Triethylamine → 4-(1,3-Dihydroisoindol-2-yl)-6-iodoquinazoline

Participants

Reaction Steps

0.50 g of 4-chloro-6-iodoquinazoline, 0.27 g of 2,3-dihydro-1H-isoindole, 0.42 ml of triethylamine in 4 ml of dioxane are heated at 80° C. in a flask until the quinazoline has reacted virtually completely (HPLC check, about 3 hours). The cooled reaction solution is evaporated to dryness in a rotary evaporator. The residue is suspended in EA. The undissolved solid is filtered off, rinsed with water and dried, giving 0.56 g of 4-(1,3-dihydroisoindol-2-yl)-6-iodoquinazoline as slightly yellowish solid (yield 93%, content 94%); MS-FAB (M+H+)=373.8; Rf (polar method): 1.73 min. This is employed for the next step without further purification.

Provenance & Evidence