2,3,4,5-Tetrachloropyridine → Pyridine, 2,3,5-trichloro-

HRID 128056

Reaktionsgleichung

Reaktionsgleichung von HRID 128056
[Cl:1][C:2]1[C:7]([Cl:8])=[C:6](Cl)[C:5]([Cl:10])=[CH:4][N:3]=1.COP(C)(=O)O>[Zn]>[Cl:1][C:2]1[C:7]([Cl:8])=[CH:6][C:5]([Cl:10])=[CH:4][N:3]=1

Komponenten

4

Edukt 2

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

Produkt 1

HCID 27666Pyridine, 2,3,5-trichloro-Ausbeute 76,7 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 23994ZincKatalysator

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%) and 9.5 g (0.075 mol) of the ammonium salt of methanephosphonic acid monomethyl ester are reacted to obtain 7.0 g (76% of theory) of 2,3,5-trichloropyridine, m.p. 37°-40° C., which contains, according to gas-chromatographical analysis, 78.8% of 2,3,5-trichloropyridine, 2.5% of 2,3,4,5-tetrachloropyridine and 0.61% of unknown products.

Aufarbeitung

  1. customare reacted

Quellen und Nachweise

ORD-Eintrag
ord-f50452bfcca443a187655f2f5c207888
Quelldatensatz
uspto-grants-1981_03
Patentnummer
US04258194

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