Hydrochloric Acid → HCID 178444277, compound

HRID 1583229Notes

Reaction equation

HRID 1583229 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([O:11][C:12]([C:14]2[CH:19]=[CH:18][C:17]([C:20]3[CH:25]=[CH:24][C:23]([C@H:26]4[CH2:31][CH2:30][C@H:29]([CH2:32][CH2:33][CH2:34][CH2:35][CH3:36])[CH2:28][CH2:27]4)=[CH:22][CH:21]=3)=[CH:16][CH:15]=2)=[O:13])[CH:5]=[CH:6][C:7]=1[C:8](Cl)=[O:9].[Cl:37][C:38]1[CH:39]=[C:40]([OH:47])[CH:41]=[CH:42][C:43]=1[N+:44]([O-:46])=[O:45].Cl>C1C=CC=CC=1.N1C=CC=CC=1>[Cl:1][C:2]1[CH:3]=[C:4]([O:11][C:12]([C:14]2[CH:19]=[CH:18][C:17]([C:20]3[CH:21]=[CH:22][C:23]([C@H:26]4[CH2:31][CH2:30][C@H:29]([CH2:32][CH2:33][CH2:34][CH2:35][CH3:36])[CH2:28][CH2:27]4)=[CH:24][CH:25]=3)=[CH:16][CH:15]=2)=[O:13])[CH:5]=[CH:6][C:7]=1[C:8]([O:47][C:40]1[CH:41]=[CH:42][C:43]([N+:44]([O-:46])=[O:45])=[C:38]([Cl:37])[CH:39]=1)=[O:9]

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 102833-Chloro-4-nitrophenolHCID 178444276HCID 178444276, compound

Product 1

HCID 178444277HCID 178444277, compound

Reagents, catalysts & solvents 2

HCID 241BenzeneSolventHCID 1049PyridineSolvent

Conditions

Temperature
65 °C

Procedure

The crude 4'-(trans-4-pentylcyclohexyl)-4-biphenylcarboxylic acid 3-chloro-4-(chlorocarbonyl)phenyl ester obtained was dissolved in 150 ml of benzene and then added dropwise to a solution of 1.2 g of 3-chloro-4-nitrophenol in 110 ml of dry pyridine. The mixture was stirred at 65° C. overnight, then poured into a mixture of 500 ml of ice-water and 100 ml of concentrated hydrochloric acid and extracted with diethyl ether. The extract was washed three times with 100 ml of 3N hydrochloric acid each time and three times with 200 ml of water each time, then dried and evaporated. The crude 4'-(trans-4-pentylcyclohexyl)-4-biphenylcarboxylic acid 3-chloro-4-[(3-chloro-4-nitrophenoxy)carbonyl]phenyl ester obtained was chromatographed on silica gel with toluene/acetone (volume ratio 19:1). The fractions which were almost pure according to thin-layer chromatography (2.8 g) were recrystallized twice from ethyl acetate; m.p. (C-N) 132° C., cl.p. >250° C. (decomposition).

Workup

  1. extractionextracted with diethyl ether
  2. washThe extract was washed three times with 100 ml of 3N hydrochloric acid each time and three times with 200 ml of water each time
  3. customdried
  4. customevaporated

Sources & evidence

ORD record
ord-a33fbc0e097f4330994d2be4390af8db
Source dataset
uspto-grants-1985_11
Patent number
US04550981

Reaction notes

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