Lawesson's reagent → 4-methyl-7-[methyl(2-thienylsulfonyl)amino]-1H-indole-2-carbothioamide

HRID 1994710Notes

Reaction equation

[CH3:1][C:2]1[CH:10]=[CH:9][C:8]([N:11]([CH3:20])[S:12]([C:15]2[S:16][CH:17]=[CH:18][CH:19]=2)(=[O:14])=[O:13])=[C:7]2[C:3]=1[CH:4]=[C:5]([C:21]([NH2:23])=O)[NH:6]2.COC1C=CC(P2(SP(C3C=CC(OC)=CC=3)(=S)S2)=[S:33])=CC=1>O1CCCC1>[CH3:1][C:2]1[CH:10]=[CH:9][C:8]([N:11]([CH3:20])[S:12]([C:15]2[S:16][CH:17]=[CH:18][CH:19]=2)(=[O:14])=[O:13])=[C:7]2[C:3]=1[CH:4]=[C:5]([C:21](=[S:33])[NH2:23])[NH:6]2

Participants

Conditions

Temperature: 60 °C

Procedure

A mixture of 4-methyl-7-[methyl(2-thienylsulfonyl)amino]-1H-indole-2-carboxamide (1.78 g), Lawesson's reagent (2.26 g) and tetrahydrofuran (120 ml) was stirred at 60° C. for 2 hr. The reaction solution was concentrated under reduced pressure, and the obtained oil was crystallized from dichloromethane-toluene to give the title compound (1.56 g, yield 84%) as pale-yellow crystals. MS: 366 (MH+).

Workup

concentrationThe reaction solution was concentrated under reduced pressure
customthe obtained oil was crystallized from dichloromethane-toluene

Sources & evidence

ORD record: ord-553330c360c341e384440b4fe190e48b
Source dataset: uspto-grants-2010_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07652133B2

Reaction notes

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