Chiral superbases: the proton affinities of 1- and 2-aza[6]helicene in the gas phase.
The proton affinities (PAs) of 1- and 2-azahelicene were determined using various mass spectrometric techniques and complementary results from density functional theory. With PAs of about 1000 kJ mol(-1), the helical backbone of both compounds offer promising perspectives for future research on enantioselective reactions of these helical nitrogen bases.
Roithová
Jana
J
Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo Námestí 2, 16610, Praha 6, Czech Republic.
Schröder
Detlef
D
Mísek
Jirí
J
Stará
Irena G
IG
Starý
Ivo
I