Design of (β-diazo-α,α-difluoroethyl)phosphonates and their application as masked carbenes in visible light-promoted coupling reactions with sulfonic acids
Literature Information
Publication Date
2021-01-04
DOI
10.1039/D0QO01394C
Impact Factor
5.281
Authors
Haibo Mei, Jiang Liu, Romana Pajkert, Li Wang, Gerd-Volker Röschenthaler, Jianlin Han
View Original
Abstract
We elaborate a method for the generation of (2-diazo-1,1-difluoroethyl)phosphonates from (β-amino-α,α-difluoroethyl)phosphonates as precursors and their application as masked carbenes in coupling reactions with sulfonic acids under photochemical conditions. Varieties of coupling partners including aminophosphonates and sulfonic acids are well tolerated in this reaction affording unknown sulfonate esters in good yields. The strategy of this new diazo compound provides a valuable vista for the construction of functionalized difluoromethylene phosphonates and transformations of fluoro diazo compounds.
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