Tetramethylammonium → Pyridine, 2,3,5-trichloro-

HRID 128055

Reaktionsgleichung

Reaktionsgleichung von HRID 128055
[Cl:1][C:2]1[C:7]([Cl:8])=[C:6](Cl)[C:5]([Cl:10])=[CH:4][N:3]=1.C[N+](C)(C)C.COP(C)(=O)O>P(OC)(OC)(OC)=O.[Zn]>[Cl:1][C:2]1[C:7]([Cl:8])=[CH:6][C:5]([Cl:10])=[CH:4][N:3]=1

Komponenten

6

Edukt 3

HCID 6380TetramethylammoniumHCID 760512,3,4,5-TetrachloropyridineHCID 316552Monomethyl methylphosphonate

Produkt 1

HCID 27666Pyridine, 2,3,5-trichloro-Ausbeute 78 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 23994ZincKatalysatorHCID 10541Trimethyl PhosphateLösungsmittel

Versuchsvorschrift

By the method described in Example 1, 11.0 g (0.05 mol) of 2,3,4,5-tetrachloropyridine, 4.4 g (0.065 gram atom) of zinc dust (96.5%) and 24.7 g (0.135 mol) of the tetramethylammonium salt of methanephosphonic acid monomethyl ester in 90 ml of trimethyl phosphate are reacted to obtain 7.1 g (78% of theory) of 2,3,5-trichloropyridine, m.p. 47°-47.5° C., which contains, according to gas-chromatographical analysis, 97.6% of 2,3,5-trichloropyridine, 0.4% of 2,3,4,5-tetrachloropyridine and 1.4% of unknown products.

Aufarbeitung

  1. customare reacted

Quellen und Nachweise

ORD-Eintrag
ord-cb6cf263b5cc457780a0386174dd4ae1
Quelldatensatz
uspto-grants-1981_03
Patentnummer
US04258194

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