HCID 57115911, compound → HCID 14766831, compound

HRID 2371339Notes

Reaction equation

HRID 2371339 reaction equation
[CH2:1]([O:3][C:4]1[CH:9]=[CH:8][C:7]([CH:10]=[CH:11][C:12]2[CH:17]=[CH:16][C:15]([C:18]3[CH:23]=[CH:22][C:21]([CH2:24][CH2:25][CH2:26][CH2:27][CH3:28])=[CH:20][CH:19]=3)=[CH:14][CH:13]=2)=[CH:6][CH:5]=1)[CH3:2]>O1CCCC1.[Pd]>[CH2:1]([O:3][C:4]1[CH:5]=[CH:6][C:7]([CH2:10][CH2:11][C:12]2[CH:17]=[CH:16][C:15]([C:18]3[CH:19]=[CH:20][C:21]([CH2:24][CH2:25][CH2:26][CH2:27][CH3:28])=[CH:22][CH:23]=3)=[CH:14][CH:13]=2)=[CH:8][CH:9]=1)[CH3:2]

Participants

4

Reactant 1

HCID 57115911HCID 57115911, compound

Product 1

HCID 14766831HCID 14766831, compound

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 8028TetrahydrofuranSolvent

Procedure

A solution of 10.6 g of 1-(p-ethoxyphenyl)-2-(4'-n-pentylbiphenyl-4-yl)ethene [obtained by Heck coupling of 4-ethoxystyrene with 4-bromo-4'-n-pentylbiphenyl] in 200 ml of tetrahydrofuran is hydrogenated in the presence of Pd/C until the take-up of H is complete. Customary work-up gives 1-(p-ethoxyphenyl)-2-(4'-n-pentylbiphenyl-4-yl)ethane, mp. 81°, cp. 145°.

Sources & evidence

ORD record
ord-18df1d1fa86a4a85a776c6a2ad2e4a65
Source dataset
uspto-grants-1992_03
Patent number
US05093026

Reaction notes

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