Improved Synthesis of Geodken's Macrocycle through the Synthesis of the Dichloride Salt. Niewahner, J H, Walters, K. A, & Wagner, A. Journal of Chemical Education, 84(3):477, March, 2007.
Improved Synthesis of Geodken's Macrocycle through the Synthesis of the Dichloride Salt [link]Paper  doi  abstract   bibtex   
The three-step prepn. of Geodken's macrocycle, H2C22H22N4, tetraazacyclotetradecahexane, in an overall yield of 65% is described. The synthesis of the macrocycle's dichloride salt, H2C22H22N2HCl, improved over previously reported prepns. The procedure results in higher overall yield and one less step than that previously reported. This modification also demonstrates the effect of solvent on the nature of the product isolated from a reaction. [on SciFinder (R)]
@article{Niewahner2007,
abstract = {The three-step prepn. of Geodken's macrocycle, H2C22H22N4, tetraazacyclotetradecahexane, in an overall yield of 65\% is described. The synthesis of the macrocycle's dichloride salt, H2C22H22N2HCl, improved over previously reported prepns. The procedure results in higher overall yield and one less step than that previously reported. This modification also demonstrates the effect of solvent on the nature of the product isolated from a reaction. [on SciFinder (R)]},
annote = {From Duplicate 1 ( },
author = {Niewahner, J H and Walters, Keith A and Wagner, Ashley},
doi = {10.1021/ed084p477},
file = {:C$\backslash$:/Users/walterske/SkyDrive/References/Journal of Chemical Education/2007 - Niewahner, Walters, Wagner - Improved Synthesis of Geodken's Macrocycle through the Synthesis of the Dichloride Salt.pdf:pdf},
isbn = {0021-9584},
issn = {0021-9584},
journal = {Journal of Chemical Education},
keywords = {Chemical education,Coordination Compounds,Geodken's macrocycle synthesis dichloride salt,Hands-On Learning / Manipulatives,Inorganic Chemistry,Laboratory Instruction,Laboratory experiment,Nickel,Organic synthesis,Reactions,Solvent effect (improved synthesis of Geodken's ma,Synthesis,Upper-Division Undergraduate},
language = {written in English.},
month = mar,
number = {3},
pages = {477},
title = {{Improved Synthesis of Geodken's Macrocycle through the Synthesis of the Dichloride Salt}},
url = {http://pubs.acs.org/doi/abs/10.1021/ed084p477},
volume = {84},
year = {2007}
}

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