Solvent effects on the relative energies of carbonium ions. Solvation and internal rotation for the allyl cation in liquid hydrogen fluoride

1984 ◽  
Vol 106 (18) ◽  
pp. 5104-5112 ◽  
Author(s):  
Michael E. Cournoyer ◽  
William L. Jorgensen
Keyword(s):  
Internal Rotation ◽  
Hydrogen Fluoride ◽  
Solvent Effects ◽  
Liquid Hydrogen ◽  
Allyl Cation ◽  
Carbonium Ions

Synthesis of oxytocin, arginine-vasopressin and its deamino-analogue using 2,4,6-trimethylbenzyl group for protection of the cysteine sulfur

1981 ◽  
Vol 46 (1) ◽  
pp. 286-299 ◽  
Author(s):  
František Brtník ◽  
Milan Krojidlo ◽  
Tomislav Barth ◽  
Karel Jošt
Keyword(s):  
Peptide Synthesis ◽  
Hydrogen Fluoride ◽  
Sulfur Atom ◽  
Arginine Vasopressin ◽  
Liquid Hydrogen ◽  
Trifluoromethanesulfonic Acid ◽  
Protecting Groups ◽  
Mild Conditions

Preparation of oxytocin, arginine-vasopressin and its deamino-analogue serves as an example of use of 2,4,6-trimethylbenzyl group for protection of the cysteine sulfur atom in the peptide synthesis. This modified benzyl group is sufficiently stable under conditions of solvolytic removal of common amino-protecting groups and it can be cleaved off under mild conditions with liquid hydrogen fluoride or trifluoromethanesulfonic acid.

Reactions of C-terminal ω-amino acid residues in liquid hydrogen fluoride

2009 ◽  
Vol 42 (1) ◽  
pp. 10-13 ◽  
Author(s):  
MARIA A. BEDNAREK ◽  
JAMES P. SPRINGER ◽  
BARRY R. CUNNINGHAM ◽  
AMY M. BERNICK ◽  
MIKLOS BODANSZKY
Keyword(s):  
Amino Acid ◽  
Hydrogen Fluoride ◽  
Liquid Hydrogen ◽  
Amino Acid Residues

ChemInform Abstract: REGIO- AND STEREOSPECIFIC HALOGENATION OF HALOALKENES IN LIQUID HYDROGEN FLUORIDE

1979 ◽  
Vol 10 (7) ◽  
Author(s):  
L. S. BOGUSLAVSKAYA ◽  
N. B. MELNIKOVA ◽  
A. P. VORONIN ◽  
V. R. KARTASHOV
Keyword(s):  
Hydrogen Fluoride ◽  
Liquid Hydrogen

scholarly journals Velocity correlations in liquid hydrogen fluoride

1999 ◽  
Vol 111 (10) ◽  
pp. 4663-4671 ◽  
Author(s):  
U. Balucani ◽  
D. Bertolini ◽  
G. Sutmann ◽  
A. Tani ◽  
R. Vallauri
Keyword(s):  
Hydrogen Fluoride ◽  
Liquid Hydrogen

Barrier to internal rotation in amides. IV. N,N-Dimethylamides. Substituent and solvent effects

1972 ◽  
Vol 76 (15) ◽  
pp. 2178-2183 ◽  
Author(s):  
Torbjorn Drakenberg ◽  
Kjell Ivar Dahlqvist ◽  
Sture Forsen
Keyword(s):  
Internal Rotation ◽  
Solvent Effects
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