Esters-buliding-blocks

Sharique, Mohammed published the artcileN-Heterocyclic carbene based catalytic platform for Hauser-Kraus annulations, COA of Formula: C7H10O4, the publication is Chemical Science (2020), 11(27), 7239-7243, database is CAplus and MEDLINE.

The venerable Hauser-Kraus annulation is an effective and convergent method for generating oxygenated polycyclic aromatic compounds Despite its application in complex mol. synthesis, the harsh and strongly basic conditions limit its utility in more functionalized mol. settings. The first catalytic Hauser-Kraus annulation was developed based on N-heterocyclic carbene catalysis that proceeded under milder conditions. The scope of the transformation in the presence of several functional groups were demonstrated. A concerted mechanism for the annulation that proceeded through a non-canonical Breslow intermediate was also proposed.

Chemical Science published new progress about 617-52-7. 617-52-7 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Aliphatic hydrocarbon chain,Ester, name is Dimethyl itaconate, and the molecular formula is C10H10O4, COA of Formula: C7H10O4.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Kihara, Hideyuki published the artcileIn situ photochemical conversion from cinnamoyl-functionalized liquid-crystalline monomers to liquid-crystalline dimers, Related Products of esters-buliding-blocks, the publication is Liquid Crystals (2007), 34(11), 1337-1347, database is CAplus.

Liquid-crystalline (LC) monomers, which were functionalized with a cinnamoyl group on their extremity, were synthesized and irradiated with UV light in their LC phases. In the presence of a triplet sensitizer, most LC monomers were converted into the corresponding dimers, which were produced by the cycloaddition reaction of the cinnamoyl group. The photodimerization reaction could proceed while the LC phases were maintained, because the dimers showed LC phases whose temperature ranges were wider than those of the corresponding monomers. A ¹H NMR study of the LC dimers indicated that the cyclobutane unit dominantly had an anti-head-to-head configuration, i.e., δ-truxinate. As the LC monomers, which had a Ph biphenyl-4-carboxylate moiety as a mesogen, showed smectic A phases and the corresponding dimers also exhibited smectic A phases, the authors estimated the smectic layer distances by x-ray diffraction anal. and found that the dimers adopted the structure in which the two mesogens aligned laterally and existed in the same smectic layer in the LC phases.

Liquid Crystals published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C15H14O3, Related Products of esters-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Itoh, Tomomichi published the artcileNonspherical Uniaxial Azobenzene Polymer Particles and Their Shape Changes under UV- or White-Light Irradiation for Stimuli-Response Applications, Application In Synthesis of 135529-02-1, the publication is ACS Applied Polymer Materials (2020), 2(6), 2485-2494, database is CAplus.

In this study, we developed azobenzene polymer particles showing several light-induced shape changes. Conventional azobenzene particles require exposure to polarized white or blue light on a substrate for shape elongation. First, the dispersion polymerization of 6-[4-(4′-methoxyphenylazo)phenoxy]hexyl methacrylate afforded unique oval or short cylindrical shapes with controlled sizes and narrow size distributions. Then, polarized optical microscopic observations and wide-angle X-ray diffraction measurements suggest that the azobenzene moiety formed a uniaxially orientated smectic-layered structure in the particles. Differential scanning calorimetric measurements indicated that the packing structures and particle shapes were closely related to each other. Finally, the particle shape was altered by the trans-cis photoisomerization of azobenzene accompanied by the deformation of the azobenzene packing structure. Interestingly, their shape anisotropy was increased by UV and white-light irradiation The particle shape was changed in a dispersed medium and on a substrate by unpolarized light. Consequently, the combination of a light source and site varied the light-induced shape changes of the azobenzene particles.

ACS Applied Polymer Materials published new progress about 135529-02-1. 135529-02-1 belongs to esters-buliding-blocks, auxiliary class azo,Alkenyl,Benzene,Ester,Ether, name is 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate, and the molecular formula is C23H28N2O4, Application In Synthesis of 135529-02-1.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Perrier, Sebastien published the artcileProgress in RAFT/MADIX polymerization: synthesis, use, and recovery of chain transfer agents, Related Products of esters-buliding-blocks, the publication is ACS Symposium Series (2006), 438-454, database is CAplus.

We report the synthesis of novel chain transfer agents for RAFT/MADIX polymerization, and their use to mediate the polymerization of a variety of monomers, in order to produce a range of functional materials. After polymerization, the chain transfer agent is recovered in a one pot reaction, which also permits to introduce functional groups at the chain-end of the polymers.

ACS Symposium Series published new progress about 19788-49-9. 19788-49-9 belongs to esters-buliding-blocks, auxiliary class Thiol,Aliphatic hydrocarbon chain,Ester, name is Ethyl 2-mercaptopropanoate, and the molecular formula is C5H10O2S, Related Products of esters-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Seki, Toshimi published the artcileStudies on agents with vasodilator and β-blocking activities. III. Synthesis and activity of optical isomers of TZC-1370, Recommanded Product: (R)-Oxiran-2-ylmethyl 3-nitrobenzenesulfonate, the publication is Chemical & Pharmaceutical Bulletin (1995), 43(10), 1719-23, database is CAplus and MEDLINE.

Optical isomers of TZC-1370 were prepared from (R)- and (S)-1-(2-chlorophenoxy)-2,3-epoxypropane. When given i.v. to anesthetized rats, the (S)-isomer was about 40 times more potent in terms of β-blocking activity than the (R)-isomer, while their hypotensive activities were equipotent with that of the racemic compound, TZC-1370.

Chemical & Pharmaceutical Bulletin published new progress about 115314-17-5. 115314-17-5 belongs to esters-buliding-blocks, auxiliary class Epoxides,Chiral,Nitro Compound,Sulfonate,Benzene, name is (R)-Oxiran-2-ylmethyl 3-nitrobenzenesulfonate, and the molecular formula is C15H12O6, Recommanded Product: (R)-Oxiran-2-ylmethyl 3-nitrobenzenesulfonate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Imada, Motosuke published the artcileCopolymers incorporated with β-substituted acrylate synthesized by organo-catalyzed group-transfer polymerization, Application of Methyl 3-phenyl-2-propenoate, the publication is Polymer Journal (Tokyo, Japan) (2021), 53(9), 989-999, database is CAplus.

Various copolymers incorporated with β-substituted acrylates, such as alkyl crotonates (e.g., Me crotonate (MC), Et crotonate (EC), iso-Pr crotonate (iPC), and Bu crotonate (nBC)) and Me cinnamate (MCin), were synthesized by group-transfer polymerization (GTP) using a silicon-based Lewis acid catalyst. In addition to β-substituted acrylates, α-substituted acrylates (e.g., Me methacrylate (MMA) and Bu methacrylate (nBMA)) were examined as comonomers. Proton NMR (¹H NMR) spectroscopy and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) characterizations of the obtained copolymers revealed that each monomer component was incorporated sufficiently. The thermal stabilities of the resulting copolymers were investigated by dynamic mech. anal. (DMA), indicating that the glass-transition temperature (T_g) of the copolymers can be widely varied over a relatively high-temperature range by selecting the optimal comonomer. More specifically, the T_g values of poly(MC-random-EC) (MC/EC molar ratio = 50/50), poly(MC-random-nBC) (MC/nBC molar ratio = 50/50), poly(MC-random-MCin) (MC/MCin molar ratio = 54/46), and poly(nBC-random-MCin) (nBC/MCin molar ratio = 56/44) were 173, 130, 216, and 167°C, resp.

Polymer Journal (Tokyo, Japan) published new progress about 103-26-4. 103-26-4 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Benzene,Ester,Protease,Tyrosinase,Natural product, name is Methyl 3-phenyl-2-propenoate, and the molecular formula is C10H10O2, Application of Methyl 3-phenyl-2-propenoate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Qin, Rui published the artcileSynthesis of LSD1 inhibitor-pyrrole-imidazole polyamide conjugates for region-specific alterations of histone modification, Recommanded Product: 3-(Methoxycarbonyl)benzoic acid, the publication is Heterocycles (2019), 99(2), 891-905, database is CAplus.

Synthetic method of LSD1 inhibitor-pyrrole-imidazole polyamide conjugates for region-specific alterations of histone modification is described. A (1S,2R)-tranylcypromine (PCPA) unit was coupled with an L-lysine part using a nosyl strategy. Conjugation of the inhibitor part with PIP tetramer units was achieved by amide bond formation using PyBOP as a condensation reagent.

Heterocycles published new progress about 1877-71-0. 1877-71-0 belongs to esters-buliding-blocks, auxiliary class Carboxylic acid,Benzene,Ester, name is 3-(Methoxycarbonyl)benzoic acid, and the molecular formula is C9H8O4, Recommanded Product: 3-(Methoxycarbonyl)benzoic acid.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Koike, Kenzo published the artcileSubstrate specificity of regiospecific desaturation of aliphatic compounds by a mutant Rhodococcus strain, Recommanded Product: Isobutyl palmitate, the publication is Bioscience, Biotechnology, and Biochemistry (2000), 64(5), 1064-1066, database is CAplus and MEDLINE.

Substrate specificity of cis-desaturation of aliphatic compounds by resting cells of a mutant, Rhodococcus sp. strain KSM-MT66, was examined Among substrates tested, the rhodococcal cells were able to convert n-alkanes (C13-C19), 1-chloroalkanes (C16 and C18), Et fatty acids (C14-C17) and alkyl (C1-C4) esters of palmitic acid to their corresponding unsaturated products of cis configuration. The products from n-alkanes and 1-chloroalkanes had a double bond mainly at the 9th carbon from their terminal Me groups, and the products from acyl fatty acids had a double bond mainly at the 6th carbon from their carbonyl carbons.

Bioscience, Biotechnology, and Biochemistry published new progress about 110-34-9. 110-34-9 belongs to esters-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Ester, name is Isobutyl palmitate, and the molecular formula is C20H40O2, Recommanded Product: Isobutyl palmitate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Yamada, Tohru published the artcileDirect epoxidation of olefins catalyzed by nickel(II) complexes with molecular oxygen and aldehydes, Application In Synthesis of 5205-11-8, the publication is Bulletin of the Chemical Society of Japan (1991), 64(7), 2109-17, database is CAplus.

In the presence of a bis(1,3-diketonato)nickel(II) complex, various olefins are directly monooxygenated into the corresponding epoxides on treatment with atm. pressure of oxygen or air and aldehydes. Especially, it is noted that bis[1,3-bis(p-methoxyphenyl)-1,3-propanedionato]nickel(II) (I) behaves as an excellent catalyst in the present epoxidation Thus epoxidation of 2-methyl-2-decene in the presence of oxygen, isobutyraldehyde and catalyst I gave the epoxide II quant., at room temperature

Bulletin of the Chemical Society of Japan published new progress about 5205-11-8. 5205-11-8 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Benzene,Ester, name is 3-Methylbut-2-en-1-yl benzoate, and the molecular formula is C14H19NO8, Application In Synthesis of 5205-11-8.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Bednar, Victor Bradley published the artcileA thermosensitive material coated resonant stent for drug delivery on demand, Quality Control of 121-79-9, the publication is Biomedical Microdevices (2021), 23(1), 18, database is CAplus and MEDLINE.

An electromagnetic energy source in the radio-frequency range delivers power to a stent circuit via resonant inductive coupling, allowing a thermally triggered release of gel via Joule heating. A gold-electroplated, medical-grade stainless steel stent, serving as the base of the prototype device, melts a coating made from an emulsion composed mainly of dodecanoic acid. These coated devices produce wirelessly controllable releases of a gel into thermally regulated, stirred water that is near body temperature The gel is made from salt, water, and gelatine from porcine skin and used to simulate drug release in this study. Thus, this system serves as a proof of concept to show the viability of controlling local drug delivery using this prototype device. Dodecanoic acid, a fatty acid, has a phase transition from solid to liquid near 43°C and has relatively good biocompatibility. The average melting temperature of two different emulsions was 40.8 ± 0.7°C, a suitable value for the targeted application. Demonstration of controllable releases used electromagnetic pulses of approx. 180 s in duration, illustrating reproducibility of a controllable release phase while remaining relatively inert in the absence of stimuli. Releases were observable through measuring the conductivity of the water, the water temperature, and the stent temperature This electrothermally active stent device enables wirelessly controlled local delivery with controlled dosage and timing, a concept with a wide range of potential applications. Some relevant examples include inhibiting restenosis or cancer treatment via targeted chemotherapy.

Biomedical Microdevices published new progress about 121-79-9. 121-79-9 belongs to esters-buliding-blocks, auxiliary class Natural product, name is Propyl 3,4,5-trihydroxybenzoate, and the molecular formula is C10H12O5, Quality Control of 121-79-9.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics