Tag: M.W=150-200

Zu, Pengjiao published the artcileStructure design and performance investigation of 2-mercapto-5-methyl thiadiazole based ionic liquids as lubricants and corrosion inhibitors, Safety of 1-Bromooctane, the publication is Tribology International (2022), 107682, database is CAplus.

2-Mercapto-5-methyl-1,3,4-thiadiazole (MMT) based ionic liquids were synthesized, their corrosion inhibition behavior and tribol. performance were systematically evaluated. Electrochem. experiments showed MMT based ILs exhibited surprising corrosion inhibition efficiencies. The ILs adsorption behavior obeys Langmuir isotherm. Friction tests demonstrated MMT based ILs performed excellent lubrication properties, compared to [BMIM][BF4]. Combining with anal. of SEM and XPS, it can be concluded that the prominent lubrication performance ascribed to the coexistence of adsorption layer and tribo-film. Therefore, versatile ILs designed in this paper have gathered two significant abilities for industrial applications, which are high corrosion inhibiting performance and excellent lubricating properties. This work is instructive for structure design of multifunctional ILs and will promote industrial application of MMT based ILs in the future.

Tribology International published new progress about 111-83-1. 111-83-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromooctane, and the molecular formula is C6H6N2O, Safety of 1-Bromooctane.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Weng, Wei published the artcileSynthesis and electrochemical property of sulfone-functionalized imidazolium ionic liquid electrolytes, Safety of 2-Bromoethyl Methyl Sulfone, the publication is Electrochimica Acta (2013), 392-396, database is CAplus.

Sulfone-functionalized imidazolium ionic liquids were synthesized from direct nucleophilic substitution for the 1st time. Detailed NMR anal. of the products revealed the competition pathways of classic S_N2 substitution and E2 elimination in the synthesis reaction. Impurities from E2 elimination can easily be overlooked during the conventional method of ionic liquid preparation via S_N2 substitution. Initial electrochem. examination of the synthesized ionic liquids shows good compatibility with Li_1.1(Ni_1/3Co_1/3Mn_1/3)_0.9O₂ cathode material.

Electrochimica Acta published new progress about 16523-02-7. 16523-02-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Sulfone,Aliphatic hydrocarbon chain, name is 2-Bromoethyl Methyl Sulfone, and the molecular formula is C6H20Cl2N4, Safety of 2-Bromoethyl Methyl Sulfone.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Fan, Pei published the artcileAcylation of Aryl Halides and α-Bromo Acetates with Aldehydes Enabled by Nickel/TBADT Cocatalysis, Quality Control of 401-55-8, the publication is Organic Letters (2020), 22(10), 3875-3878, database is CAplus and MEDLINE.

In this protocol aryl halides and α-bromo esters were efficiently cross-coupled with an array of aromatic and aliphatic aldehydes under the cooperative catalysis of nickel and tetrabutylammonium decatungstate as a hydrogen-atom-transfer photocatalyst. This method provided a concise approach to a variety of ketones with high compatibility of various functional groups.

Organic Letters published new progress about 401-55-8. 401-55-8 belongs to bromides-buliding-blocks, auxiliary class Fluoride,Bromide,Aliphatic hydrocarbon chain,Ester, name is Ethylbromofluoroacetate, and the molecular formula is C4H6BrFO2, Quality Control of 401-55-8.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Feng, Jian published the artcileCopper-Catalyzed 1,2,5-Trifunctionalization of Terminal Alkynes Using SR as a Transient Directing Group for Radical Translocation, Synthetic Route of 81216-14-0, the publication is Chinese Journal of Chemistry (2022), 40(14), 1667-1673, database is CAplus.

The first Cu-catalyzed 1,2,5-trifunctionalization of abundant terminal alkynes is realized by merging hydrogen atom transfer and traceless directing strategy with SR as a transient group, delivering highly functionalized aldehydes in moderate to excellent yields with broad substrate scope. The synthetic utility of this method was demonstrated by the gram-scale reaction and downstream transformations of the resultant products. Given the high efficient installation of three different functional groups in a single reaction, it can serve as a very attractive method for rapidly assembling complex mols. from readily available starting materials.

Chinese Journal of Chemistry published new progress about 81216-14-0. 81216-14-0 belongs to bromides-buliding-blocks, auxiliary class Linker,PROTAC Linker, name is 7-Bromohept-1-yne, and the molecular formula is C7H11Br, Synthetic Route of 81216-14-0.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Wang, Zi-Lu published the artcileCopper-Catalyzed Anti-Markovnikov Hydrosilylation of Terminal Alkynes, Safety of 7-Bromohept-1-yne, the publication is Organic Letters (2020), 22(19), 7735-7742, database is CAplus and MEDLINE.

A Cu-catalyzed anti-Markovnikov hydrosilylation of alkynes with PhSiH₃ is reported. This reaction represents a notable and efficient example on Cu-catalyzed hydrosilylation of alkynes, which shows excellent recognition between the terminal and internal triple bonds. Various (hetero)aromatic and aliphatic substituted terminal alkynes underwent this reaction to afford the (E)-vinylsilanes in high yields and with excellent regioselectivity.

Organic Letters published new progress about 81216-14-0. 81216-14-0 belongs to bromides-buliding-blocks, auxiliary class Linker,PROTAC Linker, name is 7-Bromohept-1-yne, and the molecular formula is C8H6ClF3, Safety of 7-Bromohept-1-yne.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Wu, Yun published the artcileNickel-Catalyzed Monofluoroalkylation of Arylsilanes via Hiyama Cross-Coupling, Application In Synthesis of 401-55-8, the publication is Organic Letters (2016), 18(21), 5564-5567, database is CAplus and MEDLINE.

The first example of nickel-catalyzed monofluoroalkylation of arylsilanes has been developed with readily available fluoroalkyl halides. This novel transformation has demonstrated high reactivity, broad substrate scope, excellent functional group tolerance, and mild reaction conditions. The selective activation of a relatively inert C-Si bond for slow release of aryl carbanion is the key reason for reducing the amount of arylmetal species, which makes this method more promising for fluorine-containing modification of complex bioactive mols. Mechanistic investigations indicate that a free fluoroalkyl radical is involved in this catalytic cycle.

Organic Letters published new progress about 401-55-8. 401-55-8 belongs to bromides-buliding-blocks, auxiliary class Fluoride,Bromide,Aliphatic hydrocarbon chain,Ester, name is Ethylbromofluoroacetate, and the molecular formula is C6H12O2, Application In Synthesis of 401-55-8.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Wang, Min published the artcileRadical Monofluoroalkylative Alkynylation of Olefins by a Docking-Migration Strategy, HPLC of Formula: 401-55-8, the publication is Angewandte Chemie, International Edition (2019), 58(49), 17646-17650, database is CAplus and MEDLINE.

A radical-mediated monofluoroalkylative alkynylation of alkenes is disclosed for the first time. The reaction demonstrates a remarkably broad substrate scope in which both activated and unactivated alkenes are suitable starting materials. The concurrent addition of an alkynyl and a monofluoroalkyl group onto an alkene proceeds through a docking-migration sequence, affording a vast array of valuable fluoroalkyl-substituted alkynes. Many complex natural products and drug derivatives are readily functionalized, demonstrating that this method can be used for late-stage alkynylation.

Angewandte Chemie, International Edition published new progress about 401-55-8. 401-55-8 belongs to bromides-buliding-blocks, auxiliary class Fluoride,Bromide,Aliphatic hydrocarbon chain,Ester, name is Ethylbromofluoroacetate, and the molecular formula is C9H5ClO4S, HPLC of Formula: 401-55-8.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Wang, Shuaifeng published the artcilePalladium-Catalyzed anti-Selective Fluoroalkylboration of Internal and Terminal Alkynes, Safety of Ethylbromofluoroacetate, the publication is Organic Letters (2018), 20(18), 5631-5635, database is CAplus and MEDLINE.

A Pd-catalyzed anti-stereospecific alkyne fluoroalkylboration, including mono-, di-, and perfluoroalkylboration, has been developed with fluoroalkyl halides and diboron reagents. The reaction is effective for both internal and terminal alkynes. It provides straightforward and streamlined access to functionalized 1,2-fluoroalkylboronated alkenes in a highly regio- and stereocontrolled manner. Preliminary studies suggest that this reaction is enabled by the combination of radical alkylation and metal-catalyzed borylation, thus leading to the realization of three-component trans-carboboration of alkynes for the first time.

Organic Letters published new progress about 401-55-8. 401-55-8 belongs to bromides-buliding-blocks, auxiliary class Fluoride,Bromide,Aliphatic hydrocarbon chain,Ester, name is Ethylbromofluoroacetate, and the molecular formula is C22H12F6O6S2, Safety of Ethylbromofluoroacetate.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Shang, Tianbo published the artcilePhotocatalytic Remote Oxyfluoroalkylation of Heteroalkynes: Regio-, Stereo-, and Site-Selective Access to Complex Fluoroalkylated (Z)-Alkenes, Safety of Ethylbromofluoroacetate, the publication is Organic Letters (2020), 22(9), 3667-3672, database is CAplus and MEDLINE.

A visible-light-induced remote oxyfluoroalkylation, including ketofluoroalkylation and hydroxytrifluoromethylation, of heteroalkynes is developed with DMSO (DMSO) and H₂O as the oxygen source, resp. It provides a facile access to complex fluoroalkylated (Z)-alkenes in satisfactory yields with excellent regio-, stereo-, and site-selectivity. The reaction involves an uncommon vinyl radical-induced intermol. C(sp³)-H functionalization, thus offering a good platform for the development of remote difunctionalization of alkynes.

Organic Letters published new progress about 401-55-8. 401-55-8 belongs to bromides-buliding-blocks, auxiliary class Fluoride,Bromide,Aliphatic hydrocarbon chain,Ester, name is Ethylbromofluoroacetate, and the molecular formula is C6H6BClO3, Safety of Ethylbromofluoroacetate.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Zhang, Yan published the artcileSynthesis of Difluoromethylated and Phosphorated Spiro[5.5]trienones via Dearomative Spirocyclization of Biaryl Ynones, Related Products of bromides-buliding-blocks, the publication is Organic Letters (2018), 20(10), 2988-2992, database is CAplus and MEDLINE.

Copper- or silver-catalyzed cascade radical addition/dearomative spirocyclization of biaryl ynones with fluoroalkyl bromides or diethylphosphite has been realized for the first time. This method provides a novel and step-economical protocol for the divergent synthesis of a wide range of difluoromethylated or monofluoromethylated and phosphorated spiro[5.5]trienones in moderate to high yields.

Organic Letters published new progress about 401-55-8. 401-55-8 belongs to bromides-buliding-blocks, auxiliary class Fluoride,Bromide,Aliphatic hydrocarbon chain,Ester, name is Ethylbromofluoroacetate, and the molecular formula is C10H18O4, Related Products of bromides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary