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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1253946Generated: November 3, 2026

Sodium Carbonate → HCID 66797782, compound

https://huagongshe.com/reaction/1253946

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
Reactant3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2(3H)-benzoxazoloneHCID 59535069—
ReactantHCID 59636235HCID 59636235—
CatalystHCID 178418476HCID 178418476—
SolventDimethylformamideHCID 6228—
ProductHCID 66797782HCID 667977820.5%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 3-Methyl-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-3H-benzooxazol-2-one (304 mg, 1.1 mmol), 2-(3-Bromo-pyridin-4-yl)-propan-2-ol (217 mg, 1.0 mmol), Na2CO3 (2 M in water, 1.5 mL, 3.0 mmol) and PdCl2(PPh3)2 (56 mg, 0.08 mmol) in DMF (6 mL) was heated at 100° C. for 4 hrs. After concentration, the residue was diluted with DCM and saturated NH4Cl solution. After filtration and concentration, the residue was purified by flash column (MeOH—CH2Cl2, v/v, 0-3.5%) to give the title compound (1.4 mg, 0.5%); ESI-MS m/z: 285 [M+1]+, Retention time 0.98 min; 1H-NMR (CDCl3, 400 MHz) δ 1.51 (s, 6H), 3.43 (s, 3H), 6.95 (d, J=1.6 Hz, 1H), 7.04 (dd, J=8.4, 1.6 Hz, 1H), 7.32 (d, J=8.4 Hz, 1H), 8.11 (d, J=6.0 Hz, 1H), 8.40 (s, 1H), 8.65 (d. J=6.0 Hz, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08455522B2
Source datasetuspto-grants-2013_06
ORD IDord-1d77c678d87e4b5cb6a59ecae591e29e
Source noteuspto-grants-2013_06