Boron tribromide → HCID 68679177, compound

Participants

Reaction Steps

Diastereomer A: Analogously to Example 2, the corresponding imine is produced starting from 1.0 g of 4-(2-methoxyphenyl)-2-hydroxy-4-methyl-2-(trifluoromethyl)-pentanal and 553 mg of 5-aminoquinolin-2(1H)-one. 21 mg of 5-{[4,4-dimethyl-2-hydroxy-5-methoxy-2-trifluoromethyl-1,2,3,4-tetrahydronaphthalen-1-yl]amino}-quinolin-2(1H)-one as fraction 1 and 5 mg of 5-{[2,5-dihydroxy-4,4-dimethyl-2-trifluoromethyl-1,2,3,4-tetrahydronaphthalen-1-yl]amino}-quinolin-2(1H)-one as fraction 2 are obtained by reaction of 50 mg of the imine with 0.22 ml of BBr3 (1N in dichloromethane).

Provenance & Evidence