PLE catalyzed enantiomeric separation of (+/-)-2-furylcarbinols

1997-01-01
Tanyeli, Cihangir
Arkin, Ali Hakan
Akhmedov, Idris Mecidoğlu
O-Acetyl derivatives of (+/-)-2-furylcarbinols were resolved by PLE catalyzed hydrolysis to afford optically active 2-furylcarbinols in up to 98% e.e. that are valuable chiral building blocks in the synthesis of various biologically active compounds. Enantiomeric excess values were determined by using H-1-NMR and GC analysis of (S)-O-acetyllactyl ester derivatives of 2-furylcarbinols. They were also correlated with the Literature values.
ENANTIOMER

Suggestions

PLE catalysed enantiomeric separation of various (+/-)-6-acetoxy-alpha,beta-unsaturated cyclic ketones
Tanyeli, Cihangir; Dikici, E; Fleischhauer, J; Repges, C; Wang, YK; Gawronski, J; Kacprzak, K (2001-01-01)
Various (+/-)-6-acetoxy-alpha,beta -unsaturated cyclic ketones were resolved by PLE catalysed hydrolysis to afford enantiomerically enriched 6-hydroxy derivatives with 85-98% e.e. The absolute configuration of 6-hydroxy-alpha,beta -unsaturated cyclic ketones were determined via CD measurements.
PLE and HLE catalyzed reverse enantiomeric separation of (±)-methyl-2- methoxy-1-methyl-2,5-cyclohexadiene-1-carboxylate derivatives
Tanyeli, Cihangir; Demir, Ayhan Sıtkı; ALVES, Rosemeire Brondi; ARSENİYADİS, Simeon (1999-03-26)
We describe the diversities of hydrolase-type enzymes PLE and HLE on the hydrolysis of (+/-)-methyl-2-methoxy-1 -methyl-2,5-cyclohexadiene-1-carboxylate and (+/-)-methyl-2-methoxy-1 -methyl-2,5-cyclohexadiene-4-one-1-carboxylate to afford both enantiomers with 92-96% ee.
CCL- and PLE-catalyzed reverse enantiomeric separation of various (+/-)-2-thienylcarbinols
Tanyeli, Cihangir; Ozdemirhan, D (2001-01-01)
(+/-)-2-Thienylcarbinols and their O-acetyl derivatives were resolved in reverse separation by CCL and PLE catalysed hydrolysis to afford optically active 2-thienylcarbinols in 35%-99% e.e. that are valuable chiral building blocks, in particular in the synthesis of pheromones and some alkoloid type natural products. Absolute configurations were determined by the correlation of specific rotation values with the literature and by transforming into the corresponding secondary alcohols via reductive desulfuriza...
PFAM catalyzed enantioselective diethylzinc addition to imines
Doğan, Özdemir (2015-01-01)
Chiral amines are important starting materials for the synthesis of biologically important compounds. Enantioselective addition of dialkylzinc reagents to imines is a reliable method for the synthesis of these compounds. Different chiral catalysts were developed and used for this method. Phosphorous based PFAM catalysts were tried for the first time in the enantioselective synthesis of amines by reacting diethylzinc with N-sulfonyl imines and N-diphenylphosphinoyl imines. Chiral amines were isolated with mo...
Heteropolyacid Incorporated Bifunctional Core-Shell Catalysts for Dimethyl Ether Synthesis from Carbon Dioxide/Syngas
PEKMEZCİ KARAMAN, BİRCE; OKTAR, NURAY; Doğu, Timur (2022-10-01)
Core-shell-type catalysts, which are synthesized by encapsulating the Cu-ZnO-Alumina type methanol synthesis catalyst (CZA) by silicotungstic acid (STA)-incorporated mesoporous alumina, were prepared following a hydrothermal route and tested in DME synthesis from syngas and CO2. Activity tests, which were performed in the pressure range of 30-50 bar, and the temperature range of 200-300 degrees C, with different feed compositions (CO2/CO/H-2: 50/-/50, 40/10/50, 25/25/50, 10/40/50) showed that the best-opera...
Citation Formats
C. Tanyeli, A. H. Arkin, and I. M. Akhmedov, “PLE catalyzed enantiomeric separation of (+/-)-2-furylcarbinols,” ENANTIOMER, pp. 433–439, 1997, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/55683.