Réaction #74860

Équation de réaction

methyl trifluoromethanesulfonate

pyridinone

3-(3-bromophenyl)-1-methyl-5-phenyl-4(1H)-pyridinone

2-propanone

→

3-(3-bromophenyl)-4-methoxy-1-methyl-5-phenylpyridinium trifluoromethanesulfonate

Solvants

chloroform

Conditions de réaction

Traitement

1. 1
   Autrethe volatile portions were then evaporated under vacuum

Mode opératoire

A 10 g. portion of 3-(3-bromophenyl)-1-methyl-5-phenyl-4(1H)-pyridinone was made from 22 g. of the corresponding 2-propanone as described in Example 1. A 3.4 g. portion of the intermediate pyridinone was dissolved in chloroform and 1.8 g. of methyl trifluoromethanesulfonate was added. The reaction mixture was allowed to stand overnight, and the volatile portions were then evaporated under vacuum. The residue was identified as 3-(3-bromophenyl)-4-methoxy-1-methyl-5-phenylpyridinium trifluoromethanesulfonate, molecular weight 339 by mass spectroscopy.

Source