Enantioselective Synthesis of Quinolizidines and Indolizidines via a Catalytic Asymmetric Hydrogenation Cascade
作者:Magnus Rueping、Lukas Hubener
DOI:10.1055/s-0030-1259955
日期:2011.6
A catalyticenantioselective synthesis of a new class of quinolizidines and indolizidines is presented. An asymmetric Bron-sted acid catalyzed hydrogenation cascade as well as a sequential Bronsted acid/metal catalyzed hydrogenation protocol of 2-substituted quinolines yields benzofused quinolizidines and indolizidines in good yields with high diastereo- and enantioselectivities.
Efficient Asymmetric Hydrogenation of Quinolines over Chiral Porous Polymers Integrated with Substrate Activation Sites
作者:Lin Tao、Yiqi Ren、Chunzhi Li、He Li、Xuelian Chen、Lina Liu、Qihua Yang
DOI:10.1021/acscatal.9b04838
日期:2020.2.7
solid catalysts for asymmetrichydrogenation of quinoline derivatives ever reported. Furthermore, the bifunctional porous polymers realized the asymmetric cascade hydrogenation/reductive amination reaction to obtain benzo-quinolizidines. Our primary results suggest that the incorporation of substrate activation sites near chiral centers is an efficient strategy for the synthesis of high-performance
Nikishin, G. I.; Sokova, L. L.; Kapustina, N. I., Doklady Chemistry, 1992, vol. 326, # 1.3, p. 205 - 207
作者:Nikishin, G. I.、Sokova, L. L.、Kapustina, N. I.
DOI:——
日期:——
Homolytic oxoalkylation of protonatedN-heteroaromatic compounds
作者:N. I. Kapustina、L. L. Sokova、A. V. Ignatenko、G. I. Nikishin
DOI:10.1007/bf00698999
日期:1993.11
The oxoalkylation of pyridine, 2-methyl-, 4-methyl-, 2,4-dimethyl-, 2,6-dimethyl-pyridines, quinoline, 4-methylquinoline, isoquinoline, and pyrazine with oxoalkyl radicals generated from 1-methylcyclobutanol or 1-methylcyclopentanol under the action of Pb(OAc)4 or Mn(OAc)3 has been carried out. The reaction products are isomers with 2-(6)- and 4-positions of the oxoalkyl group in the N-heteroaromatic ring. The isomer ratios have been determined as a function of the structure of the N-heteroaromatic compound and the reaction conditions.
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作者:G. I. Nikishin、L. L. Sokova、N. I. Kapustina
DOI:10.1023/a:1021388015441
日期:——
A new procedure was developed for the introduction of the oxoalkyl fragment into N-heteroaromatic compounds of the pyridine and quinoline series. The procedure is based on the solid-phase reactions of lead tetraacetate with aromatic N-heterocycles and tertiary cycloalkanols.