Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 532980Generated: October 26, 2026

5-Ethynyl-1,2,3-trimethoxybenzene → 2,4-Diamino-5-(2-(3,4,5-trimethoxyphenyl)ethynyl)pyrimidine

https://huagongshe.com/reaction/532980

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Ethynyl-1,2,3-trimethoxybenzeneHCID 11830260—
Reactant5-Iodopyrimidine-2,4-diamineHCID 16110335—
Product2,4-Diamino-5-(2-(3,4,5-trimethoxyphenyl)ethynyl)pyrimidineHCID 1611032090%

Reaction Steps

2,4-Diamino-5-iodopyrimidine (236 mg) was allowed to react with 5-Ethynyl-1,2,3-trimethoxybenzene (384 mg) as per the general procedure to afford 2,4-Diamino-5-(2-(3,4,5-trimethoxyphenyl)ethynyl)pyrimidine as a white powder (270 mg, 90%): Rf=0.28 (9:1, CHCl3:MeOH); mp=202-204° C.; 1H NMR (DMSO-d6) δ 7.94 (s, 1H), 6.90 (s, 2H), 6.37 (s, 2H), 3.79 (s, 6H), 3.67 (s, 3H); 13C NMR (DMSO-d6) δ 163.4, 162.2, 159.4, 159.2, 152.8, 137.6, 118.6, 108.3, 108.2, 94.7, 89.8, 83.4, 60.2, 60.1, 56.0, 55.9; Anal. (C15H16N4O3) C, H, N.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08853228B2
Source datasetuspto-grants-2014_10
ORD IDord-e4bd626713dd403dbffca7555f25406d
Source noteuspto-grants-2014_10