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4277-32-1

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4277-32-1 Usage

Description

(1R,2R)-Cyclooctane-1,2-diol is a cyclic diol with the molecular formula C8H16O2, featuring two hydroxyl groups (OH) attached to a cyclooctane ring. As a chiral compound, it exhibits two non-superimposable mirror image forms, known as enantiomers. Its unique structure and chiral nature render it a valuable component in organic synthesis.

Uses

Used in Pharmaceutical Synthesis:
(1R,2R)-Cyclooctane-1,2-diol is utilized as a chiral building block for the synthesis of pharmaceuticals, contributing to the production of enantiopure compounds that are essential for ensuring the desired therapeutic effects and minimizing potential side effects.
Used in Agrochemical Production:
In the agrochemical industry, (1R,2R)-Cyclooctane-1,2-diol serves as a chiral building block, aiding in the synthesis of enantiomerically pure agrochemicals to enhance their efficacy and reduce environmental impact.
Used in Fine Chemicals Synthesis:
(1R,2R)-Cyclooctane-1,2-diol is employed as a chiral building block in the synthesis of various fine chemicals, leveraging its unique structure to create high-quality specialty products.
Used as a Chiral Resolving Agent:
(1R,2R)-Cyclooctane-1,2-diol has potential applications as a chiral resolving agent, playing a crucial role in the separation of enantiomers, which is vital for the development of pure enantiomer compounds in various industries.
Used in the Development of Chiral Catalysts:
As a precursor, (1R,2R)-Cyclooctane-1,2-diol contributes to the development of new chiral catalysts for asymmetric synthesis reactions, facilitating the creation of enantiomerically pure products with high selectivity and efficiency.

Check Digit Verification of cas no

The CAS Registry Mumber 4277-32-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,7 and 7 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 4277-32:
(6*4)+(5*2)+(4*7)+(3*7)+(2*3)+(1*2)=91
91 % 10 = 1
So 4277-32-1 is a valid CAS Registry Number.

4277-32-1Relevant articles and documents

Catalytic oxygen atom transfer promoted by tethered Mo(VI) dioxido complexes onto silica-coated magnetic nanoparticles

Colaiezzi, Roberta,Crucianelli, Marcello,Di Giuseppe, Andrea,Ferella, Francesco,Lazzarini, Andrea,Paolucci, Valentina

, (2021/11/30)

The preparation of three novel active and stable magnetic nanocatalysts for the selective liquid-phase oxidation of several olefins, has been reported. The heterogeneous systems are based on the coordination of cis-MoO2 moiety onto three different SCMNP@Si-(L1-L3) magnetically active supports, functionalized with silylated acylpyrazolonate ligands L1, L2 and L3. Nanocatalysts thoroughly characterized by ATR-IR spectroscopy, TGA and ICP-MS analyses, showed excellent catalytic performances in the oxidation of conjugated or unconjugated olefins either in organic or in aqueous solvents. The good magnetic properties of these catalytic systems allow their easy recyclability, from the reaction mixture, and reuse over five runs without significant decrease in the activity, either in organic or water solvent, demonstrating their versatility and robustness.

A stand-alone cobalt bis(dicarbollide) photoredox catalyst epoxidates alkenes in water at extremely low catalyst load

Guerrero, Isabel,Romero, Isabel,Teixidor, Francesc,Vi?as, Clara

supporting information, p. 10123 - 10131 (2021/12/27)

The cobalt bis(dicarbollide) complex, Na[3,3′-Co(η5-1,2-C2B9H11) (Na[1]), is an effective photoredox catalyst for the oxidation of alkenes to epoxides in water. Advantageous features of Na[1] include its lack of photoluminescence, high solubility and surfactant behavior in aqueous media, as well as the donor ability of the carborane ligand and high oxidizing power of the Co4+/3+ couple. These features differentiate it from the well-known and widely used photosensitizer tris (2,2′-bipyridine) ruthenium(ii) ([Ru(bpy)3]2+), which also participates in electron transfer through an outer sphere mechanism. A comparison of the catalytic performance of [Ru(bpy)3]2+ with Na[1] for alkene photo-oxidation is fully in favor of Na[1], as the former shows very low or null efficiency. With a catalyst loading of 0.1 mol% conversions between 65-97% have been obtained in short reaction times, 15 minutes, with moderate selectivity for the corresponding epoxide, due to the formation of side products as diols. But when the catalyst loading is reduced to 0.01 mol%, the selectivity for the corresponding epoxide increased considerably, being the only compound formed after 15 minutes of reaction (selectivity >99%). High TON values have been obtained (TON = 8500) for the epoxidation of aromatic and aliphatic alkenes in water. We have verified that Na[3,3′-Co(η5-1,2-C2B9H11)2] acts as a photocatalyst in both the epoxidation of alkenes and in their hydroxylation in aqueous medium with a higher rate for epoxidation than for hydroxylation. Preliminary photooxidation tests using methyl oleate as the substrate led to the selective epoxidation of the double bond. These results represent a promising starting point for the development of practical methods for the processing of unsaturated fatty acids, such as the valorisation of animal fat waste using this sustainable photoredox catalyst. This journal is

Double end-on azido derivative of a tridentate (NNO) Schiff base dimeric copper(II) complex: synthesis, X-ray structure, magnetic property and catalytic effectiveness

Chowdhury, Habibar,Bera, Rajesh,Rizzoli, Corrado,Adhikary, Chandan

, p. 3062 - 3078 (2020/10/29)

A dimeric copper(II) complex, bis{(2-[1-(aminoethylimino)ethyl]-phenoxo}-di-μ1,1-azido-dicopper(II), [Cu2(L)2(μ2-1,1-N3)2] (1) [L = 2-[1-(aminoethylimino)ethyl]-phenoxo ion], has been isolated using a self-assembly reaction using a 1:1:1 molar ratio of Cu(NO3)2·3H2O, HL and NaN3 in methanol at room temperature and characterized through X-ray diffraction analysis and spectroscopic studies. X-ray structural analysis reveals that 1 consists of two distinct dinuclear molecular units, where each copper(II) center in the individual dinuclear unit adopts a distorted square pyramidal geometry with a CuN4O chromophore ligated through a tridentate (NNO) Schiff base and two N atoms of two different bridging azides in μ1,1-mode. Two Cu(II) centers are linked through double μ2-1,1-N3 bridges to form the dinuclear unit [Cu2(L)2(μ2-1,1-N3)2]. In the crystalline state, the dinuclear units in 1 are associated through weak intermolecular N-H?O hydrogen bonds to afford a 2-D sheet structure viewed along the crystallographic a-axis. The small magnitude of the antiferromagnetic interaction (J = –0.45 cm?1) is a result of the long Cu···Cu separation (3.205(2) ?). The catalytic efficacy of 1 was studied in a series of solvents for the epoxidation of alkenes using tert-butyl-hydroperoxide (TBHP) as an efficient oxidant under mild conditions.

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