HCID 57971674, compound → HCID 57971713, compound

HRID 1009973Notes

Reaction equation

HRID 1009973 reaction equation
[CH2:1]([O:5][CH:6]([O:8][NH:9][C:10]([C:12]1[S:16][C:15]2[CH:17]=[C:18]([CH2:21][OH:22])[CH:19]=[CH:20][C:14]=2[CH:13]=1)=[O:11])[CH3:7])[CH:2]([CH3:4])[CH3:3]>C(Cl)Cl.O=[Mn]=O>[CH2:1]([O:5][CH:6]([O:8][NH:9][C:10]([C:12]1[S:16][C:15]2[CH:17]=[C:18]([CH:21]=[O:22])[CH:19]=[CH:20][C:14]=2[CH:13]=1)=[O:11])[CH3:7])[CH:2]([CH3:4])[CH3:3]

Participants

4

Reactant 1

HCID 57971674HCID 57971674, compound

Product 1

HCID 57971713HCID 57971713, compoundYield 82%

Reagents, catalysts & solvents 2

HCID 14801Manganese dioxideCatalystHCID 6344DichloromethaneSolvent

Procedure

To a solution of 6-hydroxymethyl-benzo[b]thiophene-2-carboxylic acid (1-isobutoxy-ethoxy) amide (600 mg, 1.86 mmol) in DCM (3 mL) was added MnO2 (2.1 g, 24.1 mmol). The mixture was stirred at ambient temperature for 30 min and then filtered through celite. The filtrate was concentrated to afford the title compound (435 mg, 82%). LCMS m/z 320 [M+−H]+, 1H NMR (300 MHz, MeOD), δ: 0.94 (6H, d J=6.7 Hz, 2×CH3), 1.45 (3H, d J=5.3 Hz, CH3), 1.87 (1H, m, CH), 3.40 (2H, m, CH2), 5.08 (1H, dd J=5.2, 10.6 Hz, CH), 7.89-8.09 (3H, m, ArH), 8.55 (1H, s, ArH), 10.11 (1H, s, CHO).

Workup

  1. filtrationfiltered through celite
  2. concentrationThe filtrate was concentrated

Sources & evidence

ORD record
ord-5f7d5dca5fe141e5a672d42f8ddd4568
Source dataset
uspto-grants-2011_07
Patent number
US07973181B2

Reaction notes

Loading…