Potassium Phosphate, Tribasic → methyl 9-benzenesulfonyl-9H-[1,9']bicarbazolyl-1'-carboxylate

HRID 76376

Reaction equation

HRID 76376 reaction equation
[C:1]1([C:14]([O:16][CH3:17])=[O:15])[C:13]2[NH:12][C:11]3[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=3)[C:5]=2[CH:4]=[CH:3][CH:2]=1.[C:18]1([S:24]([N:27]2[C:39]3[C:38](Br)=[CH:37][CH:36]=[CH:35][C:34]=3[C:33]3[C:28]2=[CH:29][CH:30]=[CH:31][CH:32]=3)(=[O:26])=[O:25])[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1.P([O-])([O-])([O-])=O.[K+].[K+].[K+]>O1CCOCC1.[Cu]I>[C:18]1([S:24]([N:27]2[C:39]3[C:38]([N:12]4[C:13]5[C:1]([C:14]([O:16][CH3:17])=[O:15])=[CH:2][CH:3]=[CH:4][C:5]=5[C:6]5[C:11]4=[CH:10][CH:9]=[CH:8][CH:7]=5)=[CH:37][CH:36]=[CH:35][C:34]=3[C:33]3[C:28]2=[CH:29][CH:30]=[CH:31][CH:32]=3)(=[O:25])=[O:26])[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=1

Participants

6

Reactant 3

HCID 62657Potassium Phosphate, TribasicHCID 643304methyl 9H-carbazole-1-carboxylateHCID 674051829-(Benzenesulfonyl)-1-bromocarbazole

Product 1

HCID 68243195methyl 9-benzenesulfonyl-9H-[1,9']bicarbazolyl-1'-carboxylate

Reagents, catalysts & solvents 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 312751,4-DioxaneSolvent

Procedure

8.0 g (42.2 mmol) of copper(I) iodide, 11.7 ml (97.5 mmol) of trans-cyclo-hexanediamine are added to a well-stirred suspension of 26.3 g (117 mmol) of methyl 9H-carbazole-1-carboxylate, 45.2 g (117 mmol) of 9-benzenesulfonyl-1-bromo-9H-carbazole and 416.4 g (1961 mmol) of potassium phosphate in 1170 ml of dioxane, and the mixture is subsequently heated under reflux for 16 h. After cooling, the precipitated solid is filtered off with suction, washed three times with 50 ml of toluene, three times with 50 ml of ethanol:water (1:1, v:v) and three times with 100 ml of ethanol. Yield: 43 g (81 mmol), 70% of theory.

Workup

  1. temperaturethe mixture is subsequently heated
  2. temperatureunder reflux for 16 h
  3. temperatureAfter cooling
  4. filtrationthe precipitated solid is filtered off with suction
  5. washwashed three times with 50 ml of toluene, three times with 50 ml of ethanol:water (1:1, v:v) and three times with 100 ml of ethanol

Sources & evidence

ORD record
ord-0c25fe28c9c74fb2ae1b964d5d9b0360
Source dataset
uspto-grants-2014_09
Patent number
US08835626B2

Linked notes

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