In 2018,Fang, Xiangqing; Xu, Jiajia; Qi, Wu; Yang, Liguo; Ya, Li published 《Crystal structure of catena-poly[(μ2-dicyanamido-κ2N:N’)-(μ2-2-(pyridin-2-yl)ethan-1-olato-κ3N,O:O’)copper(II)], C9H8CuN4O》.Zeitschrift fuer Kristallographie – New Crystal Structures published the findings.Formula: C7H9NO The information in the text is summarized as follows:
C9H8CuN4O, triclinic, P1̅ (number 2), a = 7.6740(6) Å, b = 8.6401(8) Å, c = 8.8869(9) Å, α = 109.201(2)°, β = 106.629(1)°, γ = 105.410(1)°, V = 489.21(8) Å3, Z = 2, Rgt(F) = 0.0406, wRref(F2) = 0.0993, T = 298(2) K. After reading the article, we found that the author used 2-(2-Hydroxyethyl)pyridine(cas: 103-74-2Formula: C7H9NO)
2-(2-Hydroxyethyl)pyridine(cas: 103-74-2) belongs to pyridine. Pyridine is very deactivated towards electrophilic substitution with respect to benzene. For this reason classical formylation, using methods such as the Gattermann or Vilsmeier reactions, are not generally successful. Formula: C7H9NO