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7-Fluoro-1-tetralone was prepared from 3-(4-fluorobenzoyl)-propionic acid by Wolff-Kishner reduction followed by ring closure with polyphosphoric acid and other substituted 1-tetralones where commercially available. Reduction of 3-(4-fluorobenzoyl)propionic acid with an excess of tert-butylamine borane (TBAB) in the presence of AlCl3 provided 4-(4-fluorophenyl)-1-butanol (87) in 63% yield for the synthesis of LM-1507 sodium salt. Penfluridol 1-[4,4-bis(4-fluorophenyl)butyl]-4-(4-chloro-3-trifluoromethylphenyl)- 4-hydroxypiperidine, C 28 H 27 ClF 5 NO, M r 523.99, mp 105 - 107°C, is obtained by reducing the ketone of 3-(4-fluorobenzoyl)propionic acid into a lactone.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
Warning
H315 - Causes skin irritation
H319 - Causes serious eye irritation
H335 - May cause respiratory irritation
P261 - Avoid breathing dust/fume/gas/mist/vapors/spray
P280 - Wear protective gloves/protective clothing/eye protection/face protection
P302 + P352 - IF ON SKIN: Wash with plenty of soap and water
P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing