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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2305110Generated: November 3, 2026

Boric Acid → 5-phenyl-3-(1-tosyl-2-(S)-pyrrolidinylmethoxy)pyridine

https://huagongshe.com/reaction/2305110

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBoric AcidHCID 7628—
ReactantSodium BicarbonateHCID 516892—
Reactant5-bromo-3-(1-tosyl-2-(S)-pyrrolidinylmethoxy)pyridineHCID 54158590—
SolventBenzeneHCID 241—
Product5-phenyl-3-(1-tosyl-2-(S)-pyrrolidinylmethoxy)pyridineHCID 5390873513.7%

Reaction Steps

5-bromo-3-(1-tosyl-2-(S)-pyrrolidinylmethoxy)pyridine from step 51b (300 mg, 10.73 mmol), boric acid (107 mg, 10.88 mmol) and Pd(0) (26 mg) were mixed together in benzene (2 mrL), and the mixture was heated at reflux for 16 hours. NaHCO3 solution (2%, lmL) was added, and the mixture was extracted with CHCl3. The CHCl3 was removed under reduced pressure, and the residue was chromatographed on a silica gel column, eluting with EtOAc/hexane 1:1 to afford the title compound (300 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06437138B1
Source datasetuspto-grants-2002_08
ORD IDord-97c8cf5ee7474ffb856a24a5762b7524
Source noteuspto-grants-2002_08