Morpholine → 6-Cyano-1-(5-isothiazolyl)-3,4-dihydronaphthalene

Participants

Reaction Steps

Analogously to Example 13, 92 mg of 6-cyano-1-hydroxy-1-(5-isothiazolyl)-1,2,3,4-tetrahydronaphthalene (Example 15) and 0.051 ml of thionyl chloride in 0.32 of benzene, with the subsequent addition of 0.112 ml of morpholine, are converted into the crude title compound, which is purified by column chromatography (SiO2, 0.1 bar, hexane/ethyl acetate 4:1) and crystallisation from hexane; m.p. 77°-81°; 1H-NMR (CECl3): δ(ppm)=2.5 (m,2H), 2.92 (t,2H), 6.54 (t,2H), 7.2 (d,1H), 7.29 (d,1H), 7.5 (dd,1H), 7.55 (d,1H), 8.5 (d,1H).

Provenance & Evidence