Research Article

On the Reactivity of N-tert-Butyl-1,2-Diaminoethane: Synthesis of 1-tert-Butyl-2-Imidazoline, Formation of an Intramolecular Carbamate Salt from the Reaction with , and Generation of a Hydroxyalkyl-Substituted Imidazolinium Salt

Table 1

Crystallographic data for 1 and 3.

13

Empirical formulaC7H16N2O2C11H23ClN2O
Formula weight160.22234.76
T/K100100
Crystal systemmonoclinictetragonal
Space groupP21/nI-4
a/Å8.3778(12)14.6891(14)
b/Å9.2202(12)14.6891(14)
c/Å11.8067(18)13.2031(14)
α9090
β104.385(8)90
γ9090
Volume/Å3883.4(2)2848.8(6)
Z48
g/cm31.2051.095
μ/mm−10.0880.250
F(000)352.01024.0
Crystal size/mm30.65 × 0.6 × 0.150.3 × 0.2 × 0.2
RadiationMoKα (λ = 0.71073)MoKα (λ = 0.71073)
2Θ range for data collection/°5.386 to 60.2665.546 to 56.668
Index ranges
-11 ≤ h ≤ 11, -13 ≤ k ≤ 12, -16 ≤ l ≤ 16-16 ≤ h ≤ 19, -19 ≤ k ≤ 19, -17 ≤ l ≤ 16
Reflections collected186298173
Independent reflections
2583 [, ]3525 [, ]
Data/restraints/parameters2583/0/1123525/0/144
Goodness-of-fit on F21.0491.030
Final R indexes [I>=2σ (I)]R1 = 0.0351, wR2 = 0.0891R1 = 0.0382, wR2 = 0.0840
Final R indexes [all data]R1 = 0.0426, wR2 = 0.0935R1 = 0.0454, wR2 = 0.0880
Largest diff. peak/hole (e Å−3)0.40/-0.200.45/-0.21
Flack parameterN/A0.48(3)