4-Bromophenylhydrazine → HCID 23460529, compound

HRID 2286846Notes

Reaction equation

HRID 2286846 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[S:8][CH2:7][CH:6]([C:12]([O:14]C)=[O:13])[C:5]2=O.[Cl:17][C:18]1[CH:23]=[CH:22][C:21]([NH:24][NH2:25])=[CH:20][CH:19]=1.[Br:26][C:27]1[CH:32]=[CH:31][C:30]([NH:33][NH2:34])=[CH:29][CH:28]=1>>[Cl:1][C:2]1[CH:11]=[CH:10][C:9]2[S:8][CH2:7][C:6]3[C:12](=[O:14])[N:24]([C:21]4[CH:22]=[CH:23][C:18]([Cl:17])=[CH:19][CH:20]=4)[NH:25][C:5]=3[C:4]=2[CH:3]=1.[Cl:1][C:2]1[CH:11]=[CH:10][C:9]2[S:8][CH2:7][C:6]3[C:12](=[O:13])[N:33]([C:30]4[CH:31]=[CH:32][C:27]([Br:26])=[CH:28][CH:29]=4)[NH:34][C:5]=3[C:4]=2[CH:3]=1

Participants

5

Reactant 3

HCID 121584-BromophenylhydrazineHCID 70624(4-Chlorophenyl)hydrazineHCID 23460534HCID 23460534, compound

Product 2

HCID 23460529HCID 23460529, compoundHCID 23460540HCID 23460540, compound

Procedure

By the same procedure methyl 6-chloro-4-oxothiochroman-3-carboxylate was reacted with 4-chlorophenylhydrazine and 4-bromophenylhydrazine to yield 8-chloro-2-(4-chlorophenyl)-1,2,3,4-tetrahydro[1]benzothiopyrano[4,3-c]pyrazol-3-one (m.p. 237°-240° C.) and 8-chloro-2-(4-bromophenyl)-1,2,3,4-tetrahydro[1]benzothiopyrano[4,3-c]pyrazol-3-one (m.p. 257°-260° C.), respectively.

Sources & evidence

ORD record
ord-4682fe76536547c89646573212735ac1
Source dataset
uspto-grants-1981_05
Patent number
US04268516

Reaction notes

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