29333-99-1

Upstream product

• 50-00-0 formaldehyd 
• 646-19-5 heptane-1,7-diamine 
• 99993-61-0 tetra-N-methyl-hept-2-ynediyldiamine 
• 91336-72-0 ω-Dimethylamino-oenanthsaeure-dimethylamid 
• 10297-06-0 1-chloro-5-hexyne 
• 2468-56-6 1-iodo-5-hexyne 
• 71410-49-6 hex-5-ynyl-dimethyl-amine 
• 54771-63-0 7-chloroheptanoic acid chloride 
• 67-56-1 methanol 
• 4549-31-9 1,7-dibromoheptane 
• 124-40-3 dimethyl amine 
• 98119-90-5 hexa-N-methyl-N,N'-heptanediyl-di-ammonium; dihydroxide 

Downstream Products

• 71241-40-2 di-μ-(N,N,N',N'-tetramethylheptane-1,7-diamine-N,N')bis(dichloropalladium(II))-benzene (1/1) 

Relevant academic research and scientific papers

N-Methylation of Amines with Methanol Catalyzed by a Cp?Ir Complex Bearing a Functional 2,2′-Bibenzimidazole Ligand

A new type of Cp?Ir complex bearing a functional 2,2′-bibenzimidazole ligand was designed, synthesized, and found to be a highly effective and general catalyst for the N-methylation of a variety of amines with methanol in the presence of a weak base (0.3 equiv of Cs2CO3).

The ionic hydrogen/deuterium bonds between diammoniumalkane dications and halide anions

Halide-anion binding to 1,12-dodecanediammonium, tetramethyl-1,12- dodecanediammmonium, and tetramethyl-1,7-heptanediammonium has been investigated with infrared multiple-photon dissociation (IRMPD) spectroscopy in the 1000-2250cm-1 spectral region and with theory. Both charged ammonium groups in these diammonium compounds interact with the halide anion resulting in an ionic hydrogen bond (IHB) stretching frequency outside of the spectral frequency range that can be measured with the free-electron laser (FEL). This frequency is shifted into the spectral range upon exchanging all of the labile hydrogen atoms with deuterium atoms, thus making measurement of the ionic deuterium bond (IDB) stretching frequency possible. The IDB stretching frequency shifts to higher values with increasing halide-anion size, methylation of the ammonium groups, and alkane chain length, consistent with the halide-anion-deuterium bond strength decreasing with decreasing gas-phase basicity of the halide anion and the increasing gas-phase basicity of the ammonium groups. The IDB stretching frequency also depends on the alkane chain length owing to constraints on the angle of the bonds between the halide anion and the two ammonium groups. There are additional bands in the IDB stretching feature in the IRMPD spectra, which are attributed to Fermi resonances and arise from coupling with overtone or combination bands that can be identified from theory and depend on the halide-anion identity and alkane chain length.

Exploring the self-assembly of polar dimeric capsules using molecular rulers

A homologous series of N,N,N′,N′-tetramethylalkyl-N,N′- dioxides is used to probe the level of guest induced fit attainable in the assembly of a dimeric capsule based on tetraurea benzyl calix[4]pyrrole components. A sensible enhancement of the capsules v