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US 2015/0025245 A1Published application
Process for preparing chloroamines
AssigneeBayer Intellectual Property GmbH
InventorMark James Ford
Life of this patent
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Abstract
The present application relates to a process for preparing chloroamines which can be used as precursors for syntheses of fine chemicals and active ingredients from pharmaceuticals and/or agriculture, by reaction of secondary amines of the formula (II) with chlorine gas in the presence of an aqueous alkali metal or alkaline earth metal oxide base.
Claims9
Process for preparing a chloroamine of formula (I)
- wherein
- R1 and R2 are each independently selected from the group consisting of (C1-C8)alkyl optionally substituted by 1 or 2 R3 radicals;
- or
- R1 and R2 together form a —(CH2)4-, —(CH2)5- or —(CH2)2O(CH2)2-group, where each of these groups may optionally be substituted by 1-4 R4 radicals;
- R3 are each independently selected from halogen, (C1-C3)alkoxy, (C1-C3)haloalkoxy, (C1-C3)alkylamino, (C2-C4)dialkylamino and (C2-C4)alkoxycarbonyl;
- R4 is selected from halogen, (C1-C3)alkyl, (C1-C3)alkoxy, (C1-C3) haloalkoxy, (C1-C3)alkylamino, (C2-C4)dialkylamino and (C2-C4)alkoxycarbonyl,
- by reaction of one or more secondary amines of formula (II)
- with chlorine gas in the presence of an aqueous alkali metal or alkaline earth metal oxide base.
5 more elements
Dependencies are inferred from the claim text.