Enantioselective Reduction of meso-Cyclic-1,2-dicarboxylic Anhydrides and 1,2-Dicarboximides: Asymmetric Synthesis of Bicyclic Lactones and Hydroxylactams.
Bicyclic 5-hydroxy-2-pyrrolidinones (2a - f) were synthesized with high enantioselectivity by the reduction of meso underbar-cyclic- 1,2-dicarboximides (1a - f) with lithium aluminum hydride (LiAlH4)- methanol (MeOH)- 1,1'-bi-2-naphthol complex (BINAL-H). Treatment of 2a - f with triethylsilane (Et3SiH) and trifluoroacetic acid(CF3CO2H) gave optically active 2-pyrrolidinones (3a - f) in quantitative yields. For the absolute configuration correlation, 2a - d were converted into known lactones (4a - d).
SALAXOV, M. S.;ZULFALIEV, SH. R.;MUSAEVA, N. F., XIMIYA GETEROTSIKL. SOED.,(1990) N1, S. 1524-1527
作者:SALAXOV, M. S.、ZULFALIEV, SH. R.、MUSAEVA, N. F.
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SALAXOVA, R. S.;MAMEDOV, EH. SH.;GADZHILY, T. M., VINITI 4080-83
作者:SALAXOVA, R. S.、MAMEDOV, EH. SH.、GADZHILY, T. M.
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MUSAEVA, N. F.;SALAXOV, M. S.;NAGIEV, V. A.;PULATOVA, SH. M.;ZULFALIEV, S+, ZH. ORGAN. XIMII, 1984, 20, N 3, 629-633
作者:MUSAEVA, N. F.、SALAXOV, M. S.、NAGIEV, V. A.、PULATOVA, SH. M.、ZULFALIEV, S+
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Total Synthesis of (±)-Kainic Acid: A Photochemical C–H Carbamoylation Approach
A novel photochemical C–H carbamoylation of an octahydroisoindole derivative with PhNCO has allowed the authors to provide a unique access to a highly functionalized proline motif from which totalsynthesis of (±)-kainic acid, a bioactive marine alkaloid, has been accomplished.