110458-66-7

Upstream product

• 7766-50-9 1-undecen-11-ylbromide 
• 123-08-0 4-hydroxy-benzaldehyde 
• 112-43-6 10-Undecen-1-ol 
• 51148-67-5 10-undecen-1-yl p-toluenesulfonate 
• 22666-84-8 4-hydroxybenzaldehyde sodium salt 

Downstream Products

• 1308670-70-3 tert-butyl 4-(hydroxymethyl)benzyl(4-(undec-10-enyloxy)benzyl)carbamate 
• 1308670-71-4 tert-butyl 4-(bromomethyl)benzyl(4-(undec-10-enyloxy)benzyl)carbamate 
• 1308670-72-5 tert-butyl 4-(azidomethyl)benzyl(4-(undec-10-enyloxy)benzyl)carbamate 
• 1308670-73-6 tert-butyl 4-(aminomethyl)benzyl(4-(undec-10-enyloxy)benzyl)carbamate 
• 1308670-74-7 methyl 4-((4-((tert-butoxycarbonyl(4-(undec-10-enyloxy)benzyl)amino)methyl)benzylamino)methyl)benzoate 
• 1308670-75-8 methyl 4-((tert-butoxycarbonyl(4-((tert-butoxycarbonyl(4-(undec-10-enyloxy)benzyl)amino)methyl)benzyl)amino)methyl)benzoate 
• 1308670-76-9 C₄₄H₆₂N₂O₆ 
• 1308670-77-0 C₄₄H₆₁BrN₂O₅ 
• 1308670-78-1 C₄₄H₆₁N₅O₅ 
• 1308670-79-2 C₄₄H₆₃N₃O₅ 
• 1308670-68-9 methyl 4-((4-(undec-10-enyloxy)benzylamino)methyl)benzoate 
• 1308670-69-0 methyl 4-((tert-butoxycarbonyl(4-(undec-10-enyloxy)benzyl)-amino)methyl)benzoate 

Relevant academic research and scientific papers

Rapid and High-Yield Synthesis of [23]Crown Ether: Applied as a Wheel Component in the Formation of Pseudo[2]rotaxane and Synthesis of [2]Catenane with a Dibenzylammonium Dumbbell

A facile, rapid, and high yield synthesis of [23]crown ether (X23C7) has been developed from commercially available starting materials, in one step with good to excellent yield. The reaction is completed in 6 h under room temperature conditions, with the highest yield being 81%. The X23C7 macrocycle formed pseudo[2]rotaxane with a dibenzylammonium ion (DBA+) dumbbell, exhibiting strong association (Ka = 2.61 × 103 M-1). Consequently, a [2]catenane was synthesized from a DBA+-based diolefin terminated salt and X23C7 in 81% yield, using a threading-followed-ring-closing-metathesis approach.

Stable negative differential resistance in porphyrin based σ-π-σ monolayers grafted on silicon

Two Si-based hybrid self-assembled monolayers were synthesized by electro-grafting two di-O-alkylated porphyrins as the σ-π-σ systems. The monolayers showed a stable and reversible negative differential resistance (NDR) property at room temperature. The monolayer, fabricated using the porphyrin with fluorophenyl groups was more compact and showed a tenfold peak-to-valley ratio (PVR) relative to the other similar system devoid of the fluorine atoms in the porphyrin moiety. This suggested better pre-organization of the former, possibly by hydrogen bonding through the electro-negative fluorine atoms.

A magnetic nanoparticle-supported N-heterocyclic carbene-palladacycle: An efficient and recyclable solid molecular catalyst for Suzuki-Miyaura cross-coupling of 9-chloroacridine

A robust magnetic nanoparticle-supported N-heterocyclic carbene-palladacycle has been readily synthesized by directly anchoring the structural defined acenaphthoimidazolylidene palladacycle with a long tail on magnetic nanoparticles (MNPs), and functioned as a solid molecular catalyst and exhibited extremely high catalytic activity towards the challenging Suzuki-Miyaura cross-coupling reactions between less-studied heterocyclic 9-chloroacridine and diverse boronic acids. Remarkably, the catalyst could be used 5 times without obvious loss of activity highlighting the efficiency of our strategy of immobilization of previledged catalysts.

NOVEL MILD STEEL CORROSION INHIBITOR COMPOUNDS

Compounds and methods of inhibiting corrosion of mild steel. Compounds disclosed herein are cationic and contain multiple functional motifs such as propargyl, cinnamaldehyde, isoxazolidine and hydrophobe. These compounds are found to be effective in inhibiting mild steel corrosion in HCl, H2SO4, NaCl and CO2-saturated environments.

A metathesis route for BODIPY labeled polyolefins

It is demonstrated how acyclic diene metathesis polymerization (ADMET) provides an efficient strategy for the labeling of polyolefins. The versatility of phosphorus chemistry allows designing substituted BODIPY monomers or chain stoppers for the synthesis of precise labeled (degradable) polyphosphoesters.

Template-directed synthesis of kinetically and thermodynamically stable molecular necklace using ring closing metathesis

We report the template-directed synthesis of a well-defined, kinetically stable [5]molecular necklace with dialkylammonium ion (R2NH 2+) as recognition site and DB24C8 as macrocycle. A thread containing four dialkylammonium ions with olefin at both ends was first synthesized and then subjected to threading with an excess amount of DB24C8 to form pseudo[5]rotaxane, which in situ undergoes ring closing metathesis at the termini with second generation Grubbs catalyst to yield the desired [5]molecular necklace. The successful synthesis of [5]molecular necklace is mainly attributed to the self-assembly and dynamic covalent chemistry which allows the formation of thermodynamically most stable product. The self-assembly of the DB24C8 ring onto the recognition site known as templating effect was driven by noncovalent stabilizing interactions like [N+-H...O], [C-H...O] hydrogen bonds as well as [π...π] interactions which is facilitated in non-polar solvents. The reversible nature of olefin metathesis reaction makes it suitable for dynamic covalent chemistry since proof-reading and error-checking operates until it generates thermodynamically the most stable interlocked molecule. Riding on the success of [5]molecular necklace, we went a step further and attempted to synthesize [7]molecular necklace using the same protocol. This led to the synthesis of another thread with olefin at both ends but having six dibenzylammonium ions along the thread. However, the extremely poor solubility of this thread containing six secondary ammonium ions limits the self-assembly process even after we replaced the typical PF6 - counter anion with a more lipophilic BPh4- anion. Although the poor solubility of the thread remains the bottleneck for making higher order molecular necklaces yet this approach of "threading-followed-by-ring-closing-metathesis" for the first time produces kinetically and thermodynamically stable, well-defined, homogeneous molecular necklace which was well characterized by one-dimensional, two-dimensional, variable temperature proton NMR spectroscopy and ESI mass spectroscopy.

Reversible photoswitching of stimuli-responsive Si(100) surfaces engineered with an assembled 1-cyano-1-phenyl-2-[4′-(10-undecenyloxy)phenyl]- ethylene monolayer

Si(100) surfaces were molecularly engineered by covalent linkage of a monolayer of two stilbene-based chromophores, either 1-cyano-1-phenyl-2- [4′-(10-undecenyloxy)phenyl]-ethylene or its chlorine derivative, 1-cyano-1-(4-Cl-phenyl)-2-[4′-(10-undecenyloxy)phenyl]-ethylene. The hybrid systems have been probed by monochromatized angle-resolved X-ray photoelectron spectroscopy (AR-XPS) and atomic force microscopy (AFM) measurements. Results indicated robust covalent linkage of stilbene molecules to the functionalized substrate surfaces. AFM lithography and contact angle (CA) analysis confirmed that the adopted molecular architectures proved to be well-suited for reversible cis-trans photoswitching promoted by UV irradiation in the solid state. The Royal Society of Chemistry 2008.

Porphyrin derivatives their use in photodynamic therapy and medical devices containing them

There is provided a compound of formula (I), wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, X, Y1, Y2, Y3, Z, M, A-B and C-D have meanings given in the description, which are useful in the treatment of medical conditions for which a photodynamic compound is indicated. Compositions, apparatus and methods of treatment of a medical condition for which a photodynamic compound is indicated are also disclosed.

Self-assembly of β-glucosidase and D-glucose-tethering zeolite crystals into fibrous aggregates

β-Glucosidase and D-glucose-tethering micrometer-sized zeolite crystals self-assemble into thin (2-20 μm) and very long (>1 cm) fibrous aggregates in water. The process proceeds at a faster rate in a buffer solution of pH 4.8 at which the enzymatic activity is highest. The zeolite and enzyme remain intact within the fibrous material. Furthermore, the enzymatic activity of β-glucosidase is preserved even after they are kept in water for more than 6 months at room temperature. With the zeolite to enzyme weight ratio of 5, all the zeolite crystals are buried within the round fibrils which consist of either a single strand or helical double strands. Upon increasing the ratio to 10, clusters of unburied zeolite crystals appear on the exterior of the fibrils, while narrow flat fibers with smooth surfaces are formed upon decreasing the ratio to 2.5. The process is proposed to initiate by the tight binding between the zeolite-bound D-glucose moieties and β-glucosidase followed by crystallization of the enzyme over the zeolite-bound enzyme monolayer. This report thus reveals a novel behavior of β-glucosidase and demonstrates an unprecedented phenomenon that an enzyme and its substrate-tethering inorganic crystals self-assemble into structured aggregates.

Synthesis and Characterization of Liquid Crystalline Monomers and Side-Chain Polymers Containing Diphenyldiacetylene Mesogens

Nine unsymmetrically diphenyldiacetylenic monomers were prepared.The phase behavior as well as thermal polymerization of the obtained monomers were characterized by optical polarizing microscopy and DSC measurement.UV absorption, refractive indices and dielectric constants of the monomers were also measured.The olefinic monomers were subjected to undergo hydrosilylation reaction with poly(methylhydrogensiloxane) to form the polysiloxanes.Thermal behavior of the prepared polysiloxanes were studied.