Thiophenol → HCID 9931973, compound

HRID 1637195Notes

Reaction equation

N12CCCN=C1CCCCC2.Cl[C:13]1[C:14]2[CH:26]=[CH:25][C:24]([O:27][CH2:28][C:29]3[CH:30]=[N:31][CH:32]=[CH:33][CH:34]=3)=[CH:23][C:15]=2[S:16][C:17]=1[C:18]([O:20][CH2:21][CH3:22])=[O:19].[C:35]1([SH:41])[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=1>CN(C)C=O>[C:35]1([S:41][C:13]2[C:14]3[CH:26]=[CH:25][C:24]([O:27][CH2:28][C:29]4[CH:30]=[N:31][CH:32]=[CH:33][CH:34]=4)=[CH:23][C:15]=3[S:16][C:17]=2[C:18]([O:20][CH2:21][CH3:22])=[O:19])[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=1

Participants

Conditions

Temperature: 60 °C

Procedure

1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU--1.46 ml, 9.5 mmol) was added to a mixture of ethyl 3-chloro-6-(3-pyridylmethoxy)benzo[b]thiophene-2-carboxylate (Preparation 4, 3.0 g, 8.6 mmol) and thiophenol (1.76 ml, 17.2 mmol) in dimethylformamide (15 ml) under a nitrogen atmosphere. The solution was heated to 60° C. for 5 hours and then partitioned between diethyl ether and water. The organics were separated and washed with water, dried (magnesium sulfate) and evaporated under reduced pressure. The residue was flash chromatographed on silica gel using diethyl ether, and then ethyl acetate, as eluant. The isolated product was crystallised from diethyl ether and hexane to give the title compound as a colourless solid (2.85 g).

Workup

custompartitioned between diethyl ether and water
customThe organics were separated
washwashed with water
dry with materialdried (magnesium sulfate)
customevaporated under reduced pressure
customchromatographed on silica gel
customThe isolated product was crystallised from diethyl ether and hexane

Sources & evidence

ORD record: ord-1455412dbbfb46999c58fac4f70c989f
Source dataset: uspto-grants-2000_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06040309

Reaction notes

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