Month: April 2022

Computed Properties of C6H6N2O. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Picolinamide, is researched, Molecular C6H6N2O, CAS is 1452-77-3, about Half-sandwich ruthenium(II) complexes containing biphenylamine based Schiff base ligands: Synthesis, structure and catalytic activity in amidation of various aldehydes. Author is Nagalakshmi, Veerasamy; Nandhini, Raja; Brindha, Veerappan; Krishnamoorthy, Bellie Sundaram; Balasubramani, Kasthuri.

New half-sandwich ruthenium (II) complexes [(η6-p-cymene)Ru (L1-3)Cl] (1-3) containing biphenylamine based Schiff base ligands (HL1-3) have been synthesized and characterized by anal. and spectroscopic methods. Addnl., the solid state structure of 2 has been determined by single crystal X-ray diffraction study. The complex 2 serves as a catalyst for the amidation of various aldehydes to amides in good yield.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Reference of 1-Bromoundecane. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Synthesis and Docking Study of N-(Cinnamoyl)-N’-(substituted)acryloyl Hydrazide Derivatives Containing Pyridinium Moieties as a Novel Class of Filamentous Temperature-Sensitive Protein Z Inhibitors against the Intractable Xanthomonas oryzae pv. oryzae Infections in Rice. Author is Zhou, Xiang; Feng, Yu-Mei; Qi, Pu-Ying; Shao, Wu-Bin; Wu, Zhi-Bing; Liu, Li-Wei; Wang, Yi; Ma, Hao-Dong; Wang, Pei-Yi; Li, Zhong; Yang, Song.

A series of novel N-(cinnamoyl)-N’-(substituted)acryloyl hydrazide derivatives containing pyridinium moieties I•X- [n = 4-11; R = Ph, 4-FC6H4, 2-thienyl, etc.; X = Br, I] were designed, and the anti-Xoo activity was determined The bioassay results showed that compound I•Br- [n = 10; R = Ph; X = Br] had excellent anti-Xoo activity (EC50 = 0.99 mg L-1) in vitro and distinct curative activity (63.2% at 200 mg L-1) in vivo. Further studies revealed that these designed compounds were XooFtsZ inhibitors, validating by the reduced GTPase activity of recombinant XooFtsZ, the non-filamentous XooFtsZ assembly observed in the TEM images, and the prolonged Xoo cells from the fluorescence patterns. Computational docking studies showed that compound I•Br- [n = 10; R = Ph; X = Br] had strong interactions with ASN34, GLN193, and GLN197 residues located in the α helix regions of XooFtsZ. The present study demonstrated the developed FtsZ inhibitors could serve as agents to control Xoo-induced infections.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

HPLC of Formula: 15227-42-6. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about Spectral studies of some pyridine and bipyridine complexes of platinum(II). Author is Agarwala, Badri Vishal.

Electronic absorption spectra and magnetic CD (MCD) spectra were studied for the square planar complexes cis- and trans-Pt(py)2Cl2 and Pt(2,2′-bipyridine)Cl2(I). Detailed studies were carried out for I due to its fair solubility in many solvents and the solvent effect on its electronic spectra was investigated. The band assignments of the electronic spectra are discussed and are supported by the MCD spectra. NMR and magnetic studies were also carried out on the complexes to further elucidate their configuration. All the complexes studied are diamagnetic in conformity with their square planar arrangement.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Multistate luminescence, absorption and MCD studies of the relative energies of d → d, d → π*, and n,π → π* transitions for the cis and trans isomers of dichlorobis(pyridine)platinum(II), published in 1983-02-16, which mentions a compound: 15227-42-6, mainly applied to UV luminescence platinum chloride pyridine; magnetic CD platinum chloride pyridine, Computed Properties of C10H10Cl2N2Pt.

Luminescence, absorption, and magnetic CD (MCD) experiments are reported for cis- and trans-dichlorobis(pyridine)platinum(II). For the trans isomer, an anal. of the temperature dependence of the lifetimes and luminescence intensities indicates that emission at 605 nm is from 2 excited π* states separated by 240 cm-1. For the cis isomer, time-resolved spectroscopy allowed observation of 2 emission bands at 600 and 700 nm, which were assigned from their lifetimes to π* → d and d → d transitions, resp. Further, temperature dependent lifetime studies show that the 600-nm band (π* → d) is from 2 electronic states separated by 200 cm-1. The absorption spectra of both isomers were measured at room and low temperatures in solution, in glasses, and in KCl pellets. From a comparison with the pyridine and Pt(NH3)2Cl2 absorption and MCD spectra and MO calculations, the observed absorption bands for Pt(py)2Cl2 are assigned as d → d, d → π*, and n, π → π* transitions. For the cis isomer the lowest unoccupied mol. orbital is a d metal orbital.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 1-Bromoundecane(SMILESS: CCCCCCCCCCCBr,cas:693-67-4) is researched.Reference of 2,6-Dimethyl-3,5-heptanedione. The article 《Alkyl Chain Tuning of Small Molecule Acceptors for Efficient Organic Solar Cells》 in relation to this compound, is published in Joule. Let’s take a look at the latest research on this compound (cas:693-67-4).

The field of organic solar cells has seen rapid developments after the report of a high-efficiency (15.7%) small mol. acceptor (SMA) named Y6. In this paper, we design and synthesize a family of SMAs with an aromatic backbone identical to that of Y6 but with different alkyl chains to investigate the influence of alkyl chains on the properties and performance of the SMAs. First, we show that it is beneficial to use branched alkyl chains on the nitrogen atoms of the pyrrole motif of the Y6. In addition, the branching position of the alkyl chains also has a major influence on material and device properties. The SMA with 3rd-position branched alkyl chains (named N3) exhibits optimal solubility and electronic and morphol. properties, thus yielding the best performance. Further device optimization using a ternary strategy allows us to achieve a high efficiency of 16.74% (and a certified efficiency of 16.42%).

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Computed Properties of C11H23Br. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Synthesis and antibacterial activity of new tetrakisquaternary ammonium compounds based on pentaerythritol and 3-hydroxypyridine. Author is Vereshchagin, A. N.; Minaeva, A. P.; Egorov, M. P..

Tetrakisquaternary ammonium compounds based on pentaerythritol I (n = 7, 8, 9, 10, 11, 12) were synthesized for the first time. Bacteriostatic effect of the obtained compounds I was evaluated towards opportunistic gram-pos. Methicillin-resistant Staphylococcus aureus (strain ATCC 25923), gram-neg. Escherichia coli (ATCC 25922), and Pseudomonas aeruginosa (ATCC 27853). The activity of reported salts I was evaluated competitively with that of known antiseptics, Octenidine Dihydrochloride and Chlorhexidine Digluconate. The effect of length of the alkyl substituent in the salts I on their biol. activity was established. These new compounds I are based on available pentaerythritol and 3-hydroxypyridine.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Application of 1452-77-3. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Picolinamide, is researched, Molecular C6H6N2O, CAS is 1452-77-3, about Aqueous-Phase Nitrile Hydration Catalyzed by an In Situ Generated Air-Stable Ruthenium Catalyst. Author is Ounkham, Whalmany L.; Weeden, Jason A.; Frost, Brian J..

RuCl2(PTA)4 (PTA=1,3,5-triaza-7-phosphaadamantane) is an active, recyclable, air-stable, aqueous-phase nitrile hydration catalyst. The development of an in situ generated aqueous-phase nitrile hydration catalyst (RuCl3·3 H2O + 6 equiv PTA) is reported. The activity of the in situ catalyst is comparable to RuCl2(PTA)4. The effects of [PTA] on the activity of the reaction were investigated: the catalytic activity, in general, increases as the pH goes up, which shows a pos. correlation with [PTA]. The pH effects were further explored for both the in situ and RuCl2(PTA)4 catalyzed reaction in phosphate buffer solutions with particular attention given to pH 6.8 buffer. Increased catalytic activity was observed at pH 6.8 vs. water for both systems with turnover frequency (TOF) up to 135 h-1 observed for RuCl2(PTA)4 and 64 h-1 for the in situ catalyst. Catalyst loading down to 0.001 mol % was examined with turnover numbers as high as 22 000 reported. Similar to the preformed catalyst, RuCl2(PTA)4, the in situ catalyst could be recycled more than five times without significant loss of activity from either water or pH 6.8 buffer.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Biological effect of platinum(II) complexes with two different neutral ligands of cis-[PtNH3LCl2] type, published in 1981-08-31, which mentions a compound: 15227-42-6, Name is cis-Dichlorobis(pyridine)platinum(II), Molecular C10H10Cl2N2Pt, Synthetic Route of C10H10Cl2N2Pt.

The effect of Pt complexes on the growth of corn roots was studied. Two types of Pt complexes were used: (1) cis-[PtNH3LCl2], where L = DMSO, C2H4, acetonitrile, pyridine, and benzylamine, and (2) cis-[PtL2Cl2], where L = pyridine, acetonitrile, and benzylamine. The growth-inhibitory effects of all complexes were lower than that of cis-dichlorodiammine platinum [15663-27-1]. The only compound which showed distinct inhibition of mitosis was cis-[PtNH3(PhCH2NH2)Cl2] [79371-82-7]. The antimitotic activity of the Pt diamine complexes was apparently associated with the cis-diamine fragment of the mol.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Research Support, Non-U.S. Gov’t, Biochimica et Biophysica Acta, Biomembranes called Membrane properties of amacrocyclic tetraether bisphosphatidylcholine lipid: Effect of a single membrane-spanning polymethylene cross-linkage between two head groups of ditetradecylphosphatidylcholine membrane, Author is Tsuchida, Naoyuki; Takagi, Toshiyuki; Takahashi, Hiroshi; Yoshihara, Toshitada; Tobita, Seiji; Sonoyama, Masashi, which mentions a compound: 693-67-4, SMILESS is CCCCCCCCCCCBr, Molecular C11H23Br, COA of Formula: C11H23Br.

The plasma membranes of archaea are abundant in macrocyclic tetraether lipids that contain a single or double long transmembrane hydrocarbon chains connecting the two glycerol backbones at both ends. In this study, a novel amacrocyclic bisphosphatidylcholine lipid bearing a single membrane-spanning octacosamethylene chain, 1,1′-O-octacosamethylene-2,2′-di-O-tetradecyl-bis-(sn-glycero)-3,3′-diphosphocholine (AC-(di-O-C14PC)2), was synthesized to elucidate effects of the interlayer cross-linkage on membrane properties based on comparison with its corresponding diether phosphatidylcholine, 1,2-di-O-tetradecyl-sn-glycero-3-phosphocholine (DTPC), that forms bilayer membrane. Several physicochem. techniques demonstrated that while AC-(di-O-C14PC)2 monolayer, which adopts a particularly high-ordered structure in the gel phase, shows remarkably high thermotropic transition temperature compared to DTPC bilayer, the fluidity of both phospholipids above the transition temperature is comparable. Nonetheless, the fluorescent dye leakage from inside the AC-(di-O-C14PC)2 vesicles in the fluid phase is highly suppressed. The origin of the membrane properties characteristic of AC-(di-O-C14PC)2 monolayer is discussed in terms of the single long transmembrane hydrophobic linkage and the diffusional motion of the lipid mols.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Quality Control of cis-Dichlorobis(pyridine)platinum(II). So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about Palladium(II) and platinum(II) saccharinate complexes containing pyridine and 3-acetylpyridine: Synthesis, crystal structures, fluorescence and thermal properties.

New Pd(II) and Pt(II) complexes of saccharinate (sac), trans-[Pd(py)2(sac)2] (1), cis-[Pt(py)2(sac)2] (2), trans-[Pd(3-acpy)2(sac)2] (3) and cis-[Pt(3-acpy)2(sac)2] (4) (py = pyridine and 3-acpy = 3-acetylpyridine) were synthesized. Elemental anal., UV-visible, IR, NMR and TG/DTA characterizations were carried out. The structures of 1-4 were determined by x-ray diffraction. The Pd(II) and Pt(II) ions are coordinated by two N-bonded sac ligands, and two N atoms of py or 3-acpy, forming a distorted square-planar geometry. The Pd(II) complexes (1 and 3) are trans isomers, while the Pt(II) complexes (2 and 4) are cis isomers. The mononuclear species in the solid state are connected by weak intermol. C-H···O H bonds, C-H···π and π···π stacking interactions. The Pt(II) complexes show significant fluorescence at room temperature

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem