Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 286014-53-7, is researched, Molecular C21H25BF4N2, about Pd-η3-C6H9 complexes of the Trost modular ligand: high nuclearity columnar aggregation controlled by concentration, solvent and counterion, the main research direction is palladium deuterated cyclohexenyl diphosphine chiral ligand complex preparation; asym allylic alkylation palladium cyclohexenyl complex chiral diphosphine diamine; small angle neutron scattering palladium deuterated cyclohexenyl diphosphine complex; ring opening coordinative polymerization macrocyclic chelate palladium complex catalyst; deuteration cyclohexanediamine diphosphine cyclohexenyl chiral palladium complex; self assembly palladium deuterated cyclohexenyl diphosphine chiral complex.Quality Control of 1,3-Dimesityl-1H-imidazol-3-ium tetrafluoroborate.
Palladium deuterated and protio half-sandwich η3-cyclohexenyl complexes with chiral diamine-diphosphine ligands, I·BArF4 (1, X = D; 2, X = H) were prepared and examined with small-angle neutron scattering (SANS), mol. dynamics, mol. mechanics methods for origin of their chiral induction in asym. allylic alkylation of the coordinated η3-cyclohexenyl ligand. Under optimized conditions, the Trost modular ligand (TML) series induces high levels of asym. induction in an extraordinarily wide range of reactions involving palladium π-allyl intermediates. Prior mechanistic investigations into reactions involving Pd-η3-C6H9 intermediates have focused on the monomeric 13-membered ring formed via P,P-chelation of the ligand to Pd. However, it is also recognized that ring-opening oligomerization provides a pool of high nuclearity Pd-η3-C6H9 species that, by affording a low level, or even the opposite sense, of asym. induction relative to the mononuclear species, are responsible for a reduction in selectivity under non-optimized conditions. Herein we describe an investigation by NMR spectroscopy, mol. mechanics, mol. dynamics, and small-angle neutron scattering (SANS), of a Pd-η3-C6H9 cation bearing the 1,2-diaminocyclohexane TML ligand (2). Using both nondeuterated and perdeuterated (D47) isotopologues of the resulting complexes ([1]+, [2]+), we show that a two-stage oligomerization-aggregation process forms self assembled cylindrical aggregates of very high nuclearity (up to 56 Pd centers). We also investigate how concentration, solvent and counter-anion all modulate the extent of oligomerization.
Although many compounds look similar to this compound(286014-53-7)Quality Control of 1,3-Dimesityl-1H-imidazol-3-ium tetrafluoroborate, numerous studies have shown that this compound(SMILES:CC1=C([N+]2=CN(C3=C(C)C=C(C)C=C3C)C=C2)C(C)=CC(C)=C1.F[B-](F)(F)F), has unique advantages. If you want to know more about similar compounds, you can read my other articles.
Reference:
Bromide – Wikipedia,
bromide – Wiktionary