68858-27-5Relevant academic research and scientific papers
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.
A NEW SYNTHESIS OF 7,12-DIHYDRO-12-PHENYL-5H-6,12-METHANODIBENZAZOCINES VIA N-BENZYL-1,2,3,4-TETRAHYDRO-4-PHENYLISOQUINOLIN-4-OLS
Kihara, Masaru,Kashimoto, Minoru,Kobayashi, Yoshimaro,Nagao, Yoshimitsu
, p. 747 - 756 (2007/10/02)
7,12-Dihydro-12-phenyl-5H-6,12-methanodibenzazocine derivatives were prepared from N-benzyl-1,2,3,4-tetrahydro-4-phenylisoquinolin-4-ols by an intramolecular Friedel-Crafts reaction.
ACID-CATALYZED DOUBLE-CYCLIZATION REACTIONS OF N,N-DIBENZYLAMINO-ACETALDEHYDE DIALKYL ACETALS AND RELATED COMPOUNDS: GENERAL SYNTHESIS OF 7,12-DIHYDRO-5H-6,12-METHANODIBENZAZOCINES AND RELATED COMPOUNDS
Suzuki, Takayoshi,Takamoto, Masayuki,Okamoto, Toshihiko,Takayama, Hiroaki
, p. 1888 - 1900 (2007/10/02)
A number of N,N-dibenzylaminoacetaldehyde dialkyl acetals (1) double-cyclized in 70percent perchloric acid or triflic acid (trifluoromethanesulfonic acid) to give good yields of 7,12-dihydro-5H-6,12-methanodibenzazocines (2) even when a powerful elec
