(2-iodophenyl)methanol

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A suspension of pyridinium chlorochromate (8.28 g, 38.4 mmol) and dry celite (5.00 g) in dry dichloromethane was stirred at room temperature for 15 min. 2-Iodobenzyl alcohol (3.03 g, 12.9 mmol) in dry dichloromethane (50 ml) was added. The suspension was shielded from light and stirred at room temperature for 2 h after which it was diluted with ether, and filtered through celite. The cloudy brown filtrate was concentrated to a red-brown gummy solid which was dissolved in dichloromethane and passed through a short silica column, eluting with dichloromethane. The solution was concentrated to give 2-iodobenzaldehyde (19) as a pale yellow oil (2.87 g, 95%). dry celite (5.00 g) in dry dichloromethane stirred at room temperature for 2 h after which it filtered through celite The cloudy brown filtrate was concentrated to a red-brown gummy solid which was dissolved in dichloromethane eluting with dichloromethane The solution was concentrated

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of 2-iodobenzyl alcohol (50 g) in diethyl ether (500 mL), cooled in an ice-water bath, was added dropwise phosphorus tribromide (28 mL). The reaction mixture was chilled in a refrigerator for 3.5 h, then quenched by slow addition of methanol (50 mL). The mixture was washed with water, then saturated sodium bicarbonate, then water (100 mL each). The organic phase was dried (MgSO4), filtered and concentrated under reduced pressure to a white solid, which was triturated in hexane and collected by filtration to yield 58 g (91%) of the title material of Step A as a solid, mp 55-57° C. The reaction mixture was chilled in a refrigerator for 3.5 h quenched by slow addition of methanol (50 mL) The mixture was washed with water The organic phase was dried (MgSO4) filtered concentrated under reduced pressure to a white solid, which was triturated in hexane collected by filtration