Tag: 200-300

Recommanded Product: 2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolaneOn September 9, 2019 ,《Nickel-Catalyzed C(sp2)-H Borylation of Arenesã€?was published in Organometallics. The article was written by Das, Arpan; Hota, Pradip Kumar; Mandal, Swadhin K.. The article contains the following contents:

In this study, C(sp2)-H borylation of arenes was accomplished by a nickel catalyst, resulting in good yield. Alkyl and alkoxy arenes were successfully functionalized, affording C(sp2)-H borylated compounds It was unraveled that the well-defined abnormal N-heterocyclic carbene based Ni(II) complex breaks into Ni nanoparticles (Ni-NPs), which act as catalytically active species. A series of controlled reactions under stoichiometric conditions along with spectroscopic studies and single-crystal x-ray crystallog. study helped us to understand the formation of Ni-NPs along with formation of a boron(III) compound during this reaction. After reading the article, we found that the author used 2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 401797-00-0Recommanded Product: 2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane)

2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 401797-00-0) belongs to hydroxy-containing compounds. Hydroxy groups participate in the dehydration reactions that link simple biological molecules into long chains.Recommanded Product: 2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane The joining of a fatty acid to glycerol to form a triacylglycerol removes the −OH from the carboxy end of the fatty acid.

Referemce:
Alcohol – Wikipedia,
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SDS of cas: 20880-92-6On September 3, 2021 ,《Nickel-Catalyzed Arylation of C(sp3)-O Bonds in Allylic Alkyl Ethers with Organoboron Compoundsã€?was published in Organic Letters. The article was written by Li, Xiaowei; Li, Yuxiu; Zhang, Zhong; Shi, Xiaolin; Liu, Ruihua; Wang, Zemin; Li, Xiangqian; Shi, Dayong. The article contains the following contents:

A nickel-catalyzed cross-coupling of allylic alkyl ethers with organoboron compounds through the cleavage of the inert C(sp3)-O(alkyl) bonds is described. Several types of allylic alkyl ethers can be coupled with various boronic acids or their derivatives to give the corresponding products in good to excellent yields with wide functional group tolerance and excellent regioselectivity. The gram-scale reaction and late-stage modification of biol. active compounds further prove the practicality of this synthetic method. In the experimental materials used by the author, we found ((3aS,5aR,8aR,8bS)-2,2,7,7-Tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4′,5′-d]pyran-3a-yl)methanol(cas: 20880-92-6SDS of cas: 20880-92-6)

((3aS,5aR,8aR,8bS)-2,2,7,7-Tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4′,5′-d]pyran-3a-yl)methanol(cas: 20880-92-6) is a useful reactant for examining the effectiveness of sulfamate and sulfamide groups for the inhibition of carbonic anhydrase-​II (CA-​II)â€?SDS of cas: 20880-92-6 And it is used as chiral auxiliaries in Michael and Aldol addition reactions.

Referemce:
Alcohol – Wikipedia,
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《Luminescent tungsten(VI) complexes as photocatalysts for light-driven C-C and C-B bond formation reactionsã€?was written by Yu, Daohong; To, Wai-Pong; Tong, Glenna So Ming; Wu, Liang-Liang; Chan, Kaai-Tung; Du, Lili; Phillips, David Lee; Liu, Yungen; Che, Chi-Ming. SDS of cas: 24388-23-6 And the article was included in Chemical Science in 2020. The article conveys some information:

The realization of photocatalysis for practical synthetic application hinges on the development of inexpensive photocatalysts which can be prepared on a large scale. Herein an air-stable, visible-light-absorbing photoluminescent tungsten(VI) complex which can be conveniently prepared at the gram-scale is described. This complex could catalyze photochem. organic transformation reactions including borylation of aryl halides R1X (X = Cl, Br, I; R1 = 4-[ethoxy(oxo)methane]phenyl, naphthalen-2-yl, 3,5-dimethylphenyl, etc.), reductive coupling of benzyl bromides R2CH2Br (R2 = Ph, 3,4-dimethoxyphenyl, 2-bromophenyl, etc.) for C-C bond formation, reductive coupling of phenacyl bromides R3C(O)CH2Br (R3 = Ph, 4-fluorophenyl, 2-methoxyphenyl, 3,5-bis(trifluoromethyl)phenyl) and decarboxylative coupling of redox-active esters of alkyl carboxylic acid with high product yields and broad functional group tolerance. In the part of experimental materials, we found many familiar compounds, such as 4,4,5,5-Tetramethyl-2-phenyl-1,3,2-dioxaborolane(cas: 24388-23-6SDS of cas: 24388-23-6)

4,4,5,5-Tetramethyl-2-phenyl-1,3,2-dioxaborolane(cas: 24388-23-6) also known as boronate ester, is generally used in metal-catalyzed C-C bond formation reactions like Suzuki–Miyaura reaction.SDS of cas: 24388-23-6

Referemce:
Alcohol – Wikipedia,
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The author of 《All-organic covalent organic framework/polyaniline composites as stable electrode for high-performance supercapacitorsã€?were Liu, Shuai; Yao, Lu; Lu, Yi; Hua, Xiaolin; Liu, Jiaqiang; Yang, Zhi; Wei, Hao; Mai, Yiyong. And the article was published in Materials Letters in 2019. SDS of cas: 34374-88-4 The author mentioned the following in the article:

A novel all-organic composite of covalent organic framework (COF) and polyaniline (PANI) was designed and prepared By combining the highly porous and redox active TpPa-COF and conductive PANI, TpPa-COF@PANI composite electrodes showed greatly improved performance in supercapacitor application. After 30,000 cycles, the capacity retention rate of the battery is as high as 83%, which indicates that the electrode has great cycling stability. The strategy reported in this work may shed light on the design of new redox active COFs based Faradaic supercapacitors and have a great potential for other electrochem. devices.2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde(cas: 34374-88-4SDS of cas: 34374-88-4) was used in this study.

2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde(cas: 34374-88-4) is a member of phloroglucinol derivatives. Regarding monomeric phloroglucinols, this group encompasses acryl phloroglucinols, phloroglucinol-terpene adducts, phloroglucinol glycosides, halogenated phloroglucinols, prenylated phloroglucinols, and cyclicroup polyketides.SDS of cas: 34374-88-4

Referemce:
Alcohol – Wikipedia,
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Application of 63012-03-3On March 20, 2014, Farhadi, Saeed; Jahanara, Kosar published an article in Cuihua Xuebao. The article was 《ZnAl2O4@SiO2 nanocomposite catalyst for the acetylation of alcohols, phenols and amines with acetic anhydride under solvent-free conditionsã€? The article mentions the following:

A ZnAl2O4@SiO2 nanocomposite was prepared from metal nitrates and tetra-Et orthosilicate by the sol-gel process, and characterized by X-ray diffraction, Fourier transform IR, transmission electron microscopy, and N2 adsorption-desorption measurements. The nanocomposite was tested as a heterogeneous catalyst for the acetylation of alcs., phenols, and amines under solvent-free conditions. Under optimized conditions, efficient acetylation of these substrates with acetic anhydride over the ZnAl2O4@SiO2 nanocomposite was obtained. Acetylation of anilines and primary aliphatic amines proceeded rapidly at room temperature, while the reaction time was longer for the acetylation of alcs. and phenols, showing that an amine NH2 group can be selectively acetylated in the presence of alc. or phenolic OH groups. The catalyst can be reused without obvious loss of catalytic activity. The catalytic activity of the ZnAl2O4@SiO2 nanocomposite was higher than that of pure ZnAl2O4. The method gives high yields, and is clean, cost effective, compatible with substrates having other functional groups and it is suitable for practical organic synthesis. The experimental part of the paper was very detailed, including the reaction process of (3-Chlorophenyl)(phenyl)methanol(cas: 63012-03-3Application of 63012-03-3)

(3-Chlorophenyl)(phenyl)methanol(cas: 63012-03-3) belongs to hydroxy-containing compounds. Hydroxy-containing compounds engage in intermolecular hydrogen bonding increasing the electrostatic attraction between molecules and thus to higher boiling and melting points than found for compounds that lack this functional group.Application of 63012-03-3 Organic compounds, which are often poorly soluble in water, become water-soluble when they contain two or more hydroxy groups, as illustrated by sugars and amino acid.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

《A palladium-catalyzed oxidative cross-coupling reaction between aryl pinacol boronates and H-phosphonates in ethanolã€?was published in RSC Advances in 2017. These research results belong to Chen, Te-Hsuan; Reddy, Daggula Mallikarjuna; Lee, Chin-Fa. Formula: C14H21BO2 The article mentions the following:

The first successful oxidative coupling reaction of aryl pinacol boronic esters with H-phosphonates to deliver aryl phosphorous compounds is reported herein. These reactions between aryl boronic reagents and H-phosphonates were carried out synergistically using a Pd catalyst, additive and oxidant. Without using bases and ligands, phosphorylation was accomplished in an environmentally-friendly manner under mild conditions in ethanol. In the part of experimental materials, we found many familiar compounds, such as 2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 401797-00-0Formula: C14H21BO2)

2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 401797-00-0) belongs to hydroxy-containing compounds. Hydroxy-containing compounds engage in intermolecular hydrogen bonding increasing the electrostatic attraction between molecules and thus to higher boiling and melting points than found for compounds that lack this functional group.Formula: C14H21BO2 Organic compounds, which are often poorly soluble in water, become water-soluble when they contain two or more hydroxy groups, as illustrated by sugars and amino acid.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Fu, Xiaoping; Qi, Qingqing; Xu, Shiqing; Negishi, Ei-ichi published an article in 2021. The article was titled 《Chemo- and Stereoselective Dearomative Coupling of Indoles and Bielectrophilic β-Imino Boronic Esters via Imine-Induced 1,2-Boronate Migrationã€? and you may find the article in Organic Letters.Name: Bis[(pinacolato)boryl]methane The information in the text is summarized as follows:

A new imine-induced 1,2-boronate migration was developed for achieving chemo- and stereoselective dearomative coupling of C3-substituted indoles and bielectrophilic β-imino boronic esters, providing rapid access to complex chiral indoline boronic esters with four stereocenters including an all-C quaternary stereocenter and a tertiary α-aminoboronic ester. By contrast, coupling of indoles without C3 substitution and β-imino boronic esters provided tetrahydro-1H-pyrido[4,3-b]indoles via imine-induced 1,2-boronate migration followed by deborylative rearomatization. In the experiment, the researchers used many compounds, for example, Bis[(pinacolato)boryl]methane(cas: 78782-17-9Name: Bis[(pinacolato)boryl]methane)

Bis[(pinacolato)boryl]methane(cas: 78782-17-9) belongs to organoboron compounds. Organoboron compounds have been a cornerstone of synthetic transformations for decades. Areas such as boron-containing catalysts, metalate chemistry, photoredox methods, and boryl anions have brought significant new developments in understanding and provided new reactivity upon.Name: Bis[(pinacolato)boryl]methane

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Vetter, Andrew J.; DiBenedetto, Tarah A.; Ritz, Mikhaila D.; Jones, William D. published their research in Polyhedron in 2021. The article was titled 《The functionalization of benzene by boranes using trispyrazolylborate complexesã€?Category: alcohols-buliding-blocks The article contains the following contents:

The catalytic C-H activation and borylation of arenes by trispyrazolylborate complexes is reported. Trispyrazolylborate Rh and Ir complexes were previously shown to activate a variety of C-H bonds. Here, the authors show the catalytic borylation of arenes by the trispyrazolylborate ethylene complexes Tp’Rh(C2H4)2, and Tp’Ir(C2H4)2. In the part of experimental materials, we found many familiar compounds, such as 4,4,5,5-Tetramethyl-2-phenyl-1,3,2-dioxaborolane(cas: 24388-23-6Category: alcohols-buliding-blocks)

4,4,5,5-Tetramethyl-2-phenyl-1,3,2-dioxaborolane(cas: 24388-23-6) can be used as a substrate in the study of Suzuki–Miyaura coupling of various aryl iodides over SiliaCat Pd(0).Category: alcohols-buliding-blocks

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2019,Organic Letters included an article by Wang, Xiao-Xu; Li, Lei; Gong, Tian-Jun; Xiao, Bin; Lu, Xi; Fu, Yao. HPLC of Formula: 78782-17-9. The article was titled 《Vicinal Diboration of Alkyl Bromides via Tandem Catalysis》. The information in the text is summarized as follows:

Vicinal diboration of alkyl bromides via tandem catalysis is reported. The reported reaction exhibits a broad substrate scope, good functional group compatibility, and regioselectivity. Also, it shows good practicality due to the easy accessibility of alkyl bromides in combination with diverse transformations of diboronates. Mechanism study indicates that terminal alkenes are generated selectively through Ni-catalyzed dehydrohalogenation of alkyl bromides followed by base/MeOH promoted diboration process to provide 1,2-diboration products. The experimental process involved the reaction of Bis[(pinacolato)boryl]methane(cas: 78782-17-9HPLC of Formula: 78782-17-9)

Bis[(pinacolato)boryl]methane(cas: 78782-17-9) belongs to organoboron compounds. Organoboron compounds have been a cornerstone of synthetic transformations for decades. Areas such as boron-containing catalysts, metalate chemistry, photoredox methods, and boryl anions have brought significant new developments in understanding and provided new reactivity upon.HPLC of Formula: 78782-17-9

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2017,Li, Lei; Gong, Tianjun; Lu, Xi; Xiao, Bin; Fu, Yao published 《Nickel-catalyzed synthesis of 1,1-diborylalkanes from terminal alkenes》.Nature Communications published the findings.HPLC of Formula: 78782-17-9 The information in the text is summarized as follows:

Organoboron compounds play an irreplaceable role in synthetic chem. and the related transformations based on the unique reactivity of C-B bond are potentially the most efficient methods for the synthesis of organic mols. The synthetic importance of multiboron compounds in C-C bond formation and function transformation reactions is growing and the related borations of activated or nonactivated alkenes have been developed recently. However, introducing directly two boron moieties into the terminal sites of alkenes giving 1,1-diborylalkanes in a catalytic fashion has not been explored yet. Here authors describe a synthetic strategy of 1,1-diborylalkanes via a Ni-catalyzed 1,1-diboration of readily available terminal alkenes. This methodol. shows high level of chemoselectivity and regioselectivity and can be used to convert a large variety of terminal alkenes, such as vinylarenes, aliphatic alkenes and lower alkenes, to 1,1-diborylalkanes.Bis[(pinacolato)boryl]methane(cas: 78782-17-9HPLC of Formula: 78782-17-9) was used in this study.

Bis[(pinacolato)boryl]methane(cas: 78782-17-9) belongs to organoboron compounds. Organoboron compounds have been a cornerstone of synthetic transformations for decades. Areas such as boron-containing catalysts, metalate chemistry, photoredox methods, and boryl anions have brought significant new developments in understanding and provided new reactivity upon.HPLC of Formula: 78782-17-9

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts