Azidotrimethylsilane-mediated Schmidt rearrangement of 2-aryl-1,2,3,4-tetrahydro-1-methylsulfonyl-4-quinolones: non-regioselectivity of carbon migration
Mj. Mphahlele, Azidotrimethylsilane-mediated Schmidt rearrangement of 2-aryl-1,2,3,4-tetrahydro-1-methylsulfonyl-4-quinolones: non-regioselectivity of carbon migration, J CHEM S P1, (23), 1999, pp. 3477-3482
Azidotrimethylsilane-mediated Schmidt rearrangement of 2-aryl-1-methylsulfo
nyl-1,2,3,4-tetrahydro-4-quinolones in trifluoroacetic acid was investigate
d. In contrast to the corresponding 2-aryl-1,2,3,4-tetrahydro-4-quinolone p
recursors, the N-methylsulfonyl derivatives displayed non-regioselectivity
of carbon migration during nitrogen insertion affording the isomeric ring-e
xpanded derivatives via alkyl and aryl migration.