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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1297438Generated: October 25, 2026

Tri-o-tolylphosphine → (E)-3-(2-aminopyrimidin-5-yl)-N-(2-methyl-1H-indol-3-ylmethyl)-N-methylacrylamide

https://huagongshe.com/reaction/1297438

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTri-o-tolylphosphineHCID 80271—
ReactantDiisopropylethylamineHCID 81531—
Reactant2-Amino-5-bromopyrimidineHCID 231310—
ReactantN-(2-methyl-1H-indol-3-ylmethyl)-N-methylacrylamideHCID 22139057—
Catalystpalladium(II) acetateHCID 167845—
SolventDimethylformamideHCID 6228—
SolventPropionitrileHCID 7854—
Product(E)-3-(2-aminopyrimidin-5-yl)-N-(2-methyl-1H-indol-3-ylmethyl)-N-methylacrylamideHCID 9973366128.8%

Reaction Steps

A solution of N-methyl-N-(2-methyl-1H-indol-3-ylmethyl)acrylamide (1.18 g, 6.5 mmole), 2-amino-5-bromopyrimidine (0.5 g, 2.9 mmole), Pd(OAc)2 (0.11 g, 0.49 mmole), tri-ortho-tolylphosphine (0.17 g, 0.55 mmole), and diisopropylethylamine (1.5 mL, 8.6 mmole) in propionitrile (100 mL) and DMF (10 mL) was heated at reflux overnight. The dark mixture was filtered through celite®, and the filtrate was concentrated. Flash chromatography on silica gel (9:1 CHCl3/CH3OH containing 5% NH4OH) gave the title compound (1.2 g, 65%): MS (ES) m/e 372 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07250424B2
Source datasetuspto-grants-2007_07
ORD IDord-847b775e0a8c4f029b2aded48a3e58fe
Source noteuspto-grants-2007_07