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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 133538Generated: October 31, 2026

1-Cyclopropyl-butane-1,3-dione → HCID 11661922, compound

https://huagongshe.com/reaction/133538

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Cyclopropyl-butane-1,3-dioneHCID 11018869—
ReactantHCID 68896666HCID 68896666—
CatalystSulfuric AcidHCID 1118—
SolventAcetic AcidHCID 176—
ProductHCID 11661922HCID 1166192221.1%

Reaction Conditions

Temperature100 °C

Reaction Steps

To a stirred solution of 36 mg (0.11 mmol) (2-amino-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophen-3-yl)-(3,4-dichloro-phenyl)-methanone in 2 ml acetic acid was added 18 mg (0.11 mmol) of 1-cyclopropyl-butane-1,3-dione and one drop of sulfuric acid. The mixture was then stirred at 100° C. for 10 minutes in a microwave and then concentrated in vacuo. Preparative HPLC (30% CH3CN/H20) afforded 10 mg (19%) cyclopropyl-[4-(3,4-dichlorophenyl)-2-methyl-6,7,8,9-tetrahydro-5H-10-thia-1-aza-benzo[a]azulen-3-yl)-methanone as a light yellow oil. ES-MS m/e (%): 430 (M+H+, 100).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07390903B2
Source datasetuspto-grants-2008_06
ORD IDord-365e31afe47a4f52975954ebc136e1d2
Source noteuspto-grants-2008_06