Fig. 2: Synthesis of oligosulfonimidates. | Nature Synthesis

Fig. 2: Synthesis of oligosulfonimidates.

From: Synthesis of chiral sequence-defined oligomers via sulfur–fluoride and sulfur–phenolate exchange reactions

Fig. 2

a, General synthesis of oligosulfonimidates: (i) Coupling of oligomers with di-sulfonimidoyl fluorides using DBU as a base (in molar ratio 1:5:1.5) at room temperature (r.t.); (ii) Coupling of oligomers with bisphenols using DBU as a base (in molar ratio 1:5:5) in THF at r.t. b, Synthesized oligosulfonimidate A7 consisting of 1a and 2a units. c, Synthesized oligosulfonimidate B7 with constant di-SF and three different di-phenols. d, Synthesized oligosulfonimidate C7 with three different di-phenols and di-SFs. DBU, 1,8-diazabicyclo[5.4.0]undec-7-ene; THF, tetrahydrofuran; tol, p-tolyl.

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