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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1677294Generated: October 26, 2026

Hydrochloric Acid → 5-[5-Chloro-2-(1-fluoro-1-methyl-ethyl)-methoxy-phenoxy]-pyrimidine-2,4-diamine

https://huagongshe.com/reaction/1677294

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant(Diethylamino)sulfur trifluorideHCID 123472—
Reactant2-Fluoro-1,4-dimethoxybenzeneHCID 145002—
Reactant5-(5-Fluoro-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamineHCID 44573644—
CatalystPalladiumHCID 23938—
Product5-[5-Chloro-2-(1-fluoro-1-methyl-ethyl)-methoxy-phenoxy]-pyrimidine-2,4-diamineHCID 67053429—

Reaction Steps

Similarly prepared, but starting with 3-fluoro-1,4-dimethoxybenzene, and using hydrogenation with Pd/C in step 4 instead of DAST, was 5-(5-Fluro-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine (0.778 g, 42%); mp (HCl salt)=239-241° C.; [MH]+=293.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08008313B2
Source datasetuspto-grants-2011_08
ORD IDord-4c4640767b3240c5bfd4cf851f0a4e8f
Source noteuspto-grants-2011_08