Pentachloropyridine → 2,3,5,6-Tetrachloropyridine

HRID 128370

反応式

HRID 128370 の反応式
[Cl:1][C:2]1[N:7]=[C:6]([Cl:8])[C:5]([Cl:9])=[C:4](Cl)[C:3]=1[Cl:11].P([O-])([O-])(O)=O.[NH4+].[NH4+]>[Zn]>[Cl:8][C:6]1[C:5]([Cl:9])=[CH:4][C:3]([Cl:11])=[C:2]([Cl:1])[N:7]=1

参加物

4

反応物 2

HCID 16584PentachloropyridineHCID 24540Diammonium hydrogen phosphate

生成物 1

HCID 169902,3,5,6-Tetrachloropyridine収率 94.1%

試薬・触媒・溶媒 1

HCID 23994Zinc触媒

実験手順

On reaction of 12.76 g (0.05 mol) of pentachloropyridine with 4.1 g (0.063 gram atom) of zinc dust and 10.6 g (0.08 mol) of diammonium hydrogen phosphate using the method described in Example 1, there is obtained 10.2 g (93% of theory) of crude 2,3,5,6-tetrachloropyridine, which contains, according to gas-chromatographical analysis, 95.1% of 2,3,5,6-tetrachloropyridine, 0.8% of 2,3,5-trichloropyridine, 0.5% of 2,3,6-trichloropyridine and 3.6% of pentachloropyridine.

出典と根拠

ORDレコード
ord-4d30249f83bf4ba3be0ff54216fd6a30
出典データセット
uspto-grants-1981_03
特許番号
US04259495

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