A facile total synthesis of 6-pentyl-α-pyrone 1 has been described.The key step is the treatment of 2-furyl-pentyl-csrbinol 3 with NBS in aqueous tetrahydrofuran(THF).The overall yield is 34%.
used-silical capillary columns containing heptakis(2、3、6-tri-o-pentyl)-β-cyclodextrinand dibenzo-18-crown-6 were prepared.By studying the selectivity of mixed stationary phases forsome solute pairs.as well a...used-silical capillary columns containing heptakis(2、3、6-tri-o-pentyl)-β-cyclodextrinand dibenzo-18-crown-6 were prepared.By studying the selectivity of mixed stationary phases forsome solute pairs.as well as comparing with the heptakis(2.3、6-tri-O-pentyl)-β-cyclodextrin and thedibenzo-18-crown-6 used as individual stationary phase、the synergistic effects were observed.These effects were affected by the column temperature.mixed ratio and linear velocity of carrier gas.展开更多
6-Pentyl-α-pyrone (6PP), a natural product with a number of bioactivies, has been synthesized from furfural in a five steps route. The key step is the epoxidation of 2-furyl-pentylcarbinol (3) with NBS in a mixed sol...6-Pentyl-α-pyrone (6PP), a natural product with a number of bioactivies, has been synthesized from furfural in a five steps route. The key step is the epoxidation of 2-furyl-pentylcarbinol (3) with NBS in a mixed solvent system THF and H2O(4: 1). The overall yield is 34%.展开更多
文摘A facile total synthesis of 6-pentyl-α-pyrone 1 has been described.The key step is the treatment of 2-furyl-pentyl-csrbinol 3 with NBS in aqueous tetrahydrofuran(THF).The overall yield is 34%.
文摘used-silical capillary columns containing heptakis(2、3、6-tri-o-pentyl)-β-cyclodextrinand dibenzo-18-crown-6 were prepared.By studying the selectivity of mixed stationary phases forsome solute pairs.as well as comparing with the heptakis(2.3、6-tri-O-pentyl)-β-cyclodextrin and thedibenzo-18-crown-6 used as individual stationary phase、the synergistic effects were observed.These effects were affected by the column temperature.mixed ratio and linear velocity of carrier gas.
文摘6-Pentyl-α-pyrone (6PP), a natural product with a number of bioactivies, has been synthesized from furfural in a five steps route. The key step is the epoxidation of 2-furyl-pentylcarbinol (3) with NBS in a mixed solvent system THF and H2O(4: 1). The overall yield is 34%.