1H-Indole, 1-ethyl-2-methyl- → HCID 20442778, compound

HRID 616798Notes

Reaction equation

HRID 616798 reaction equation
[C:1]1([C:7]2[NH:8][C:9]3[C:14]([C:15]=2[C:16](=[O:24])[C:17]([Cl:23])=[C:18]([Cl:22])[C:19](O)=[O:20])=[CH:13][CH:12]=[CH:11][CH:10]=3)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH2:25]([N:27]1[C:35]2[C:30](=[CH:31][CH:32]=[CH:33][CH:34]=2)[CH:29]=[C:28]1[CH3:36])[CH3:26]>C(OC(=O)C)(=O)C>[C:1]1([C:7]2[NH:8][C:9]3[C:14]([C:15]=2[C:16]2([C:29]4[C:30]5[C:35](=[CH:34][CH:33]=[CH:32][CH:31]=5)[N:27]([CH2:25][CH3:26])[C:28]=4[CH3:36])[O:24][C:19](=[O:20])[C:18]([Cl:22])=[C:17]2[Cl:23])=[CH:13][CH:12]=[CH:11][CH:10]=3)[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1

Participants

4

Reactant 2

HCID 1704321H-Indole, 1-ethyl-2-methyl-HCID 54180223HCID 54180223, compound

Product 1

HCID 20442778HCID 20442778, compound

Reagents, catalysts & solvents 1

HCID 7918Acetic AnhydrideSolvent

Procedure

A mixture of 7.0 g (0.02 mole) of 4-(2-phenyl-3-indolyl)-2,3-dichloro-4-oxo-2-butenoic acid (prepared in part A above), 3.5 g (0.02 mole of 1-ethyl-2-methylindole and 200 ml of acetic anhydride was stirred at ambient temperature in an atmosphere of air for approximately seventeen hours. The pale blue solid that formed was collected by filtration and dried in vacuo at 60° C to obtain 5-(2-phenyl-3-indolyl)-5-(1-ethyl-2-methyl-3-indolyl)-3,4-dichloro-2(5H)-furanone (Formula V: R=Y=Y1 =H; R1 =C6H5 ; R2 =CH3CH2 ; R3 =CH3) as a tan-colored solid which started to sinter at 213° C and was completely melted at 225° C.

Workup

  1. customThe pale blue solid that formed
  2. filtrationwas collected by filtration
  3. customdried in vacuo at 60° C

Sources & evidence

ORD record
ord-a353bbbde902485b8f982b9682d52a44
Source dataset
uspto-grants-1978_02
Patent number
US04075224

Reaction notes

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