Trityl chloride → HCID 86610956, compound

Participants

Reaction Steps

1.70 g of methyl 2-amino-4-methoxy-picolinic acid (compound C6) are dissolved in 44 ml of dichloromethane. Subsequently, 1.92 ml of diisopropylethylamine, 690 mg of tetrabutylammonium iodide, and 3.12 g of trityl chloride are added. The solution is stirred for 48 h at room temperature. Thereafter, the mixture is extracted three times each with 50 ml of sat sodium hydrogencarbonate solution. The organic layer is dried using sodium sulphate, filtered with suction and concentrated in vacuum. The crude product (5.38 g) is purified by chromatography (eluent: toluene/ethyl acetate 5:1) to afford 3.49 g of the title compound as a colorless oil. TSP-MS: 425.2 [MH+]. TLC: Rf=0.37 (toluene/ethyl acetate 5:1).

Provenance & Evidence