Tag: M.W=300-350

Baumgartner, Maria T. published the artcileSteric effects in the synthesis of ortho-substituted 1,1′-binaphthalene derivatives by the S_RN1 and the Stille Reaction, COA of Formula: C22H18O2, the publication is ARKIVOC (Gainesville, FL, United States) (2003), 420-433, database is CAplus.

The scope of the S_RN1 mechanism and the Stille reaction to synthesize 1,1′-binaphthalene derivatives was investigated. The best yield of 2′-methoxy-1,1′-binaphthalenyl-2-ol (52%) was obtained in liquid ammonia or DMSO by the S_RN1 irradiated reaction of 1-iodo-2-methoxynaphthalene with the anion of 2-naphthol. A lower yield (40%) of BINOL is obtained in water with 1-iodo-2-hydroxynaphthalene as substrate when the reaction is sonicated before irradiation The Stille reaction between (2-methoxy-1-naphthyl)-trimethylstannane and 1-iodo-2-methoxynaphthalene afforded low yields (15-11%) of the 1,1′-binaphthalene derivative Based on AM1 and B3LYP calculations the yields of the 1,1′-binaphthalene derivatives obtained through the electron transfer S_RN1 reaction can be attributed to kinetic factors of the radical nucleophile coupling step.

ARKIVOC (Gainesville, FL, United States) published new progress about 2960-93-2. 2960-93-2 belongs to naphthyridine, auxiliary class Naphthalene,Ether,Other MOF ligands,Organic ligands for MOF materials, name is 2,2′-Dimethoxy-1,1′-binaphthalene, and the molecular formula is C22H18O2, COA of Formula: C22H18O2.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Zhou, Qing-cheng published the artcileDesign and synthesis of PPV conjugated light-emitting polymers containing binaphthalene, Related Products of naphthyridine, the publication is Faguang Xuebao (2005), 26(4), 441-447, database is CAplus.

Conjugated polymers as light emitting materials have attracted considerable attention during the past several decades. There is substantial ongoing research towards the design of blue light emitting materials for OLEDs based on conjugated polymers. The conjugation length, steric hindrance within the polymer, must be controlled for such purpose. It is well known that the binaphthyl unit possesses a large dihedral angle ranging from 60° to 120°. Therefore, the conjugation of the binaphthyl-containing polymers can be interrupted by the highly twisted binaphthyl unit. In addition, the highly twisted structure will reduce the intermol. interaction of the polymers. As a result, the binaphthyl-containing polymers will have high quantum efficiency and good solubility Binaphthalene chromophores were introduced into the backbone of conjugated copolymers with different aromatic groups by Wittig or Wittig-Horner reaction, three linear copolymers and a hyperbranched copolymer containing binaphthyl unites were synthesized. All the copolymers were characterized by FT-IR, ¹H NMR. They were readily dissolved in the common solvents such as tetrahydrofuran(THF), dichloromethane, and chloroform. Their photophys. properties have been studied. The results indicated that all copolymers show pure blue light emitting. It is mentionable that the hyperbranched copolymer BN-TPPV shows the highest quantum efficiency (95%) among the four copolymers, which exhibits two emission band peaked at 393 nm and 410 nm in chloroform and one broad emission band peaked at 428 nm in solid film. Cyclic voltammetry was employed to investigated the electrochem. properties of the polymers, their band gaps were ranging from 2.76 eV to 3.05 eV, this result testified that the polymers, BN-PPV, BN-PBPV, BN-TPPV, have the potential to be applied as blue light emitting materials. The results show that it is a practical way to prepare blue light emitting polymers by incorporating binaphthyl into polymer chain.

Faguang Xuebao published new progress about 2960-93-2. 2960-93-2 belongs to naphthyridine, auxiliary class Naphthalene,Ether,Other MOF ligands,Organic ligands for MOF materials, name is 2,2′-Dimethoxy-1,1′-binaphthalene, and the molecular formula is C7H11N, Related Products of naphthyridine.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Krasovskiy, Arkady published the artcileTransition-metal-free homocoupling of organomagnesium compounds, Name: 2,2′-Dimethoxy-1,1′-binaphthalene, the publication is Angewandte Chemie, International Edition (2006), 45(30), 5010-5014, database is CAplus and MEDLINE.

A wide range of functionalized Grignard compounds were coupled by using diphenoquinone I as an electron acceptor. The oxidative dimerization of alkenylmagnesium reagents proceeds with complete retention of the stereochem.

Angewandte Chemie, International Edition published new progress about 2960-93-2. 2960-93-2 belongs to naphthyridine, auxiliary class Naphthalene,Ether,Other MOF ligands,Organic ligands for MOF materials, name is 2,2′-Dimethoxy-1,1′-binaphthalene, and the molecular formula is C22H18O2, Name: 2,2′-Dimethoxy-1,1′-binaphthalene.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Yin, Jingjun published the artcileA Highly Active Suzuki Catalyst for the Synthesis of Sterically Hindered Biaryls: Novel Ligand Coordination, Computed Properties of 2960-93-2, the publication is Journal of the American Chemical Society (2002), 124(7), 1162-1163, database is CAplus and MEDLINE.

A catalyst system for the preparation of biaryls containing four ortho substituents via Suzuki coupling is described. The combination of a catalytic quantity of Pd₂(dba)₃ with either an electron-rich biarylphosphine or DPEPhos is effective using a wide range of substrates. The X-ray crystal structure of (dba)Pd[2-(9-phenanthryl)phenyl-dicyclohexylphosphine], in which the Pd is coordinated to the 9,10-double bond of the phenanthryl group, is also reported.

Journal of the American Chemical Society published new progress about 2960-93-2. 2960-93-2 belongs to naphthyridine, auxiliary class Naphthalene,Ether,Other MOF ligands,Organic ligands for MOF materials, name is 2,2′-Dimethoxy-1,1′-binaphthalene, and the molecular formula is C20H19NO4, Computed Properties of 2960-93-2.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Wang, Sha-Sha published the artcileVariable segment roles: modulation of the packing modes, nanocrystal morphologies and optical emissions, Computed Properties of 159-62-6, the publication is Nanoscale (2018), 10(28), 13310-13314, database is CAplus and MEDLINE.

A review. Three isomers were prepared by covalently grafting carbazole (Cz) onto spiro[fluorene-9,9′-xanthene] (SFX) at different positions. Due to the complicated and variable roles of mol. segments, an evolution of the corresponding mol. packing mode was realized, accompanied by the change of nanocrystal morphol. and photoluminescence properties.

Nanoscale published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C24H29N5O3, Computed Properties of 159-62-6.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Roy, Biswajit published the artcileGround-State Proton-Transfer (GSPT)-Assisted Enhanced Two-Photon Uncaging from a Binol-based AIE-Fluorogenic Phototrigger, Application of 2,2′-Dimethoxy-1,1′-binaphthalene, the publication is Organic Letters (2021), 23(6), 2308-2313, database is CAplus and MEDLINE.

We demonstrated for the first time without any chem. modification the two-photon absorption (TPA) cross-section can be enhanced and red-shifted to the near-IR (NIR) region by the ground-state proton-transfer (GSPT) process. Using GSPT, we developed a simple binol-based aggregation-induced emission (AIE)-fluorogenic phototrigger having a large two-photon uncaging cross-section in the “phototherapeutic window”. As a proof of concept, we showed our phototrigger for the release of two different anticancer drugs in the NIR region.

Organic Letters published new progress about 2960-93-2. 2960-93-2 belongs to naphthyridine, auxiliary class Naphthalene,Ether,Other MOF ligands,Organic ligands for MOF materials, name is 2,2′-Dimethoxy-1,1′-binaphthalene, and the molecular formula is C22H18O2, Application of 2,2′-Dimethoxy-1,1′-binaphthalene.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Svejstrup, Thomas D. published the artcileSynthesis of Arylamines via Aminium Radicals, Name: 2,2′-Dimethoxy-1,1′-binaphthalene, the publication is Angewandte Chemie, International Edition (2017), 56(47), 14948-14952, database is CAplus and MEDLINE.

Arylamines constitute the core structure of many therapeutic agents, agrochems., and organic materials. The development of methods for the efficient and selective construction of these structural motifs from simple building blocks is desirable but still challenging. We demonstrate that protonated electron-poor O-aryl hydroxylamines give aminium radicals in the presence of Ru(bpy)₃Cl₂. These highly electrophilic species undergo polarized radical addition to aromatic compounds in high yield and selectivity. We successfully applied this method to the late-stage modification of chiral catalyst templates, therapeutic agents, and natural products.

Angewandte Chemie, International Edition published new progress about 2960-93-2. 2960-93-2 belongs to naphthyridine, auxiliary class Naphthalene,Ether,Other MOF ligands,Organic ligands for MOF materials, name is 2,2′-Dimethoxy-1,1′-binaphthalene, and the molecular formula is C13H10O3, Name: 2,2′-Dimethoxy-1,1′-binaphthalene.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Zuo, Zongyan published the artcileSpiro-substitution effect of terfluorenes on amplified spontaneous emission and lasing behaviors, SDS of cas: 159-62-6, the publication is Journal of Materials Chemistry C: Materials for Optical and Electronic Devices (2018), 6(16), 4501-4507, database is CAplus.

In order to investigate the inherent differences between spirofluorenes, two typical spirocycle models, spiro[fluorene-9,9′-xanthene] (SFX) and spirobiflourene (SBF), were chosen to construct four spiro-terfluorenes (DSFX-OSFX, DSBF-OSFX, DOSFX-SFX and DOSFX-SBF) to investigate the effect of spirocycle substitution on photophys. and stimulated emission properties. The terfluorenes have similar absorption and photoluminescence properties. While the DOSFX-SBF film displays the best ASE properties with a threshold of 1.81 μJ cm^-2, the lasing threshold of the 1-D DFB laser based on DOSFX-SBF is lowered to 0.85 μJ cm^-2. These results indicate that the type of spirofluorene has a dramatic influence on stimulated emission properties and spiro terfluorenes have potential applications in organic lasers.

Journal of Materials Chemistry C: Materials for Optical and Electronic Devices published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C13H15NO6S, SDS of cas: 159-62-6.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Wood, Natasha C. L. published the artcileMediated electron transfer from lithium investigated voltammetrically in tetrahydrofuran: why are some mediators more effective reducing reagents than others?, SDS of cas: 2960-93-2, the publication is Journal of Physical Organic Chemistry (2007), 20(10), 732-742, database is CAplus.

A study of a range of aromatic mols. was studied electrochem. to determine what makes an effective reducing mediator. With the aim of developing a better understanding of electron transfers (ETs) mediated from Li in functional group reduction, single ET reactions are reported. Typical reaction conditions involved the use of aromatic mediators such as naphthalene, anthracene, 4,4′-di-tert-butyl-1,1′-biphenyl (DBB) with Li metal in THF at -78°. The results of these experiments showed that some mediators were more effective reducing reagents than others. Cryoelectrochem. procedures are used to mimic the conditions of the SET (single electron transfer) reactions to study the exact nature and role of the mediator formed upon ET. Electrogenerated and stabilized radical anions of anthracene at -78° mediate the reduction of organic substrates, whereas the more reactive dianion is quickly protonated and therefore unable to act as an ET reagent; direct electrochem. reduction of the sulfide, Ph 3-phenylpropyl sulfide (RSPh) gives the thiol, thiophenol, and propylbenzene whereas mediated reduction gives the dimer, di-Ph disulfide and Pr benzene. The possibility to selectively reduce a substrate with either a single electron or with 2 electrons is possible by using either the radical anion (mediated) or via the direct electroreduction DBB and naphthalene (both single electron accepting species only) are the most effective reducing reagents. Anthracene and other 2-electron accepting species only showed effective reducing ability when a stoichiometric amount of Li was used therefore preventing the over-reduction to the dianion.

Journal of Physical Organic Chemistry published new progress about 2960-93-2. 2960-93-2 belongs to naphthyridine, auxiliary class Naphthalene,Ether,Other MOF ligands,Organic ligands for MOF materials, name is 2,2′-Dimethoxy-1,1′-binaphthalene, and the molecular formula is C18H21BO4, SDS of cas: 2960-93-2.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Park, Gyoosoon published the artcileH-bonding controls the regioselectivities on the acid-catalyzed reaction of fluorenone with phenol derivatives, Product Details of C25H16O, the publication is Bulletin of the Korean Chemical Society (2010), 31(7), 1837-1838, database is CAplus.

The usefulness of the acid-catalyzed reaction of fluorenone with phenol derivatives and the regio-control elements in the process were studied. All ab initio calculations were also carried out. The hydrogen-bonding decisively reveals in the ortho-product. Thus a relative stability of PD-a-OH attributes to intramol. hydrogen-bonding.

Bulletin of the Korean Chemical Society published new progress about 159-62-6. 159-62-6 belongs to naphthyridine, auxiliary class Other Aromatic Heterocyclic,Spiro, name is Spiro[fluorene-9,9′-xanthene], and the molecular formula is C25H16O, Product Details of C25H16O.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem