629-36-7Relevant articles and documents
X-ray crystal structure of tris(11-crown-3)triphenylene
Buchanan, Gerald W.,Azad, Mastaneh,Yap, Glenn P. A.
, p. 145 - 151 (2001)
Benzo-11-crown-3 ether trimerizes in the presence of FeCl3 and aqueous H2SO4 to produce tris(11-crown-3)triphenylene. This compound crystallizes, along with a molecule of diethyl ether and CH2Cl2 in the triclinic P1? space group; a = 8.8913(9) ?, b = 13.5790(14) ?, c = 17.5244(17) ?, β = 91.026(2)°, with Z = 2. Two of the three 11-crown-3 ether units of the trimer possess essentially identical geometries, while the third has a significantly different conformation. These stereochemical results are compared to those calculated for benzo-11-crown-3 in the gas phase.
NONAQUEOUS SOLUTION OF HYPOCHLOROUS ACID AND CHLOROHYDRINATION REACTIONS OF CERTAIN LOWER ALKENES.
Bikbulatov,Valitov,Gromova,Stepanova,Martynova
, p. 2314 - 2317 (2007/10/02)
A study was made of the problems of preparing stable, highly concentrated nonaqueous solutions of hypochlorous acid and carrying out chlorohydrination reactions in them. The results on the chlorohydrination of alpha -alkenes showed that, in principle, it is possible and advisable to use solutions of hypochlorous acid in organic solvents, in particular, aliphatic and alicyclic ketones, ethyl acetate and tributyl phosphate. The use of organic solvents noticeably improves the stability of HOCl, so that the working concentrations of the acid can be increased, and the chlorohydrination reaction products can be more easily isolated.