4721-98-6, Name is 6,7-Dimethoxy-1-methyl-3,4-dihydroisoquinoline, belongs to isoquinoline compound, is a common compound. Product Details of 4721-98-6In an article, once mentioned the new application about 4721-98-6.
Exclusive 1,6-cyclization occurred to afford isoquinoline frameworks when the enamide and the enamine substrates bearing exo-olefin moiety were treated with tri-n-butyltin hydride in the presence of radical initiator (9a, b ? 12a, b; 13a, b ? 18a, b), respectively. On the other hand, competitive 1,6- and 1,5-cyclization occurred to give a mixture of isoquinolone and isoindolone frameworks when the enamide substrates bearing endo-olefin moiety were treated under the same conditions (22a, b ? 26a, b and 27a, b).
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Reference：
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem