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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1644632Generated: October 31, 2026

1,4-Dioxane → 4-[(2,4-Dimethoxy-benzyl)-methyl-amino]-2-fluoro-N-thiazol-2-yl-benzenesulfonamide

https://huagongshe.com/reaction/1644632

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,4-DioxaneHCID 31275—
Reactant1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 636044—
Reactant[(2,4-Dimethoxyphenyl)methyl](methyl)amineHCID 2416536—
ReactantSodium t-butoxideHCID 23676156—
Reactant4-Bromo-2-fluoro-N-thiazol-2-yl-benzenesulfonamideHCID 25138353—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
Product4-[(2,4-Dimethoxy-benzyl)-methyl-amino]-2-fluoro-N-thiazol-2-yl-benzenesulfonamideHCID 57551197—

Reaction Conditions

Temperature100 °C

Reaction Steps

Into a vial was added the [B] 4-bromo-2-fluoro-N-thiazol-2-yl-benzenesulfonamide (170 mg, 0.00050 mol), sodium tert-butoxide (117 mg, 0.00121 mol), 9,9-dimethyl-4,5-bis(diphenylphosphino)xanthene (18 mg, 0.000030 mol), Tris(dibenzylideneacetone)dipalladium(0) (9.3 mg, 0.000010 mol) and 1,4-dioxane (1.58 mL, 0.0202 mol). Argon was bubbled for 15 minutes. Into the reaction was added the [2,4-dimethoxy-benzyl)-methyl-amine (110 mg, 0.00061 mol) and the reaction mixture was heated at 100° C. overnight. The reaction mixture was cooled to room temperature then filtered over Celite. The filtrate was concentrated to give the crude compound as a yellow solid that was used in the next step without purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08124610B2
Source datasetuspto-grants-2012_02
ORD IDord-a84de43490e343aa99edab0487d675f6
Source noteuspto-grants-2012_02