6533b827fe1ef96bd12853ea

RESEARCH PRODUCT

New Synthesis oftrans-Disubstituted Cyclam Macrocycles – Elucidation of the Disubstitution Mechanism on the Basis of X-ray Data and Molecular Modeling

Slimane DahaouiGuy RoyalAlain TabardV. Dahaoui-gindreyPluton PullumbiRoger GuilardClaude Lecomte

subject

chemistry.chemical_compoundMolecular modelchemistryMechanism (philosophy)StereochemistryOrganic ChemistryCyclamX ray dataReactivity (chemistry)Physical and Theoretical ChemistryHexadecaneCombinatorial chemistry

description

A new way to synthesize trans-disubstituted cyclam tetraazamacrocycles 1 is reported. The synthesis proceeds in three steps via the tricyclic 1,4,8,11-tetraazatricyclo[9.3.1.14,8]hexadecane system 2, which can be selectively dialkylated and hydrolyzed under basic conditions to give the final product 1. An understanding of the reactivity, based on the X-ray experimental electrostatic potential and molecular modeling of the 1,4,8,11-tetraazatricyclo[9.3.1.14,8]hexadecane macrotricycle, has permitted the elucidation of a new reaction pathway leading to the trans-disubstituted cyclam.

https://doi.org/10.1002/(sici)1099-0690(199809)1998:9<1971::aid-ejoc1971>3.0.co;2-d