Carboxylation of alkali metal phenoxide with carbon dioxide at terrestrial temperature

Kosugi, Yoshio; Rahim, Md. Abdur; Takahashi, Kazufumi; Imaoka, Yoshio; Kitayama, Masaya

doi:10.1002/1099-0739(200012)14:12<841::aid-aoc74>3.3.co;2-g

Cited by 2 publications

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“…Salicylic acid is a crucial reactant for the synthesis of Aspirin. More than 100 years ago, the Kolbe-Schmitt reaction for the salicylic acid synthesis was developed and it is still a topic of research [8,9]. The synthesis of fivemember cyclic carbonates via the cycloaddition of CO 2 to epoxides is one of the promising reactions in this area replacing existing poisonous phosgene-based synthesis.…”

Section: Introductioncontrasting

confidence: 62%

Carbon dioxide: a renewable feedstock for the synthesis of fine and bulk chemicals

Patil

Tambade

Jagtap

et al. 2009

Front. Chem. Eng. China

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The syntheses of carbon dioxide (CO 2 ) based industrially important chemicals have gained considerable interest in view of the sustainable chemistry and "green chemistry" concepts. In this review, recent developments in the chemical fixation of CO 2 to valuable chemicals are discussed. The synthesis of five-member cyclic carbonates via, cycloaddition of CO 2 to epoxides is one of the promising reactions replacing the existing poisonous phosgene-based synthetic route. This review focuses on the synthesis of cyclic carbonates, vinyl carbamates, and quinazoline-2,4(1H,3H)-diones via reaction of CO 2 and epoxide, amines/phenyl acetylene, 2-aminobenzinitrile and other chemicals. Direct synthesis of dimethyl carbonate, 1,3-disubstituted urea and 2-oxazolidinones/2-imidazolidinones have limitations at present because of the reaction equilibrium and chemical inertness of CO 2 . The preferred alternatives for their synthesis like transesterification of ethylene carbonate with methanol, transamination of ethylene carbonate with primary amine and transamination reaction of ethylene carbonate with diamines/β-aminoalcohols are discussed. These methodologies offer marked improvements for greener chemical fixation of CO 2 in to industrially important chemicals.

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Section: Introductioncontrasting

confidence: 62%

Carbon dioxide: a renewable feedstock for the synthesis of fine and bulk chemicals

Patil

Tambade

Jagtap

et al. 2009

Front. Chem. Eng. China

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“…The chemistry of substituted phenols as ligands continues to be a fascinating area of study owing to their ability to provide complexes with rich structural diversity and potential applications in diverse fields [1][2][3][4]. Although the literature contains voluminous reports on phenoxides of main group elements, transition metals, lanthanides, and actinides, more recent interest has centered on the early and late d-block metal chemistry supported by sterically bulky aryloxide ligation [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization, and acceptor behavior of dichlorotris(2-t-butylphenoxo)niobium(V)

Sharma

Bhatt

et al. 2010

Journal of Coordination Chemistry

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The reaction of niobium pentachloride with three equivalents of 2-t-butylphenol in carbon tetrachloride afforded [NbCl 2 (OC 6 H 4 C(CH 3 ) 3 -2) 3 ]. The identity of the complex has been established by elemental analyses, molar conductance, molecular weight determination, IR, 1 H, and 13 C-NMR and UV-Vis spectral studies. Based upon these studies, a square-pyramidal geometry around niobium has been proposed. Thermal behavior of the complex has been studied by TGA and DTA. Acceptor behavior of [NbCl 2 (OC 6 H 4 C(CH 3 ) 3 -2) 3 ] toward Ph 3 P, Ph 3 As, Ph 3 PO, Ph 3 AsO, and an uncommon ligand arsenictrithiophenoxide As(SPh) 3 allows the isolation of 1 : 1 addition compounds as shown by physicochemical, IR, and 1 H-NMR spectral studies. The formation of [NbCl 2 (OC 6 H 4 C(CH 3 ) 3 -2) 3 ] Á As(SPh) 3 appears to be the first adduct of its class and suggests the suitability of As(SPh) 3 as a ligand.

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Carboxylation of alkali metal phenoxide with carbon dioxide at terrestrial temperature

Cited by 2 publications

References 0 publications

Carbon dioxide: a renewable feedstock for the synthesis of fine and bulk chemicals

Carbon dioxide: a renewable feedstock for the synthesis of fine and bulk chemicals

Synthesis, characterization, and acceptor behavior of dichlorotris(2-t-butylphenoxo)niobium(V)

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