Search results
Search for "halogens" in Full Text gives 129 result(s) in Beilstein Journal of Organic Chemistry.
The subtle balance of weak supramolecular interactions: The hierarchy of halogen and hydrogen bonds in haloanilinium and halopyridinium salts
Beilstein J. Org. Chem. 2010, 6, No. 4, doi:10.3762/bjoc.6.4
- due to electrostatic effects, but polarization, charge-transfer, and dispersion contributions all play an important role, more recently confirmed also by theoretical and experimental studies [8][9][10]. Interactions between halogens and nucleophilic atoms were generally considered to be too weak to be
Solvent-free phase-vanishing reactions with PTFE (Teflon®) as a phase screen
Beilstein J. Org. Chem. 2009, 5, No. 75, doi:10.3762/bjoc.5.75
- and either acrylic acid or dimethyl fumarate react at a relatively high rate [26]. As most Diels-Alder reactions are relatively slow, and most dienes are highly reactive towards halogens, it may be necessary to carry out sequential reactions. Solvent-free PV-PTFE reaction design is simple and
Chemoselective reduction of aldehydes by ruthenium trichloride and resin- bound formates
Beilstein J. Org. Chem. 2008, 4, No. 53, doi:10.3762/bjoc.4.53
- such as halogens, nitro etc. were not affected under the reaction conditions (Table 2, entries 6–11, 17). Aliphatic aldehydes (Table 2, entries 14, 15) were also reduced to corresponding alcohols efficiently. Furthermore, the presence of ortho-substituents did not hinder the rate of the reduction as
Trifluoromethyl ethers – synthesis and properties of an unusual substituent
Beilstein J. Org. Chem. 2008, 4, No. 13, doi:10.3762/bjoc.4.13
- in water more than in organic solvents (such as 1-octanol or chloroform) and hence lowers the lipophilicity [51]. It appears that the OCF3 substituent is far more lipophilic (π = +1.04) than the halogens and lies between a CF3 (π = +0.88) and a SCF3 (π = +1.44) group. It may thus replace
Other Beilstein-Institut Open Science Activities
