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Search for "boron trifluoride etherate" in Full Text gives 32 result(s) in Beilstein Journal of Organic Chemistry.
CAAC Boranes. Synthesis and characterization of cyclic (alkyl) (amino) carbene borane complexes from BF3 and BH3
Beilstein J. Org. Chem. 2010, 6, 709–712, doi:10.3762/bjoc.6.82
- dichloride salt 1a with NaHMDS in THF at −78 °C, followed by warming to room temperature gave a pale yellow solution of the free carbene 2a [20]. A broad resonance at −312 ppm in the 13C NMR spectrum of this solution indicated that 2a had formed. Boron trifluoride etherate (BF3•Et2O) was then added at −78 °C
New amphiphilic glycopolymers by click functionalization of random copolymers – application to the colloidal stabilisation of polymer nanoparticles and their interaction with concanavalin A lectin
Beilstein J. Org. Chem. 2010, 6, No. 58, doi:10.3762/bjoc.6.58
- best result was obtained with commercially available triethylene glycol monochloride. Thus, peracetylated mannose 1 was reacted with triethyleneglycol monochloride, in the presence of boron trifluoride etherate to afford glycoside 2 [12] in 50–55% yield. After purification, the latter was converted to
Acid catalyzed cyclodimerization of 2,2-bis(trifluoromethyl)-4-alkoxy-oxetanes and -thietanes. Synthesis of 2,2,6,6-tetrakis(trifluoromethyl)-4,8-dialkoxy-1,5-dioxocanes and 3,3,7,7-tetrakis(trifluoromethyl)-9-oxa-2,6-dithia-bicyclo[3.3.1]nonane
Beilstein J. Org. Chem. 2010, 6, No. 46, doi:10.3762/bjoc.6.46
- different reaction course. The addition of boron trifluoride etherate catalyst to a solution of the oxetane in dichloromethane resulted in a spontaneous and mildly exothermic reaction. A very interesting feature of this process is the appearance of highly intensive blue or blue-green colour upon the
A review of new developments in the Friedel–Crafts alkylation – From green chemistry to asymmetric catalysis
Beilstein J. Org. Chem. 2010, 6, No. 6, doi:10.3762/bjoc.6.6
- reactivity. One example utilizing the propargyl trichloracetimidates 105 was described recently by Wang and co-workers. With 30 mol% of boron trifluoride etherate, the highly desired 1,3-diarylpropynes 106 were obtained in good yields. The reaction was over within 5 min and various arenes and heteroarenes
Palladium- catalyzed cross coupling reactions of 4-bromo- 6H-1,2-oxazines
Beilstein J. Org. Chem. 2009, 5, No. 44, doi:10.3762/bjoc.5.44
- treatment of 9c with boron trifluoride etherate in the presence of an excess of 1-hexyne via an azapyrylium intermediate [34][35]. Additional investigations are required to optimize the preparation diynes of type 11. Conversion of the new functionalized 6H-1,2-oxazines to highly substituted pyridine
Diels- Alder reactions using 4,7-dioxygenated indanones as dienophiles for regioselective construction of oxygenated 2,3-dihydrobenz[f]indenone skeleton
Beilstein J. Org. Chem. 2008, 4, No. 15, doi:10.3762/bjoc.4.15
- 2). An increase in the amount of ZnCl2 led to the formation of a complex mixture containing a small amount of propellane 22 (entry 3). Next, instead of ZnCl2, which is only slightly soluble in CH2Cl2, boron trifluoride etherate (BF3 · OEt2) was applied as a soluble Lewis acid; however, similar
Methods for the synthesis of polyhydroxylated piperidines by diastereoselective dihydroxylation: Exploitation in the two-directional synthesis of aza-C-linked disaccharide derivatives
Beilstein J. Org. Chem. 2005, 1, No. 2, doi:10.1186/1860-5397-1-2
- .) For the syntheses of the allylated and reduced substrates, the crude products were treated directly with boron trifluoride etherate and either allyltrimethylsilane or triethylsilane. It was possible to switch cleanly to a one-directional synthesis because the N,O acetals were much more susceptible to
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