Water → Methyl 1-(isoquinolin-1-yl)-1H-pyrrole-3-carboxylate

HRID 1792795Notes

Reaction equation

C(=O)([O-])[O-].[K+].[K+].[CH3:7][O:8][C:9]([C:11]1[CH:15]=[CH:14][NH:13][CH:12]=1)=[O:10].Cl[C:17]1[C:26]2[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=2)[CH:20]=[CH:19][N:18]=1.O>CS(C)=O>[CH3:7][O:8][C:9]([C:11]1[CH:15]=[CH:14][N:13]([C:17]2[C:26]3[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=3)[CH:20]=[CH:19][N:18]=2)[CH:12]=1)=[O:10]

Participants

Conditions

Temperature: 100 °C

Procedure

1.04 g (7.5 mmol) of potassium carbonate are added at 20° C. under an argon atmosphere to 0.376 g (3 mmol) of 3-methoxycarbonyl-1H-pyrrole and 0.49 g (3 mmol) of 1-chloroisoquinoline dissolved in 6 mL of dimethyl sulphoxide. After stirring at 100° C. for 22 hours, the reaction mixture is poured into 15 mL of water and is then allowed to crystallise for 1 hour at 20° C. After filtering the reaction mixture and air-drying the solid residue, 0.67 g of 3-methoxycarbonyl-1-(isoquinol-1-yl)-1H-pyrrole is obtained in the form of a beige-coloured solid melting at 86° C. Mass spectrum (EI): m/e 252 (M+.), m/e 221.

Workup

customto crystallise for 1 hour at 20° C
filtrationAfter filtering the reaction mixture
customair-drying the solid residue

Sources & evidence

ORD record: ord-7eea0a2e7ebc4fc99f7138cf5f09a335
Source dataset: uspto-grants-2006_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07078414B2

Reaction notes

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