139536-08-6

Upstream product

• 767-00-0 4-cyanophenol 
• 112-89-0 1-Bromooctadecane 

Downstream Products

• 134838-25-8 6-(4-Octadecyloxy-phenyl)-[1,3,5]triazine-2,4-diamine 
• 899828-14-9 4-octadecyloxybenzamide 
• 15872-50-1 4-(octadecyloxy)benzoic acid 
• 1492902-79-0 C₅₀H₈₂N₄O₂ 
• 1492902-77-8 C₄₄H₅₆N₄O 
• 383889-29-0 C₆₄H₈₆N₆O₆ 
• 383884-10-4 3,5-dinitro-4-octadecoxybenzonitrile 
• 383884-11-5 3,5-diamino-4-octadecoxybenzonitrile 
• 478505-07-6 C₇₀H₉₀N₂O₁₀ 
• 478505-05-4 C₆₄H₈₆N₂O₁₀ 
• 303157-06-4 3-amino-4-octadecyloxybenzoic acid 
• 303157-04-2 3-amino-4-octadecyloxybenzonitrile 
• 303157-02-0 3-nitro-4-octadecyloxybenzonitrile 

Relevant academic research and scientific papers

Amphiphile self-assembly dynamics at the solution-solid interface reveal asymmetry in head/tail desorption

Amphiphilic alkoxybenzonitriles (ABNs) of varying chain length are studied at the solution/graphite interface to analyze dynamics of assembly. Competitive self-assembly between ABNs and alkanoic acid solvent is shown by scanning tunneling microscopy (STM)

Highly symmetric 2D rhombic nanoporous networks arising from low symmetry amphiphiles

(Figure Presented) Highly symmetric 2D nanoporous molecular networks containing rhombic voids are demonstrated to be accessible from low symmetry amphiphilic molecules. The amide amphiphiles overcome the barrier to symmetry generation in the two-dimensional crystal through forming an aggregate as a building block. This aggregate consists of three inequivalent amphiphiles that assemble to create 3- and 6-fold rotation axes through hydrogen bonding. In the 6-fold rotation axis, an unusual hydrogen bonding network, supported by high resolution scanning tunneling microscopy(STM) images and computation, is observed. This network formed by amide groups significantly contributes to constructing the rhombic nanoporous network, whereas carboxylic acid amphiphiles do not adopt this nanoporo us network due to a geometric difference of hydrogen bonding. This investigation demonstrates that a high symmetry pattern is achievable withoutcorrelation with molecular symmetry through the proper combination of n oncovalent interactions of simple amphiphilic molecules.

HEAT-STABLE DIKETOPYRROLOPYRROLE PIGMENT MIXTURES

The present invention relates to a process for the preparation of a mixture comprising at least two structurally different diketopyrrolopyrrole pigments of formula (1) wherein A1 and A2 are each independently of the other an aromatic or heteroaromatic radical, by reacting a succinic acid ester with at least one unsubstituted or substituted aromatic or heteroaromatic nitrile, which process comprises carrying out the reaction in the presence of at least one compound of formula (2) wherein A is an aromatic or heteroaromatic radical, R3is hydrogen, halogen, methyl, methoxy, -CF3 or -CN, R4 is a linear or, from C3 upwards, optionally branched C1-C30alkyl, C6-C10aryl or C6-C24aralkyl radical, X is -S-, -0-, -CR5R5'-, -COO-, -CONR5-, -SO-, SO2-, -SO2NR5- or -NR5 -and R5 and R5'are each independently of the other hydrogen or a linear or, from C3 upwards, optionally branched C1-C30alkyl, C6-C10aryl or C6-C24aralkyl radical, to the use of such a mixture in the colouring of organic material and in cosmetics, and also to novel diketopyrrolopyrrole pigment mixtures.

Shape-persistent and shape-adaptable macrocycles based on restricted rotation: Studies building toward 'macromolecular playdough'

A rigid 48-membered macrocycle 1 was synthesized and studied that comprises two atropisomeric N,N′-diarylnaphthalenediimide building blocks that adopt stable syn and anti conformations due to restricted rotation about two Caryl-Nimide bonds. The resulting macrocycle maintains three distinct conformations: anti/anti; syn/anti and syn/syn conformers that are stable and separable at room temperatures, and each with distinct shapes and sizes as measured by GPC. At elevated temperatures, macrocycle 1 was conformationally flexible and showed interconversion of the respective isomers. Conformational preferences established at higher temperatures were preserved on cooling to room temperature as the restricted rotation was reestablished and the macrocycle becomes conformationally rigid.

Molecules with shape memory based on restricted rotation

Figure presented Diimide 1 and octaimide 2 both adopt two stable conformations at room temperature as a result of restricted rotation about two Caryl-Nimide single bonds, a compact "folded" and an open "unfolded" structure. Predictable ratios of folded and unfolded rotamers can be achieved by heating in solvents of appropriate polarity as measured by the Reichardt's parameter (ET30). On cooling to room temperature, the resulting conformational changes are "locked in" as restricted rotation is reestablished.

Molecular Recognition of Barbiturates by Diaminotriazine Functionalized Monolayers

Diaminotriazine functionalized amphiphiles were synthesized to form stable monolayers at the air-water interface.Combined examination of FT-IR, ESCA, and reflection absorption spectroscopies confirmed specific binding of barbituric acid and thiobarbituric