Über die Verbindungen des Phosgens mit Hexamethylentetramin, m‐Toluidin und Äthylendiamin

Puschin, N. A.; Mitić, R. V.

doi:10.1002/jlac.19375320125

Cited by 33 publications

(15 citation statements)

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“…Condensation with 1,2-diketones results in the elimination of water to give the corresponding 2,3-dihydropyrazines, which can be readily dehydrogenated to pyrazines [233]. Phosgene reacts with diaminoethane to give the hydrochloride of N,N 0 -ethyleneurea (2-imidazolidone) [234]. One mole of diaminoethane reacts with two moles of carbon disulfide in the presence of a basic catalyst to give ethylene bisdithiocarbamate [235].…”

Section: Diamines and Polyaminesmentioning

confidence: 99%

Amines, Aliphatic

Roose¹,

Eller

Henkes

et al. 2015

Ullmann's Encyclopedia of Industrial Chemistry

150

131

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The article contains sections titled: 1. Introduction 2. General Chemical Properties 2.1. Salt Formation 2.2. Conversion to Carboxamides 2.3. Conversion to Sulfonamides 2.4. Reaction with Carbonyl Compounds 2.5. Reaction with Carbon Dioxide and Carbon Disulfide 2.6. Reaction with Epoxides 2.7. Alkylation 2.8. Formation of Isocyanates and Ureas 2.9. Reaction with Acrylonitrile 2.10. Formation of Isonitriles 2.11. Oxidation 2.12. Dealkylation 3. General Production Methods 3.1. Production from Alcohols 3.2. Production from Carbonyl Compounds 3.3. Production from Nitriles 3.4. Production from Alkyl Halides 3.5. Production from Nitro Compounds 3.6. Production from Olefins 3.7. Other Processes 4. Lower Alkylamines 4.1. Physical Properties 4.2. Storage and Transportation 4.3. Quality Specifications and Analysis 4.4. Production 4.5. Uses 4.6. Economic Aspects 5. Cycloalkylamines 6. Cyclic Amines 7. Fatty Amines 7.1. Properties 7.2. Production 7.3. Analysis and Quality Control 7.4. Uses 7.5. Economic Aspects 8. Diamines and Polyamines 8.1. Diamines Diaminoethane 8.1.1. Diaminopropanes 8.1.2. Higher Diamines 8.2. Oligoamines and Polyamines 8.2.1. Physical Properties 8.2.2. Chemical Properties 8.2.3. Production, Analysis, and Uses 9. Chiral Amines 10. Toxicology and Occupational Health 10.1. General Aspects 10.2. Toxicology of Specific Amines 10.2.1. Alkylamines, Cyclic Amines, and Polyamines 10.2.2. Fatty Amines

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Section: Diamines and Polyaminesmentioning

confidence: 99%

Amines, Aliphatic

Roose¹,

Eller

Henkes

et al. 2015

Ullmann's Encyclopedia of Industrial Chemistry

150

131

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“…2-Imidiazolidinones have recently attracted much attention due to their manifold applications as intermediates for biologically active molecules, such as the HIV protease inhibitors, DMP 323 and DMP 450 [186]. Conventionally 2-imidiazolidinones and 2-oxazolidinones are synthesized by reaction of 1,2-diamines and β-aminoalcohols with several reagents like phosgene [187], urea [188] dialkyl carbonates [189,190] or the mixture CO/O 2 via, oxidative carbonylation [191] (Scheme 12). The synthesis using urea has a major drawback such as the formation of large quantities of polyurea along with the requirement of high temperature [192].…”

Section: Synthesis Of 2-oxazolidinones/2-imidiazolidinones Via Transementioning

confidence: 99%

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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“…[9] Accordingly, various synthetic methods have been developed for their syntheses. [10] Conventionally, oxazolidin-2-ones and imidazolidin-2-ones are prepared respectively from 2-amino alcohols and 1,2-diamines with carbonyl source compounds such as phosgene, [11] phosgene derivatives, [12] carbon monoxide, [13] and carbon dioxide. [14] However, phosgene and carbon monoxide are highly toxic compounds and they are difficult to handle in the laboratory; using carbon dioxide as the carbonyl source always requires harsh reaction conditions, i.e., high temperature and/or high pressure.…”

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confidence: 99%