p-Toluenesulfonic acid → HCID 178442763、化合物

関与物質

反応手順

Step ii) In a 30 ml-round-bottomed flask, 0.60 g (1.19 mM) of 2-(trans-4-pentylcyclohexylcarbonylamino)-4-(4decylphenyl)phenol, 0.07 g (0.37 mM) of p-toluenesulfonic acid and 10 ml of o-dichlorobenzene were placed, followed by stirring for 40 min. at 188°-192° C. After the reaction, o-dichlorobenzene was distilled-off under reduced pressure. The residue was purified by silica gel column chromatography (eluent: toluene) to obtain 0.28 g of 2-(trans-4-pentylcyclohexyl)-5-(4-decylphenyl)benzoxazole (yield: 48.4%). ##STR100##

情報源と証拠