5 years ago

Regioselective Synthesis of Heteroatom-Functionalized Cyclobutene-triflones and Cyclobutenones

Regioselective Synthesis of Heteroatom-Functionalized Cyclobutene-triflones and Cyclobutenones
Pedro Almendros, Carlos Lázaro-Milla, Benito Alcaide
The controlled metal-free synthesis of a vast variety of heteroatom-containing cyclobutene-triflones [bis(trifluoromethylsulfonyl)cyclobutenes] and cyclobutenones has been developed starting from heteroatom-substituted alkynes and a pyridinium salt (a latent Tf2C=CH2 source). This powerful methodology, involving cyclization reactions, allows for the selective preparation of oxygen-, nitrogen-, bromine-, chlorine-, iodine-, sulfur-, selenium-, tellurium-, phosphorus-, and silicon-functionalized cyclobutene derivatives.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/adsc.201700492

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