Author: Jessica.F

Liu, Jin published the artcileA Comparison of Acetyl- and Methoxycarbonylnitrenes by Computational Methods and a Laser Flash Photolysis Study of Benzoylnitrene, SDS of cas: 16332-06-2, the publication is Journal of Organic Chemistry (2004), 69(25), 8583-8593, database is CAplus and MEDLINE.

D. functional theory (DFT), CCSD(T), and CBS-QB3 calculations were performed to understand the chem. and reactivity differences between acetylnitrene (CH₃C(:O)N) and methoxycarbonylnitrene (CH₃OC(:O)N) and related compounds CBS-QB3 theory alone correctly predicts that acetylnitrene has a singlet ground state. We agree with previous studies that there is a substantial N-O interaction in singlet acetylnitrene and find a corresponding but weaker interaction in methoxycarbonylnitrene. Methoxycarbonylnitrene has a triplet ground state because the oxygen atom stabilizes the triplet state of the carbonyl nitrene more than the corresponding singlet state. The oxygen atom also stabilizes the transition state of the Curtius rearrangement and accelerates the isomerization of methoxycarbonylnitrene relative to acetylnitrene. Acetyl azide is calculated to decompose by concerted migration of the Me group along with nitrogen extrusion; the free energy of activation for this concerted process is only 27 kcal/mol, and a free nitrene is not produced upon pyrolysis of acetyl azide. Methoxycarbonyl azide, on the other hand, does have a preference for stepwise Curtius rearrangement via the free nitrene. The bimol. reactions of acetylnitrene and methoxycarbonylnitrene with propane, ethylene, and methanol were calculated and found to have enthalpic barriers that are near zero and free energy barriers that are controlled by entropy. These predictions were tested by laser flash photolysis studies of benzoyl azide. The absolute bimol. reaction rate constants of benzoylnitrene were measured with the following substrates: acetonitrile (k = 3.4 × 10⁵ M^-1 s^-1), methanol (6.5 × 10⁶ M^-1 s^-1), water (4.0 × 10⁶ M^-1 s^-1), cyclohexane (1.8 × 10⁵ M^-1 s^-1), and several representative alkenes. The activation energy for the reaction of benzoylnitrene with 1-hexene is -0.06 ± 0.001 kcal/mol. The activation energy for the decay of benzoylnitrene in pentane is -3.20 ± 0.02 kcal/mol. The latter results indicate that the rates of reactions of benzoylnitrene are controlled by entropic factors in a manner reminiscent of singlet carbene processes.

Journal of Organic Chemistry published new progress about 16332-06-2. 16332-06-2 belongs to ethers-buliding-blocks, auxiliary class Amine,Aliphatic hydrocarbon chain,Amide,Ether, name is 2-Methoxyacetamide, and the molecular formula is C3H7NO2, SDS of cas: 16332-06-2.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Kumar, Ashwini Prem published the artcileRational design, molecular docking, dynamic simulation, synthesis, PPAR-γ competitive binding and transcription analysis of novel glitazones, COA of Formula: C9H10O4, the publication is Journal of Molecular Structure (2022), 133354, database is CAplus.

Over the last decade, peroxisome proliferator-activated receptor (PPAR-γ) has emerged as one of the important therapeutic targets in several metabolic and neurodegenerative disorders. The remarkable progress in drug discovery has resulted in designing novel PPAR-γ activators. Thiazolidinediones, also known as glitazones, have been demonstrated to play a significant role in treating several neurodegenerative diseases, diabetes, and cancer. Despite its wide range of adverse effects, glitazones orchestrate significant pharmacol. activities. In this backdrop, we designed and synthesized novel glitazones for potential PPAR-γ binding activity. The synthesized novel compounds were structurally analyzed using 1H NMR, 13C NMR and FT-IR. The interaction binding modes, binding free energy, and crucial amino acids involved in interactions of designed compounds with the target protein were studied using mol. docking. Further, mol. dynamic modeling was used to evaluate the stability of the best-docked complexes. TR-FRET, an in vitro PPAR-γ competitive binding assay, was performed to confirm the affinity of the well-docked compounds for the target protein. It demonstrated that the compounds explicitly bind to the PPAR-γ ligand-binding domain to exhibit pharmacol. activity. The cytotoxicity of synthesized compounds was performed and confirmed the PPAR-γ transcription activity on SH-SY5Y cell lines

Journal of Molecular Structure published new progress about 134-96-3. 134-96-3 belongs to ethers-buliding-blocks, auxiliary class Immunology/Inflammation,COX,Natural product, name is 4-Hydroxy-3,5-dimethoxybenzaldehyde, and the molecular formula is C9H10O4, COA of Formula: C9H10O4.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Yadav, J. S. published the artcileStereoselective total synthesis of (+)-sapinofuranone B, Related Products of ethers-buliding-blocks, the publication is Tetrahedron (2011), 67(25), 4620-4627, database is CAplus.

Two approaches for the total synthesis of (+)-sapinofuranone B have been described. The first strategy utilizes the methodol. developed earlier in our group to get the chiral propargyl alc. and the second strategy involves generation of threo-1,2-diol derivative by diastereoselective and enantioselective addition of [(Z)-γ-methoxymethoxyallyl]diisopinocampheylborane onto aldehyde and cross metathesis as the key steps.

Tetrahedron published new progress about 99438-28-5. 99438-28-5 belongs to ethers-buliding-blocks, auxiliary class Chiral,Aliphatic cyclic hydrocarbon, name is (+)-B-Methoxydiisopinocampheylborane, and the molecular formula is C6H4ClNO2, Related Products of ethers-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Grishin, Igor Yu. published the artcileA sequence of acylamination and acylation reactions in polyphosphoric acid – a novel approach to the Friedlander synthesis of 2-arylquinolines, Formula: C8H10O2, the publication is Chemistry of Heterocyclic Compounds (New York, NY, United States) (2022), 58(6-7), 313-318, database is CAplus.

A method for the synthesis of 2-(2-acylaminoaryl)quinolines I (R¹ = OMe, -OCH₂CH₂O-, Me; R² = Me, Et) was developed based on a one-pot sequence of direct electrophilic acylamination of arenes with nitroalkanes R²NO₂ in polyphosphoric acid and acylation at the ortho position with respect to the acylamino group.

Chemistry of Heterocyclic Compounds (New York, NY, United States) published new progress about 91-16-7. 91-16-7 belongs to ethers-buliding-blocks, auxiliary class Benzene,Ether,Inhibitor,Inhibitor,Inhibitor, name is 1,2-Dimethoxybenzene, and the molecular formula is C8H10O2, Formula: C8H10O2.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Meena, Mahesh published the artcileI₂/FeCl₃ Promoted Cascade Reaction of 4-Quinazolinone, Pyridine, and Chalcone for the Synthesis of Indolizines, Safety of (2-Methoxyphenyl)methanamine, the publication is ChemistrySelect (2022), 7(21), e202201378, database is CAplus.

The indolizines nucleus is an important element of many synthetic mols. with significant biol. activity. An efficient methodol. for the synthesis of a variety of indolizines from quinazolinone, pyridine, and chalcone via I₂/FeCl₃ has been described. The reaction was promoted through zwitterion formation/cyclization/aromatization sequence, affording the desired products in moderate to very good yields. This approach is a highly efficient and convenient way to get derivatives of indolizines from readily accessible substrate under relatively mild reaction conditions.

ChemistrySelect published new progress about 6850-57-3. 6850-57-3 belongs to ethers-buliding-blocks, auxiliary class Amine,Benzene,Ether, name is (2-Methoxyphenyl)methanamine, and the molecular formula is C8H11NO, Safety of (2-Methoxyphenyl)methanamine.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Barrett, Anthony G. M. published the artcileB-[3-((Diisopropylamino)dimethylsilyl)allyl]diisopinocampheylborane: an excellent reagent for the stereoselective synthesis of anti vicinal diols, Recommanded Product: (+)-B-Methoxydiisopinocampheylborane, the publication is Journal of Organic Chemistry (1991), 56(18), 5243-5, database is CAplus.

Title reagent I, derived from (+)-α-pinene, reacted with aldehydes to provide, on work up with hydrogen peroxide, (3S,4R)-dihydroxy-1-alkenes. These were formed with both high relative and absolute stereochem. control. The antipodal reagent, derived from (-)-α-pinene, gave the corresponding (3R,4S)-diols.

Journal of Organic Chemistry published new progress about 99438-28-5. 99438-28-5 belongs to ethers-buliding-blocks, auxiliary class Chiral,Aliphatic cyclic hydrocarbon, name is (+)-B-Methoxydiisopinocampheylborane, and the molecular formula is C21H37BO, Recommanded Product: (+)-B-Methoxydiisopinocampheylborane.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Barrett, Anthony G. M. published the artcileSynthetic studies on calyculin A: a convenient asymmetric synthesis of anti-vicinal diols, Recommanded Product: (+)-B-Methoxydiisopinocampheylborane, the publication is Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999) (1994), 1901-5, database is CAplus.

Anti-vicinal diols, e.g. I [R = Ph, cyclohexyl, (CH₂)₅Me] and II, have been prepared with excellent relative and absolute stereocontrol via the reaction of aldehydes with B-{3-[(diisopropylamino)dimethylsilyl]allyl}diisopinocampheylborane in THF and Et₂O and work-up using potassium fluoride, potassium hydrogen carbonate and hydrogen peroxide in aqueous methanol. Absolute stereoselectivities of reactions were determined by conversion of four product diols into bis[(R)-α-methoxy-α-(trifluoromethyl)phenylacetate] esters. The reactions are relevant to the synthesis of the marine phosphatase inhibitor calyculin A.

Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999) published new progress about 99438-28-5. 99438-28-5 belongs to ethers-buliding-blocks, auxiliary class Chiral,Aliphatic cyclic hydrocarbon, name is (+)-B-Methoxydiisopinocampheylborane, and the molecular formula is C21H37BO, Recommanded Product: (+)-B-Methoxydiisopinocampheylborane.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Peyronel, Giorgio published the artcileInfrared investigations on the dithioformamidinium dihalides, Name: Formamidine disulfide dihydrochloride, the publication is Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy (1983), 39A(7), 617-20, database is CAplus.

[((H₂N)₂CS)₂]X₂.H₂O (X = Cl, Br, I) and the anhydrous dibromide were investigated by IR spectroscopy. The νNH and δNH₂ bands were identified from the deuterated dithioformamidinium diiodide. With respect to thiourea the νNH and δNH₂ frequencies decreased and increased resp., as in other S-bonded derivatives of thiourea, and the ν_asCN₂ and νCS frequencies increased and decreased resp., in agreement with the increased CN double bond character and the formation of a C-S single bond.

Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy published new progress about 14807-75-1. 14807-75-1 belongs to ethers-buliding-blocks, auxiliary class Salt,Thiourea,Amine,Aliphatic hydrocarbon chain, name is Formamidine disulfide dihydrochloride, and the molecular formula is C2H8Cl2N4S2, Name: Formamidine disulfide dihydrochloride.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Bartz, Jan published the artcileOrganic sulfur compounds in the iodine-azide reaction. III. Linear and cyclic derivatives of thiourea, Category: ethers-buliding-blocks, the publication is Zeszyty Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, Matematyka, Fizyka, Chemia (1967), 161-7, database is CAplus.

Thiourea and many of the 34 derivatives examined had high induction coefficients due to the mesomeric character of thiourea. The differences in induction coefficients of thiourea and its mono- and di-substituted derivatives were negligible. Introduction of 3 Me groups lowered slightly the induction, and 4 Me groups reduced it by one half. NH2 or NH groups separated from each other by at least 1 C atom promoted the induction, whereas the presence of NHNH2 groups had an inhibiting effect.

Zeszyty Naukowe Uniwersytetu im. Adama Mickiewicza w Poznaniu, Matematyka, Fizyka, Chemia published new progress about 14807-75-1. 14807-75-1 belongs to ethers-buliding-blocks, auxiliary class Salt,Thiourea,Amine,Aliphatic hydrocarbon chain, name is Formamidine disulfide dihydrochloride, and the molecular formula is C2H8Cl2N4S2, Category: ethers-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Singh, Anshu published the artcileDesigned pincer ligand supported Co(II)-based catalysts for dehydrogenative activation of alcohols: Studies on N-alkylation of amines, α-alkylation of ketones and synthesis of quinolines, Recommanded Product: N-(4-Methoxybenzyl)pyridin-2-amine, the publication is Dalton Transactions (2021), 50(24), 8567-8587, database is CAplus and MEDLINE.

Base-metal catalysts Co1, Co2 and Co3 were synthesized from designed pincer ligands L¹, L² and L³ having NNN donor atoms, resp. Co1, Co2 and Co3 were characterized by IR, UV-visible and ESI-MS spectroscopic studies. Single crystal x-ray diffraction studies were studied to authenticate the mol. structures of Co1 and Co3. Catalysts Co1, Co2 and Co3 were used to study the dehydrogenative activation of alcs. for N-alkylation of amines, α-alkylation of ketones and synthesis of quinolines. Under optimized reaction conditions, a broad range of substrates including alcs., anilines and ketones were exploited. Control experiments for N-alkylation of amines, α-alkylation of ketones and synthesis of quinolines were examined to understand the reaction pathway. ESI-MS spectral studies were studied to characterize Co-alkoxide and Co-hydride intermediates. Reduction of styrene by evolved H gas during the reaction was studied to authenticate the dehydrogenative nature of the catalysts. Probable reaction pathways are proposed for N-alkylation of amines, α-alkylation of ketones and synthesis of quinolines from control experiments and detection of reaction intermediates.

Dalton Transactions published new progress about 52818-63-0. 52818-63-0 belongs to ethers-buliding-blocks, auxiliary class Pyridine,Amine,Benzene,Ether, name is N-(4-Methoxybenzyl)pyridin-2-amine, and the molecular formula is C10H16BNO2, Recommanded Product: N-(4-Methoxybenzyl)pyridin-2-amine.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem