반응 #1466

반응 방정식

2-bromo-5,6-dihydro-5,5-dimethyl-8-(phenylthio)-naphthalene

ethyl 4-vinylbenzoate

tri-o-tolylphosphine

→

title compound

Ethyl (E)-4-[2-(5,6-dihydro-5,5-dimethyl-8-(phenylthio)-naphthalenyl)ethenyl]benzoate

용매

triethylamine

반응 조건

후처리

1. 1
   농축The reaction was concentrated in vacuo
2. 2
   기타The residue was purified by flash chromatography (silica, 5% ethyl acetate in hexane)
3. 3
   기타followed by recrystallization

실험 절차

To a degassed solution of 0.35 g (1.0 mmol) of 2-bromo-5,6-dihydro-5,5-dimethyl-8-(phenylthio)-naphthalene (Compound A35) and 0.34 g (1.9 mmol) of ethyl 4-vinylbenzoate in 4.0 mL of triethylamine, was added 0.066 g (0.2 mmol) of tri-o-tolylphosphine and then 0.025 g (0.1 mmol) of palladium(II) acetate. The reaction was heated at 90° C. for 2.25 h. The reaction was concentrated in vacuo. The residue was purified by flash chromatography (silica, 5% ethyl acetate in hexane), followed by recrystallization using EtOH to afford the title compound as white crystals.

출처