Reacción #83616

Ecuación de reacción

tetrahydrofuran

(+)(2aR,4S)-1-benzoyl-6-iodo-4-(di-n-propylamino)-1,2,2a,3,4,5-hexahydrobenz[cd]indole

2-(tributylstannyl)furan

→

ammonium hydroxide

Rendimiento 0.5%

title compound

(-)(2aR,4S)-6-(2-furyl)-4-(di-n-propylamino)-1,2,2a,3,4,5-hexahydrobenz[cd]indole

Disolventes

ethyl acetate hexane

Condiciones de reacción

Tratamiento posterior

1. 1
   Otrocap
2. 2
   workup.WAITAfter 24 hours
3. 3
   Temperaturathe reaction mixture was cooled
4. 4
   Filtraciónfiltered through a celite pad
5. 5
   Concentraciónthe resulting filtrate was then concentrated in vacuo
6. 6
   Otroto provide a viscous orange oil

Procedimiento

To a sealable tube with threads containing 13 ml of dry tetrahydrofuran were added 1.2 g (2.46 mmol) of (+)(2aR,4S)-1-benzoyl-6-iodo-4-(di-n-propylamino)-1,2,2a,3,4,5-hexahydrobenz[cd]indole, 968 mg (2.71 mmol) of 2-(tributylstannyl)furan and 200 mg of bis(triphenylphosphine)palladium(II) chloride. The resulting mixture was then deaerated with argon for 15 minutes. After deaeration, the tube was sealed with a teflon cap and the contents thereof were heated to 100° C. for 24 hours. After 24 hours, the reaction mixture was cooled, filtered through a celite pad and the resulting filtrate was then concentrated in vacuo to provide a viscous orange oil. Flash chromatography of this oil over silica gel with 60% ethyl acetate/hexane plus 0.5% ammonium hydroxide as gave the protected analog of the title compound in 61% yield.

Fuente