Synthesis of 1-[(1,1′-biphenyl)-4-yl]naphthalene from amines obtained by the Stevens rearrangement of N-[3-(naphthalen-1-yl)prop-2-yn-1-yl]-3-phenylprop-2-en-1-aminium bromides
作者:E. O. Chukhajian、L. V. Ayrapetyan、G. A. Panosyan
DOI:10.1007/s11172-022-3528-9
日期:2022.6
A convenient procedure to access 1-[(1,1′-biphenyl)-4-yl]naphthalene by the Stevens rearrangement of the aminium salts bearing simultaneously 3-phenylprop-2-enyl and [3-(α-naphthyl)prop-2-ynyl] moieties was developed. During vacuum distillation, the synthesized compounds underwent the domino reaction to afford 1-[(1,1′-biphenyl)-4-yl]naphthalene. On the first step of this reaction, β-elimination of
通过史蒂文斯重排,同时带有3-苯基丙-2-烯基和[3-(α-萘基)丙-2-炔基]部分的氨基盐,可以方便地合成1-[(1,1′-联苯)-4-基]萘。在真空蒸馏过程中,合成的化合物发生多米诺反应,生成1-[(1,1′-联苯)-4-基]萘。在反应的第一步,仲胺的β-消除反应生成共轭二烯炔;在第二步,二烯炔的电环反应生成环烯丙基中间体;在第三步,烯丙基中间体通过1,3-或1,5-氢位移迅速转化为1-[(1,1′-联苯)-4-基]萘。