Category: 403-41-8

Hashimoto, Toru; Ishimaru, Toshiya; Shiota, Keisuke; Yamaguchi, Yoshitaka published the artcile< Bottleable NiCl2(dppe) as a catalyst for the Markovnikov-selective hydroboration of styrenes with bis(pinacolato)diboron>, Reference of 403-41-8, the main research area is nickel dppe complex catalyst Markovnikov hydroboration styrene bispinacolatodiboron.

Although transition-metal-catalyzed hydroboration reactions of alkenes have been extensively studied, only three examples using Ni complexes have been reported so far. In this study, we have examined hydroboration reactions of alkenes using Ni/phosphine complexes. The com. available and bottleable complex NiCl2(dppe) (dppe = 1,2-bis(diphenylphosphino)ethane) serves as a catalyst for the highly Markovnikov-selective hydroboration of styrene derivatives that affords the desired Markovnikov products in high yield.

Chemical Communications (Cambridge, United Kingdom) published new progress about Hydroboration catalysts. 403-41-8 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H9FO, Reference of 403-41-8.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Chardon, Aurelien; Rouden, Jacques; Blanchet, Jerome published the artcile< Borinic Acid Mediated Hydrosilylations: Reductions of Carbonyl Derivatives>, Synthetic Route of 403-41-8, the main research area is borinic acid mediated hydrosilylation reduction ketone aldehyde imine.

4-Fluoro-2-chlorophenylborinic acid acts as a precatalyst in the presence of phenylsilane for the facile reduction of ketones, aldehydes and imines. Notably, synergistic mediation of a tertiary amine was found essential to trigger silicon to boron hydride transfer to generate a key amine-diarylhydroborane Lewis complex.

European Journal of Organic Chemistry published new progress about Aldehydes Role: RCT (Reactant), RACT (Reactant or Reagent). 403-41-8 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H9FO, Synthetic Route of 403-41-8.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Qi, Xinghao; Zheng, Tingting; Zhou, Junhao; Dong, Yanhong; Zuo, Xia; Li, Xiaoyan; Sun, Hongjian; Fuhr, Olaf; Fenske, Dieter published the artcile< Synthesis and Catalytic Activity of Iron Hydride Ligated with Bidentate N-Heterocyclic Silylenes for Hydroboration of Carbonyl Compounds>, HPLC of Formula: 403-41-8, the main research area is iron silylene amidine supported hydride complex preparation hydroboration catalyst; aldehyde ketone hydroboration pinacolboronate preparation alc iron silylene catalyst; crystal structure iron silylene amidine supported hydride complex; mol structure iron silylene amidine supported hydride complex.

We report the synthesis of a novel bidentate N-heterocyclic silylene (NHSi) ligand, N-(LSi:)-N-methyl-2-pyridinamine (1) (L = PhC(NtBu)2), and the first bischelate disilylene iron hydride I, [(Si,N)(Si,C)Fe(H)(PMe3)] (2, R = tBu), and monosilylene iron hydride, [(Si,C)Fe(H)(PMe3)3] (2′), through Csp2-H activation of the NHSi ligand. Compounds 1 and 2 were fully characterized by spectroscopic methods and single-crystal X-ray diffraction anal. D. functional theory calculations indicated the multiple-bond character of the Fe-Si bonds and the π back-donation from Fe(II) to the Si(II) center. Moreover, the strong donor character of ligand 1 enables 2 to act as an efficient catalyst for the hydroboration reaction of carbonyl compounds at room temperature Chemoselective hydroboration is attained under these conditions. This might be the first example of hydroboration of ketones and aldehydes catalyzed by a silylene hydrido iron complex. A catalytic mechanism was suggested and partially exptl. verified.

Organometallics published new progress about Aldehydes Role: RCT (Reactant), RACT (Reactant or Reagent). 403-41-8 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H9FO, HPLC of Formula: 403-41-8.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Chen, Zewei; Lv, Kang; Yuan, Taoyue; Zhang, Xuguang; Yao, Weiwei; Ma, Mengtao published the artcile< Electrochemical hydroboration of carbonyl compounds>, Computed Properties of 403-41-8, the main research area is aryl alkyl alc preparation; boronic ester preparation regioselective green chem hydrolysis; carbonyl compound tetramethyl dioxaborolane electrochem hydroboration.

A green and sustainable electrochem. hydroboration of carbonyl compounds RC(O)R1 (R = Bu, Ph, cyclohexyl, pyridin-4-yl, etc.; R1 = H, Me, Ph, i-Pr, 2-fluorophenyl) with HBpin has been reported for the first time. Under catalyst-free and additive-free mild reaction conditions the corresponding boronic esters RR1CHOBpin were obtained in excellent yields via the simple electrochem. hydroboration of various aldehydes and ketones with HBpin at room temperature The scale-up reaction demonstrated potential practical applications. A plausible reaction mechanism was proposed based on the corresponding deuterium-labeling, radical inhibition and cyclic voltammetry experiments

Dalton Transactions published new progress about Aldehydes Role: RCT (Reactant), RACT (Reactant or Reagent). 403-41-8 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H9FO, Computed Properties of 403-41-8.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Hu, Wenkang; Zhang, Yilin; Zhu, Haiyan; Ye, Dongdong; Wang, Dawei published the artcile< Unsymmetrical triazolylnaphthyridinylpyridine bridged highly active copper complexes supported on reduced graphene oxide and their application in water>, SDS of cas: 403-41-8, the main research area is copper triazolylnaphthyridinylpyridine complex preparation catalyst.

A novel unsym. triazolylnaphthyridinylpyridine ligand was designed and synthesized, and employed in the synthesis of a heterogeneous copper complex on reduced graphene oxide. The resulting copper composite was characterized by SEM, TEM, XPS and energy dispersive x-ray spectroscopy (EDX). This supported copper catalyst containing unsym. triazolylnaphthyridinylpyridine (only 0.1 mol%) showed excellent catalytic activity in water with good recyclability. Various functionalized quinoline derivatives were successfully synthesized in high yields through the green strategy in water. Other heterocyclic compounds, such as pyridine, 2-(pyridin-2-yl)quinoline, 1,8-naphthyridine, 5,6-dihydronaphtho[1,2-b][1,8]naphthyridine and 2-(pyridin-2-yl)-1,8-naphthyridine derivatives, were achieved in water with >80% yields. Mechanism studies revealed that this transformation occurs via dehydrogenation, condensation, and transfer hydrogenation and dehydrogenation processes which was supported by a deuterium labeling experiment

Green Chemistry published new progress about Catalysts. 403-41-8 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H9FO, SDS of cas: 403-41-8.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Waiba, Satyadeep; Jana, Sayan K.; Jati, Ayan; Jana, Akash; Maji, Biplab published the artcile< Manganese complex-catalysed α-alkylation of ketones with secondary alcohols enables the synthesis of β-branched carbonyl compounds>, Computed Properties of 403-41-8, the main research area is aryl ketone secondary alc manganese complex alkylation; carbonyl compound preparation.

Herein, β-branched carbonyl compounds were synthesized via the α-alkylation of ketones with secondary alcs. under “”borrowing hydrogen”” catalysis. A wide range of secondary alcs., including various cyclic, acyclic, sym., and unsym. alcs., was successfully applied under the developed reaction conditions. A manganese(I) complex bearing a phosphine-free multifunctional ligand catalyzed the reaction and produced water as the sole byproduct.

Chemical Communications (Cambridge, United Kingdom) published new progress about Alkylation. 403-41-8 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H9FO, Computed Properties of 403-41-8.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Cabeza, Javier A.; Fernandez-Colinas, Jose M.; Garcia-Alvarez, Joaquin; Garcia-Alvarez, Pablo; Laglera-Gandara, Carlos J.; Ramos-Martin, Marina published the artcile< Dipyrromethane-Based PGeP Pincer Germyl Rhodium Complexes>, SDS of cas: 403-41-8, the main research area is crystal structure mol dipyrromethane pincer germyl rhodium complex preparation; dipyrromethane pincer germyl rhodium complex hydroboration catalyst styrene catecholborane; PGeP pincers; germylenes; hydroboration; pincer complexes; rhodium.

A family of germyl rhodium complexes derived from the PGeP germylene 2,2′-bis(di-isopropylphosphinylmethyl)-5,5′-dimethyldipyrromethane-1,1′-diylgermanium(II), Ge(pyrmPiPr2)2CMe2 (1), has been prepared Germylene 1 reacted readily with [RhCl(PPh3)3] and [RhCl(cod)(PPh3)] (cod=1,5-cyclooctadiene) to give, in both cases, the PGeP-pincer chloridogermyl rhodium(I) derivative [Rh{κ3P,Ge,P-GeCl(pyrmPiPr2)2CMe2}(PPh3)] (2). Similarly, the reaction of 1 with [RhCl(cod)(MeCN)] afforded [Rh{κ3P,Ge,P-GeCl(pyrmPiPr2)2CMe2}(MeCN)] (3). The methoxidogermyl and methylgermyl rhodium(I) complexes [Rh{κ3P,Ge,P-GeR(pyrmPiPr2)2CMe2}(PPh3)] (R=OMe, 4; Me, 5) were prepared by treating complex 2 with LiOMe and LiMe, resp. Complex 5 readily reacted with CO to give the carbonyl rhodium(I) derivative [Rh{κ3P,Ge,P-GeR(pyrmPiPr2)2CMe2}(CO)] (6), with HCl, HSnPh3 and Ph2S2 rendering the pentacoordinate methylgermyl rhodium(III) complexes [RhHX{κ3P,Ge,P-GeMe(pyrmPiPr2)2CMe2}] (X=Cl, 7; SnPh3, 8) and [Rh(SPh)2{κ3P,Ge,P-GeMe(pyrmPiPr2)2CMe2}] (9), resp., and with H2 to give the hexacoordinate derivative [RhH2{κ3P,Ge,P-GeMe(pyrmPiPr2)2CMe2}(PPh3)] (10). Complexes 3 and 5 are catalyst precursors for the hydroboration of styrene, 4-vinyltoluene and 4-vinylfluorobenzene with catecholborane under mild conditions.

Chemistry – A European Journal published new progress about Crystal structure. 403-41-8 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H9FO, SDS of cas: 403-41-8.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Tsui, Brian T. H.; Sung, Molly M. H.; Kinas, Jenny; Hahn, F. Ekkehardt; Morris, Robert H. published the artcile< A Ruthenium Protic N-Heterocyclic Carbene Complex as a Precatalyst for the Efficient Transfer Hydrogenation of Aryl Ketones>, Reference of 403-41-8, the main research area is bipyridinylimidazolylidene ruthenium pincer complex preparation catalyst reduction aryl ketone; crystal structure bipyridinylimidazolylidene ruthenium pincer complex; mol structure bipyridinylimidazolylidene ruthenium pincer complex.

A neutral azole precursor to a protic N-heterocyclic carbene (pNHC) ligand, 6-((4,5-diphenyl-1H-imidazol-1-yl)methyl)-2,2′-bipyridine (3), was prepared from 6-(bromomethyl)-2,2′-bipyridine (2) and 4,5-diphenylimidazole. [RuCl(pNHC-bpy)(PPh3)2](PF6) (4) bearing a protic, bipyridine-tethered NHC ligand was prepared by refluxing 3 with RuCl2(PPh3)3 and KPF6 in MeOH and was characterized by NMR spectroscopy, mass spectrometry, elemental anal., and a single-crystal x-ray diffraction study. The hydrido complex [RuH(pNHC-bpy)(PPh3)2](PF6) (5) was prepared by reaction of 4 with NaBH4 in EtOH and characterized by NMR and FTIR spectroscopy. Complex 5 was used as the catalyst (0.1 mol % loading) in the transfer hydrogenation of a range of alkyl/aryl ketones in basic iso-PrOH at 60°. Bulky alkyl groups or ortho-substituted aryl groups at the ketones slowed down or inhibited the catalytic transformation. The addition of an excess of PPh3 also slowed the catalysis, providing an indication for a mechanism involving phosphine dissociation, while the addition of an excess of elemental Hg had only a small effect on the conversion. The importance of K cations in the mechanism is consistent with the observation of reduced catalytic conversion when [2,2,2]-cryptand was present or when 1,8-diazabicyclo[5.4.0]undec-7-ene was used as the base. A plausible homogeneous catalysis mechanism involving the innersphere addition of hydride to the substrate in the transition state TS1 is supported by d. functional theory calculations where the K ion has replaced the H atom of the N-H group in a protic NHC.

Organometallics published new progress about Alkylidenes Role: CAT (Catalyst Use), PEP (Physical, Engineering or Chemical Process), PRP (Properties), SPN (Synthetic Preparation), USES (Uses), PROC (Process), PREP (Preparation) (Ru pincer complexes). 403-41-8 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H9FO, Reference of 403-41-8.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

K. Bains, Amreen; Ankit, Yadav; Adhikari, Debashis published the artcile< Bioinspired Radical-Mediated Transition-Metal-Free Synthesis of N-Heterocycles under Visible Light>, Safety of 1-(4-Fluorophenyl)ethyl Alcohol, the main research area is nitrogen heterocycle preparation; alc oxidation pyrene iminoquinone photocatalyst; amidine alc oxidation pyrene iminoquinone photocatalyst; carbonyl compound preparation; biomimetic catalysis; hydrogen atom transfer; pyrimidine; quinoline; topaquinone.

A redox-active iminoquinone motif connected with π-delocalized pyrene core has been reported that can perform efficient two-electron oxidation of a class of substrates. The design of the mol. was inspired by the organic redox cofactor topaquinone (TPQ), which executes amine oxidation in the enzyme, copper amine oxidase. Easy oxidation of both primary and secondary alcs. such as benzylalc., hexanol, 1-phenylethan-1-ol, cyclohexanol, etc. happened in the presence of catalytic KOtBu, which could reduce the ligand backbone to its iminosemiquinonate form under photoinduced conditions. Moreover, this easy oxidation of alcs. under aerobic condition could be elegantly extended to multi-component, one-pot coupling for the synthesis of quinolines e.g., I and pyrimidines II (R1 = Ph, 2-methylphenyl, 1-naphthyl, etc.; R2 = Ph, 4-chlorophenyl, 2-thienyl, etc.; R3 = H, Cl, Me, Br, etc.). This organocatalytic approach is very mild (70°C, 8 h) compared to a multitude of transition-metal catalysts that have been used to prepare these heterocycles e.g., I and II. A detailed mechanistic study proves the intermediacy of the iminosemiquinonate-type radical and a critical hydrogen atom transfer step to be involved in the dehydrogenation reaction.

ChemSusChem published new progress about Alcohols Role: PRP (Properties), RCT (Reactant), RACT (Reactant or Reagent). 403-41-8 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H9FO, Safety of 1-(4-Fluorophenyl)ethyl Alcohol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wang, Rongzhou; Han, Xingyou; Xu, Jing; Liu, Peng; Li, Feng published the artcile< Transfer Hydrogenation of Ketones and Imines with Methanol under Base-Free Conditions Catalyzed by an Anionic Metal-Ligand Bifunctional Iridium Catalyst>, HPLC of Formula: 403-41-8, the main research area is transfer hydrogenation ketone imine methanol; anionic metal ligand bifunctional iridium catalyst transfer hydrogenation.

An anionic iridium complex [Cp*Ir(2,2′-bpyO)(OH)][Na] was found to be a general and highly efficient catalyst for transfer hydrogenation of ketones and imines with methanol under base-free conditions. Readily reducible or labile substituents, such as nitro, cyano, and ester groups, were tolerated under present reaction conditions. Notably, this study exhibits the unique potential of anionic metal-ligand bifunctional iridium catalysts for transfer hydrogenation with methanol as a hydrogen source.

Journal of Organic Chemistry published new progress about Imines Role: RCT (Reactant), RACT (Reactant or Reagent). 403-41-8 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H9FO, HPLC of Formula: 403-41-8.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts