Triethylamine → Isopropyl 3(2-chloro-4-fluoro-5-isothiocyanatophenyl)tetrahydro-5-methyl-2,4,6-trioxo-s-triazine-1(2H)-acetate

HRID 725233Notes

Reaction equation

HRID 725233 reaction equation
[C:1](Cl)(Cl)=[S:2].[NH2:5][C:6]1[C:7]([F:30])=[CH:8][C:9]([Cl:29])=[C:10]([N:12]2[C:17](=[O:18])[N:16]([CH3:19])[C:15](=[O:20])[N:14]([CH2:21][C:22]([O:24][CH:25]([CH3:27])[CH3:26])=[O:23])[C:13]2=[O:28])[CH:11]=1.C(N(CC)CC)C>O1CCCC1>[Cl:29][C:9]1[CH:8]=[C:7]([F:30])[C:6]([N:5]=[C:1]=[S:2])=[CH:11][C:10]=1[N:12]1[C:17](=[O:18])[N:16]([CH3:19])[C:15](=[O:20])[N:14]([CH2:21][C:22]([O:24][CH:25]([CH3:27])[CH3:26])=[O:23])[C:13]1=[O:28]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 10040ThiophosgeneHCID 57313385isopropyl 3-(5-amino-2-chloro-4-fluorophenyl)tetrahydro-5-methyl-2,4,6-trioxo-s-triazine-1(2H)-acetate

Product 1

HCID 11729649Isopropyl 3(2-chloro-4-fluoro-5-isothiocyanatophenyl)tetrahydro-5-methyl-2,4,6-trioxo-s-triazine-1(2H)-acetate

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Procedure

Thiophosgene (0.50 mL, 6.5 mmol) is added over 45 minutes to a solution of isopropyl 3-(5-amino-2-chloro-4-fluorophenyl)tetrahydro-5-methyl-2,4,6-trioxo-s-triazine-1(2H)-acetate (2.5 g, 6.5 mmol), and triethylamine (1.8 mL, 13.0 mmol) in tetrahydrofuran. The reaction mixture is stirred at room temperature for 4 hours, diluted with tetrahydrofuran, and filtered. The filtrate is concentrated in vacuo to give the title product as an orange oil which is identified by NMR spectral analyses.

Workup

  1. filtrationfiltered
  2. concentrationThe filtrate is concentrated in vacuo

Sources & evidence

ORD record
ord-9553192e2f7244799470ce7e189e3c74
Source dataset
uspto-grants-1998_01
Patent number
US05705644

Reaction notes

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