Water → HCID 86702676, compound

To a flame-dried two-neck 50 mL round-bottomed flask equipped with an argon inlet adapter, a septum, and a stir bar was added PdCl2(PPh3)2 (0.024 g, 0.034 mmol), THF (6 mL), triethylamine (0.29 mL, 2.06 mmol), and benzoyl chloride (0.24 mL, 2.06 mmol). The solution was stirred for 10 min at rt, and copper(I) iodide (0.013 g, 0.069 mmol) was added all at once through the sidearm turning the reaction from cloudy yellow to clear orange. The reaction was stirred for 10 min, and enyne S16 (0.296 g, 1.72 mmol) in THF (0.5 mL) was added all at once via syringe. The reaction was stirred for 4 h until complete by TLC, in which time the reaction became cloudy and orange. Water was added to the reaction, and the aqueous layer was separated and extracted with EtOAc (2×). The combined organic layers were washed with 1 M hydrochloric acid, sat'd aq ammonium chloride, and brine, dried over magnesium sulfate, gravity filtered, and concentrated under reduced pressure. The crude product was purified by silica gel column chromatography (50 g silica cartridge, 0-10% ethyl acetate/hexanes) to yield product 5n as a yellow oil (0.330 g, 69%).

1. customTo a flame-dried two-neck 50 mL round-bottomed flask equipped with an argon inlet adapter
2. customthe reaction from cloudy yellow to clear orange
3. stirringThe reaction was stirred for 10 min
4. stirringThe reaction was stirred for 4 h until complete by TLC
5. customthe aqueous layer was separated
6. extractionextracted with EtOAc (2×)
7. washThe combined organic layers were washed with 1 M hydrochloric acid
8. dry with materialdried over magnesium sulfate, gravity
9. filtrationfiltered
10. concentrationconcentrated under reduced pressure
11. customThe crude product was purified by silica gel column chromatography (50 g silica cartridge, 0-10% ethyl acetate/hexanes)

ORD record

ord-023875d8be624d60aeac5208fed2611d

Source dataset

uspto-grants-2015_08

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US09102703B2