Toluene → HCID 23113966, compound

Participants

Reaction Steps

To a solution of 2-(2-hydroxy-1-(4-isopropylphenyl)ethyl)-3,5,6-trimethylphenol obtained in Reference Example 8 (7.85 g, 26.3 mmol) and triphenylphosphine (7.58 g, 28.9 mmol) in THF (60 mL) was added diethyl azodicarboxylate (a 40% toluene solution, 12.6 g, 28.9 mmol) with ice-cooling, and the mixture was stirred at room temperature for 1 hour. The solvent was concentrated under reduced pressure to obtain the residue, which was purified by silica gel column chromatography (hexane:ethyl acetate=10:1) to obtain 5.70 g (yield 84%) of the title compound. Melting point: 48-49° C. (methanol).

Provenance & Evidence