I. Badea et al., CERIC AMMONIUM-NITRATE IN ORGANIC-SYNTHESIS .3. A FACILE SYNTHESIS OFMETHOXYLATED 3,4-DIHYDROISOQUINOLINIUM NITRATES, Synthetic communications, 25(17), 1995, pp. 2591-2598
A mild and efficient method for the synthesis of 3,4-dihydroisoquinoli
nium salts, key intermediates for the preparation of isoquinoline alka
loids, by an oxidation of N-methyl-1,2,3,4-tetrahydroisoquinolines usi
ng ceric ammonium nitrate (CAN) is described.