Dichloromethane ethylacetate → HCID 135445666, compound

Participants

Reaction Steps

As described for 5, a solution of 14 (30 mg, 44 μmol) in CH2Cl2 (5.0 mL) was treated with TFA/water (2.0 mL, 1:1) with stirring at room temperature for 3 days. Standard workup including chromatography (silica, CH2Cl2/ethyl acetate) gave a purple green solid (18.7 mg, 83%): IR (neat) 1673, 1550, 1120 cm−1; 1H NMR δ −2.30 (s, 2H), 7.80-7.82 (m, 6H), 8.17-8.19 (m, 4H), 8.59 (d, J=4.8 Hz, 4H), 10.02 (s, 4H), 12.55 (s, 2H); LD-MS obsd 518.90, calcd 518.1743 (C34H22N4O2); λabs 428, 538, 584, 622, 684 nm.

Provenance & Evidence