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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 847527Generated: October 30, 2026

Methanol → HCID 54016559, compound

https://huagongshe.com/reaction/847527

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantTetrahydrofuranHCID 8028—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 54404422HCID 54404422—
SolventAcetic AcidHCID 176—
SolventWaterHCID 962—
ProductHCID 54016559HCID 5401655976.5%

Reaction Conditions

Temperature80 °C

Reaction Steps

To a solution of 8,9-dihydro-10-methyl-7-[(5-methyl-1-tosyl-1H-imidazol-4-yl)methylene]pyrido[1,2-a]indol-6(7H)-one (1.0 g) in the mixture of tetrahydrofuran (10 ml) and methanol (10 ml) was added 2N-sodium hydroxide. The mixture was heated at 80° C. for 5 hours. After being cooled, the reaction mixture was neutralized with acetic acid, and added water (40 ml). The precipitates were filtered to give 8,9-dihydro-10-methyl-7-[(5-methyl-1H-imidazol-4-yl)methylene]pyrido[1,2-a]indol-6(7H)-one (0.5 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05141945
Source datasetuspto-grants-1992_08
ORD IDord-ae88541da5ad4ee09b40788de735b252
Source noteuspto-grants-1992_08