boron trifluoride
3.Study on Synthesis of α,β－Unsatura Ted Carboxylic Acid Hydroxyethyl Ester by Boron Trifluoride Ethyl Ether and Catalytic Promoter System
4.The method employs deriva-tization of the acids to their esters using boron trifluoride -methanol,seperated by 5%DEGS +1%H 3 PO 4 column.
5.High quality poly(9,9-diethylfluorene)(PDEF) films with electrical conductivity of 2×10~(-2)S·cm~(-1) were synthesized electrochemically by direct anodic oxidation of 9,9-diethylfluorene(DEF) in boron trifluoride diethyl etherate(BFEE).
6.On the basis of introducing the principles of separating boron10 isotope by chemical exchange distillation, the problem in largescale boron10 production is discussed. Several new donors, including nitromethane, acetone, methyl isobutyl ketone (MIBK) and diisobutyl ketone (DIBK), which have a larger separation factor if used in separation are introduced. The com plexes between these new donors and boron trifluoride (BF 3) are more stable than the donors examined before.
