HCID 69247959, compound → HCID 69250567, compound

HRID 2220683Notes

Reaction equation

HRID 2220683 reaction equation
[Br:1][C:2]1([C:31]2[CH:36]=[CH:35][C:34]([O:37]C)=[CH:33][CH:32]=2)[C:6]([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=2)=[C:5]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)[C:4]([C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=2)=[C:3]1[C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1>Br>[Br:1][C:2]1([C:31]2[CH:32]=[CH:33][C:34]([OH:37])=[CH:35][CH:36]=2)[C:6]([C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][CH:12]=2)=[C:5]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)[C:4]([C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=2)=[C:3]1[C:25]1[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=1

Participants

3

Reactant 1

HCID 69247959HCID 69247959, compound

Product 1

HCID 69250567HCID 69250567, compound

Reagents, catalysts & solvents 1

HCID 260Hydrogen BromideSolvent

Procedure

44.44 g (0.08 mol) of 5-bromo-1,2,3,4-tetraphenyl-5-p-methoxyphenylcyclopenta-1,3-diene in 400 ml of concentrated HBr were refluxed for 24 h. The product was filtered off with suction and washed with water. It was recrystallized in toluene. (Yield: 35.05 g (81%); elemental analysis for C35H25OBr: found: C, 77.60%, H, 4.58%. calculated: C, 77.64%, H, 4.65%).

Workup

  1. filtrationThe product was filtered off with suction
  2. washwashed with water
  3. customIt was recrystallized in toluene

Sources & evidence

ORD record
ord-2f80229859434a73a7764f9ae2d863ed
Source dataset
uspto-grants-2008_08
Patent number
US07417247B2

Reaction notes

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