Tag: M.W:200-300

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.Tan, Qitao; Wang, Yunying; Li, Daliang; Wen, Jiwu; You, Tianpa researched the compound: (1S,3R)-1,2,2-Trimethylcyclopentane-1,3-dicarboxylic acid( cas:560-09-8 ).Safety of (1S,3R)-1,2,2-Trimethylcyclopentane-1,3-dicarboxylic acid.They published the article 《A novel and efficient synthesis of camphorquinone from camphoric acid》 about this compound( cas:560-09-8 ) in Synthesis. Keywords: camphorquinone preparation. We’ll tell you more about this compound (cas:560-09-8).

Camphorquinone, an important fine chem. and medicinal product derived from camphor, was efficiently synthesized from easily available camphoric acid. The key steps include acyloin condensation using Me3SiCl as a scavenger of alkoxides and oxidation of the bis(trimethylsilyl) derivative by bromine in CCl4. The new method offers an efficient alternative synthesis of camphorquinone.

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Reference:
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com

Application of 560-09-8. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: (1S,3R)-1,2,2-Trimethylcyclopentane-1,3-dicarboxylic acid, is researched, Molecular C10H16O4, CAS is 560-09-8, about HPLC detection and evaluation of chiral compounds with a laser-based chiroptical detector. Author is Liu, Yan-Song; Yu, Tim; Armstrong, Daniel W..

The sensitivity and ruggedness of chiroptical detectors have improved considerably during the past decade. The authors examine >230 chiral compounds using the latest laser-based polarimetry detector for HPLC. They also examine the relation between optical rotation at the detector wavelength of 675 nm and the sodium D line. The authors consider the sensitivity, linear dynamic range, and effect of solvent composition on rotation and its general use as an HPLC detector for chiral compounds

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Reference:
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 560-09-8, is researched, Molecular C10H16O4, about Liquid-Phase Epitaxial Growth of Azapyrene-Based Chiral Metal-Organic Framework Thin Films for Circularly Polarized Luminescence, the main research direction is LPE azapyrene chiral metalorganic framework film circularly polarized luminescence; epitaxy liquid phase azapyrene chiral metalorganic framework polarized luminescence; circularly polarized luminescence; enantioselective adsorption; homochiral; layer by layer; liquid-phase epitaxial growth; metal−organic framework; oriented film.Electric Literature of C10H16O4.

Development of chiral metal-organic frameworks (MOFs) for circularly polarized luminescence (CPL) is a challenging but important task. An example of azapyrene-based chiral MOF thin films [Zn2Cam2DAP]n grown on functionalized substrates (named SURchirMOF-4) for CPL property is reported. By using a liquid-phase epitaxial layer-by-layer method, the resulted SURchirMOF-4 was constructed from chiral camphoric acid and 2,7-diazapyrene ligand, which has high orientation and homogeneity. The CD, CPL, and enantioselective adsorption results show that SURchirMOF-4 has strong chirality and CPL property as well as good enantioselective adsorption toward enantiomers of Me-lactate. The synthesis of azapyrene-based chiral MOF thin films not only represents an ideal model for studying the enantioselective adsorption, but also will be a valuable approach for development of the chiral thin film exhibiting CPL property.

The article 《Liquid-Phase Epitaxial Growth of Azapyrene-Based Chiral Metal-Organic Framework Thin Films for Circularly Polarized Luminescence》 also mentions many details about this compound(560-09-8)Electric Literature of C10H16O4, you can pay attention to it, because details determine success or failure

Reference:
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: (1S,3R)-1,2,2-Trimethylcyclopentane-1,3-dicarboxylic acid( cas:560-09-8 ) is researched.Related Products of 560-09-8.Zhang, Jian; Chen, Shumei; Zingiryan, Areg; Bu, Xianhui published the article 《Integrated Molecular Chirality, Absolute Helicity, and Intrinsic Chiral Topology in Three-Dimensional Open-Framework Materials》 about this compound( cas:560-09-8 ) in Journal of the American Chemical Society. Keywords: cobalt camphorate homochiral polymeric complex preparation structure; nickel camphorate homochiral polymeric complex preparation structure; benzenedicarboxylate cobalt camphorate trimethylenedipyridine polymeric complex preparation structure; indium camphorate homochiral polymeric complex preparation structure; magnesium malate polymeric complex preparation structure; crystal structure metal camphorate malate polymeric complex; chirality metal camphorate malate polymeric complex. Let’s learn more about this compound (cas:560-09-8).

While chiral materials are common, few are known that integrate mol. chirality, absolute helicity, and 3-dimensional intrinsically chiral topol. nets in one material. Such multihomochiral features may lead to enhanced chiral recognition processes that are important for enantioselective catalysis or separation Reported here are 3-dimensional open-framework materials with unusual integration of various homochiral and homohelical features, even in the bulk sample. Thus, Me4N[InL2]·2H2O (H2L = D- and L-camphoric acid (Hcam)), (Me3NCH2CH2OH)[In(D-cam)2]·2H2O, Co(D-cam)1/2(bdc)1/2(tmdpy) (H2dbc = 1,4-benzenedicarboxylic acid; tmdpy = 4,4′-trimethylenedipyridine). Ni(D-cam)(H2O)2 and Mg(L-ma)(H2O)2·H2O (L-maH2 = L-malic acid) were prepared and their crystal structures determined

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Reference:
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com

Recommanded Product: 560-09-8. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: (1S,3R)-1,2,2-Trimethylcyclopentane-1,3-dicarboxylic acid, is researched, Molecular C10H16O4, CAS is 560-09-8, about Homochiral ferroelectric three-dimensional cadmium(II) frameworks from racemic camphoric acid and 3,5-di(imidazol-1-yl)benzoic acid. Author is Su, Zhi; Lv, Gao-Chao; Fan, Jian; Liu, Guang-Xiang; Sun, Wei-Yin.

Two three-dimensional (3D) chiral frameworks, [Cd6(L)4(D-Cam)4(H2O)4]·2H2O (1D) and [Cd6(L)4(L-Cam)4(H2O)4]·2H2O (1L) [HL = 3,5-di(imidazol-1-yl)benzoic acid, D-H2Cam = D-camphoric acid, L-H2Cam = L-camphoric acid], were synthesized under hydrothermal conditions, which represent a nice example of enantioselectivity of organic racemic ligands (DL-camphorates) during the self-assembly process and formation of the metal complexes. Compounds 1D and 1L feature 3-dimensional framework with chiral chains constructed by Cd(II) cations and camphorate anions. Solid-state CD spectra of 1D and 1L revealed that they are enantiomers. Also, the complexes with chiral C2 space group display ferroelec. behavior with a remnant elec. polarization (Pr) of ∼0.140 μC/cm2 and an elec. coercive field (Ec) of ∼17.11 kV/cm.

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Reference:
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com

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.Zhang, Jian; Chen, Shumei; Nieto, Ruben A.; Wu, Tao; Feng, Pingyun; Bu, Xianhui researched the compound: (1S,3R)-1,2,2-Trimethylcyclopentane-1,3-dicarboxylic acid( cas:560-09-8 ).Safety of (1S,3R)-1,2,2-Trimethylcyclopentane-1,3-dicarboxylic acid.They published the article 《A Tale of Three Carboxylates: Cooperative Asymmetric Crystallization of a Three-Dimensional Microporous Framework from Achiral Precursors》 about this compound( cas:560-09-8 ) in Angewandte Chemie, International Edition. Keywords: manganese formate adamantanedicarboxylate polymer preparation chirality camphoric glutamic; crystal structure manganese formate adamantanedicarboxylate chirality induction; gas adsorption manganese formate adamantanedicarboxylate polymer complex. We’ll tell you more about this compound (cas:560-09-8).

Sym. crystallization of 3D porous materials constructed entirely from achiral building blocks by using enantiopure organic acids or amino acids as chirality-inducing agents is reported. Thus, the presence of D-camphor led to (+)-Mn3(HCOO)4(adc) (adc = 1,3-adamantanedicarboxylate), while L-camphor resulted in (-)-Mn3(HCOO)4(adc), which were characterized by x-ray crystallog. The chiral induction agent is essential to initiate the nucleation of the chiral crystals. The chirality control seems to be achieved through cooperative binding between enantiopure chiral reagents and achiral structural building units. Enantiopure chiral reagents control the absolute chirality of the crystals by participating in the nucleation and crystallization processes, but are later replaced with achiral ligands in the resulting crystals.

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Reference:
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com

Usami, Atsushi; Motooka, Ryota; Miyazawa, Mitsuo published an article about the compound: (1S,3R)-1,2,2-Trimethylcyclopentane-1,3-dicarboxylic acid( cas:560-09-8,SMILESS:CC1(C)[C@@H](CC[C@]1(C)C(O)=O)C(O)=O ).Related Products of 560-09-8. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:560-09-8) through the article.

To clarify the structures of biotransformation products and metabolic pathways, the biotransformation of monoterpenoids, (+)- and (-)-camphorquinone (1a and b), has been investigated using Aspergillus wentii as a biocatalyst. Compound 1a was converted to (-)-(2S)-exo-hydroxycamphor (2a), (-)-(2S)-endo-hydroxycamphor (3a), (-)-(3S)-exo-hydroxycamphor (4a), (-)-(3S)-endo-hydroxycamphor (5a), and (+)-camphoric acid (6a). Compound 1b was converted to (+)-(2R)-exo-hydroxycamphor (2b), (+)-(2R)-endo-hydroxycamphor (3b), (+)-(3R)-exo-hydroxycamphor (4b), (+)-(3R)-endo-hydroxycamphor (5b), and (-)-camphoric acid (6b). Compound 1a mainly produced 2a (65.0%) with stereoselectivity, whereas 1b afforded 3b (84.3%) with high stereoselectivity. These structures were confirmed by gas chromatog.-mass spectrometry, IR, 1H NMR (NMR), and 13C NMR spectral data. The products illustrate the marked ability of A. wentii for enzymic oxidation and ketone reduction

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Reference:
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com

Related Products of 560-09-8. 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: (1S,3R)-1,2,2-Trimethylcyclopentane-1,3-dicarboxylic acid, is researched, Molecular C10H16O4, CAS is 560-09-8, about Synthesis of 1,11,11-trimethyl-3,6-diazatricyclo [6.2.1.02,7]undeca-2,6-diene and 1,15,15-trimethyl-3,10-diazatetracyclo[10.2.1.02,11.04,9]pentadeca-2,4(9),5,7,10-pentaene from camphoroquinone enantiomers. Author is Adamenko, E. N.; Frolova, L. L.; Panteleeva, M. V.; Kuchin, A. V..

Optically active camphordihydro-2,3-pyrazine and camphorquinoxaline were prepared from camphoroquinone enantiomers. It was shown that (1S,4R)-(+)-camphoroquinone was formed by oxidation of (1S,3R, 4R)-(-)-3-bromocamphor and (1R,4S)-(-)-camphoroquinone from (1R,3S, 4S)-(+)-3-bromocamphor, resp. Camphor anhydride was a side product (6-10%) of the reaction.

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Reference:
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com

Application In Synthesis of (1S,3R)-1,2,2-Trimethylcyclopentane-1,3-dicarboxylic acid. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: (1S,3R)-1,2,2-Trimethylcyclopentane-1,3-dicarboxylic acid, is researched, Molecular C10H16O4, CAS is 560-09-8, about Synthesis, crystal structure and photoluminescent property of a 2D cadmium complex constructed by 4,4′-bis(benzimidazol-1-ylmethyl)biphenyl and camphoric acid ligands. Author is Tao, Zhao-Lin; Qin, Ling; Zheng, He-Gen.

A 2-dimensional complex [Cd(bbmb)(CAM)]n, based on a semi-rigid N-containing ligand bbmb (bbmb = 4,4′-bis(benzimidazol-1-ylmethyl)biphenyl) and H2CAM (H2CAM = camphoric acid) was synthesized by hydrothermal method and characterized by IR spectra, elemental anal., PXRD, TGA, and the crystal structure was determined by single-crystal x-ray diffraction. The complex crystallizes in the orthorhombic system, space group P212121, and features a two-dimensional (2D) layer structure. Second harmonic generation efficiency and fluorescence of the complex are also further studied. This complex has a 2nd harmonic generation response and good fluorescence property, which can be used as a 2nd-order nonlinear optical material and a potential fluorescence material.

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Reference:
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com

Application In Synthesis of (1S,3R)-1,2,2-Trimethylcyclopentane-1,3-dicarboxylic acid. 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: (1S,3R)-1,2,2-Trimethylcyclopentane-1,3-dicarboxylic acid, is researched, Molecular C10H16O4, CAS is 560-09-8, about Liquid-phase epitaxial growth of a homochiral MOF thin film on poly(L-DOPA) functionalized substrate for improved enantiomer separation. Author is Gu, Zhi-Gang; Fu, Wen-Qiang; Wu, Xin; Zhang, Jian.

A homochiral MOF film grown on a functionalized substrate in a capillary column with high orientation and homogeneity was successfully prepared by using a layer-by-layer liquid phase epitaxial method; by introducing self-polymerized 3,4-dihydroxy-L-phenylalanine (poly(L-DOPA)) as a chiral substrate, the obtained enantiopure substrate mounted homochiral MOF thin film showed improved enantiomer separation

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Reference:
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com