Borane, dichlorophenyl- → Bis(indenyl) (phenyl)borane

HRID 1738600Notes

Reaction equation

HRID 1738600 reaction equation
Cl[B:2](Cl)[C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.[CH:10]1([Li])[C:18]2[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=2)[CH:12]=[CH:11]1>C(OCC)C>[CH:10]1([B:2]([CH:10]2[C:18]3[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=3)[CH:12]=[CH:11]2)[C:3]2[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=2)[C:18]2[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=2)[CH:12]=[CH:11]1

Participants

4

Reactant 2

HCID 136678Borane, dichlorophenyl-HCID 178506815HCID 178506815, compound

Product 1

HCID 15873885Bis(indenyl) (phenyl)boraneYield 74.3%

Reagents, catalysts & solvents 1

HCID 3283Diethyl EtherSolvent2×

Procedure

In 50 ml of diethyl ether, 5.01 g (31.5 mmol) of dichloro(phenyl)borane is cooled to -78° C. and a solution of 7.70 g (63.1 mmol) of indenyllithium in 50 ml of diethyl ether is added dropwise within one hour. After warming to room temperature, the mixture is filtered, and the slightly yellow filtrate is highly concentrated in vacuo. Gradual cooling from 0° C. to -20° C. results in the formation of 7.45 g (74%) of bis(indenyl) (phenyl)borane in the form of colorless crystals.

Workup

  1. filtrationthe mixture is filtered
  2. concentrationthe slightly yellow filtrate is highly concentrated in vacuo
  3. temperatureGradual cooling from 0° C. to -20° C.

Sources & evidence

ORD record
ord-1714a656bb664564913f62337e3e4b1c
Source dataset
uspto-grants-1999_10
Patent number
US05962718

Reaction notes

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