Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 41030Generated: October 26, 2026

Water → Ammonia

https://huagongshe.com/reaction/41030

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantMethylamineHCID 6329—
ReactantAcetonitrileHCID 6342—
ReactantSodium CarbonateHCID 10340—
Reactant(+)-2-(2-Bromo-ethyl)-10-(3-hydroxy-phenyl)-6-methoxy-3a-methyl-3a,4,9,10-tetrahydro-2,9,10a-triaza-cyclopenta[b]fluorene-1,3-dioneHCID 68939448—
SolventTetrahydrofuranHCID 8028—
ProductAmmoniaHCID 222—
ProductDiisopropyl EtherHCID 7914—
Product(3aSR,10RS)-10-(3-Hydroxy-phenyl)-6-methoxy-3a-methyl-2-(2-methylamino-ethyl)-3a,4,9,10-tetrahydro-2,9,10a-triaza-cyclopenta[b]fluorene-1,3-dioneHCID 68937277—

Reaction Conditions

Temperature140 °C

Reaction Steps

To a solution of 150 mg (3aSR,10RS)-2-(2-Bromo-ethyl)-10-(3-hydroxy-phenyl)-6-methoxy-3a-methyl-3a,4,9,10-tetrahydro-2,9,10a-triaza-cyclopenta[b]fluorene-1,3-dione (example 24) in 5 ml acetonitrile are added 66 mg sodium carbonate and 920 μl of a 2 M solution of methyl amine in tetrahydrofurane. The mixture is heated in a sealed tube to 140° C. for 3 h using a microwave reactor. Water is added and the mixture is extracted with ethyl acetate. The organic layer is dried with magnesium sulfate. The solvent is removed under reduced pressure. After column chromatography (silica gel; ethyl acetate, methanol, ammonia 10:1:0.5) and trituration with diisopropylether, 60 mg of the title compound are obtained as a colorless solid. MS: m/z (MH+)=435.1

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08530493B2
Source datasetuspto-grants-2013_09
ORD IDord-3432da1bd2764eeba9be487c123b8bdf
Source noteuspto-grants-2013_09