkyl radicals from 2-acyloxyalkyl iodides by the tin route
作者:Francisco Foubelo、Francisco Lloret、Miguel Yus
DOI:10.1016/s0040-4020(01)90423-5
日期:1994.4
The reaction of iodoesters 1a-c with electrophilic olefins 2a-d and in situ generated tributyltin hydride (from a substoichiometric amount of tributyltin chloride and an excess of sodium borohydride) in the presence of a catalytic amount of AIBN in ethanol at 0 to 20°C yields the expected coupling products 3aa-3cd. Products 4 resulting from an iodine/hydrogen exchange are also obtained as by-products