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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 27184Generated: October 30, 2026

Water → HCID 13069713, compound

https://huagongshe.com/reaction/27184

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium borohydrideHCID 4311764—
Reactant3,4-Dimethyl-1-(3-methylphenyl)-1H-pyrrole-2,5-dioneHCID 13069831—
SolventMethanolHCID 887—
ProductHCID 13069713HCID 1306971392.1%

Reaction Steps

To 20 g (0.93 mole) of the resulting N-(3-methylphenyl)-dimethyl-maleimide in 180 ml of methanol is added at 20° 7.2 g (0.185 mole) of sodium borohydride in portions so small that the temperature does not exceed 40°. An intense evolution of gas is observed. The reaction mixture is initially a clear colourless solution, but soon becomes a white suspension, which is poured after one hour into water. The white substance which has precipitated out is filtered off, washed well with methanol and dried under reduced pressure to obtain 18.6 g of white crystals (92.1% of theory), which melt at 170°-172° (compound No. 9, Table I).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04220655
Source datasetuspto-grants-1980_09
ORD IDord-3fff823fcf614a8cba57b19eebddcbea
Source noteuspto-grants-1980_09