128349-14-4Relevant articles and documents
One-pot synthesis and hydroxylaminolysis of asymmetrical acyclic nitrones
Coskun, Necdet,Parlar, Aydin
, p. 2445 - 2451 (2007/10/03)
Aromatic aldehydes 1 were reductively aminated to the corresponding secondary amines 2 using NaBH4 in methanol in good yields. Amines 2 were oxidized with H2O2-WO42- regioselectively to nitrones 3, the structures of which were easily determined by reacting them with hydroxylamine hydrochloride as well as by spectral means. The products of hydroxylaminolysis in ether proved to be the corresponding benzaldehyde oximes 4 and benzyl or methyl hydroxylamine hydrochlorides 5. Copyright Taylor & Francis, Inc.
Synthesis of 7,12-dihydro-12-phenyl-5H-6,12-methanodibenz[cf]azocines via N,N-dibenzylphenacylamines
Coskun, Necdet,Bueyuekuysal, Levent
, p. 53 - 59 (2007/10/03)
N,N-DibenzyIphenacylamines (1) were prepared in high yields by a onepot reaction and cyclized at room temperature to give 7,12-dihydro-12-phenyl-5H-6,12-methanodibenz[cf]azocines in high yields. 95% H2SO4 or 70% HClO4 was used as cyclization catalysts. The double-cyclization proceeds smoothly in the cases where electron-donating groups are present in both benzene ring. N-2,3-dimethoxybenzyl-N-benzylphenacylamine (If) gave the corresponding N-benzyl-1,2-dihydro-4-phenylisoquinoline on treatment with 95% H2SO4 while N-3,4-Dimethoxybenzyl-N-benzylphenacylamine (1a) at the same reaction conditions and reaction time cyclized to the corresponding dibenzazocine. However la gave the corresponding dihydroisoquinoline which disproportionates to give N-benzyl-1,2,3,4-tetrahydro-4-phenylisoquinoline and N-benzyl-4-phenylisoquinolinium when treated with 70% perchloric acid at room temperature.
