Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 908676Generated: October 27, 2026

Triethylamine → 2.2'-[(methylimino)dibutane-4,1-diyl]bis(1H-isoindole-1.3(2H)-dione)

https://huagongshe.com/reaction/908676

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantN-(4-Bromobutyl)phthalimideHCID 93575—
Reactant2-[4-(Methylamino)butyl]isoindoline-1,3-dioneHCID 59838176—
SolventTetrahydrofuranHCID 8028—
Product2.2'-[(methylimino)dibutane-4,1-diyl]bis(1H-isoindole-1.3(2H)-dione)HCID 67392620—

Reaction Conditions

Temperature165 °C

Reaction Steps

209 mg (0.9 mmol) of 2-[4-(methylamino)butyl]-1H-isoindole-1.3(2H)-dione is solubilized in 5 ml of tetrahydrofuran, then 385 μl (2.7 mmol; 3 equivalents) of triethylamine and 254 mg (0.9 mmol; 1 equivalent) of 2-(4-bromobutyl)-1H-isoindole-1.3(2H)-dione are added to the reaction mixture which is maintained for 25 minutes under microwaves at 165° C. The precipitate obtained is filtered and the filtrate concentrated under reduced pressure. The expected product is purified by chromatography on a silica column (eluent: dichloromethane/methanol: 95/5).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08017637B2
Source datasetuspto-grants-2011_09
ORD IDord-0b6e342cbe124722bfcbc667e20f65ef
Source noteuspto-grants-2011_09