GB573044A - Improvements in or relating to the production of aromatic derivatives of 1.1.1-trichloroethane - Google Patents

Improvements in or relating to the production of aromatic derivatives of 1.1.1-trichloroethane

Info

Publication number
GB573044A
GB573044A GB1724243A GB1724243A GB573044A GB 573044 A GB573044 A GB 573044A GB 1724243 A GB1724243 A GB 1724243A GB 1724243 A GB1724243 A GB 1724243A GB 573044 A GB573044 A GB 573044A
Authority
GB
United Kingdom
Prior art keywords
chloral
sulphuric acid
nitro
trichloroethane
mono
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1724243A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TOPPUR SEETHAPATHY SUBRAMANIAN
Imperial Chemical Industries Ltd
Original Assignee
TOPPUR SEETHAPATHY SUBRAMANIAN
Imperial Chemical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TOPPUR SEETHAPATHY SUBRAMANIAN, Imperial Chemical Industries Ltd filed Critical TOPPUR SEETHAPATHY SUBRAMANIAN
Priority to GB1724243A priority Critical patent/GB573044A/en
Publication of GB573044A publication Critical patent/GB573044A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/26—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton
    • C07C17/263—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by condensation reactions
    • C07C17/2637—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by condensation reactions between a compound containing only oxygen and possibly halogen as hetero-atoms and a halogenated hydrocarbon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Aryl substitution products of 1 : 1 : 1-trichloroethane are obtained by the interaction in presence of conc. sulphuric acid of chloral alcoholate with an aromatic hydrocarbon or a nuclearly-substituted halo- or nitro-derivative thereof, having a hydrogen atom attached directly to the aromatic nucleus, especially compounds of the type <PICT:0573044/IV/1> wherein X is an alkyl radical, Y is a halogen atom or a nitro group and n and m may be 0, 1 or 2, e.g. mono- or di-halo- and mono- or di-nitro-derivatives of toluene and of o- and p - xylene. Condensation is advantageously effected, using 5 to 10 per cent more of the chloral alcoholate than corresponds to one mol. of chloral for every 2 mols. of the aromatic compound. In an example, crude chloral alcoholate, obtained by slowly introducing chlorine into alcohol during three periods of 24 hours at (i) 0 DEG C., (ii) 50-60 DEG C., and (iii) 90-95 DEG C., is mixed with monochlorobenzene and 98 per cent sulphuric acid and heated to 50 DEG C. to initiate exothermic condensation and when reaction has ceased, the bulk of sulphuric acid is drained and water at approximately 85 DEG C. is added to effect separation of crude p : p1-dichlorodiphenyltrichloroethane.
GB1724243A 1943-10-20 1943-10-20 Improvements in or relating to the production of aromatic derivatives of 1.1.1-trichloroethane Expired GB573044A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1724243A GB573044A (en) 1943-10-20 1943-10-20 Improvements in or relating to the production of aromatic derivatives of 1.1.1-trichloroethane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1724243A GB573044A (en) 1943-10-20 1943-10-20 Improvements in or relating to the production of aromatic derivatives of 1.1.1-trichloroethane

Publications (1)

Publication Number Publication Date
GB573044A true GB573044A (en) 1945-11-02

Family

ID=10091759

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1724243A Expired GB573044A (en) 1943-10-20 1943-10-20 Improvements in or relating to the production of aromatic derivatives of 1.1.1-trichloroethane

Country Status (1)

Country Link
GB (1) GB573044A (en)

Similar Documents

Publication Publication Date Title
Farnum Preparation of aryldiazoalkanes by the Bamford-Stevens reaction
Newman et al. A new reagent for resolution by complex formation; The resolution of phenanthro-[3, 4-c] phenanthrene1
Walter Triarylaminium Salt Free Radicals1
Conover et al. Hydrogenolysis of Certain Substituted Aromatic Acids and Carbonyl Compounds by Lithium Aluminum Hydride
Prosen et al. Heat of Combustion and Formation of 1, 3, 5, 7-Cycloöctatetraene and its Heat of Isomerization to Styrene
Brown et al. The Reaction of Methyl Iodide with o-Phenylenediamine; Homomorphs of o-Di-t-butylbenzene1, 2
France et al. 256. Studies in the terphenyl series. Part I. p-Terphenyl, nitro-, amino-, and halogeno-p-terphenyls
US3009958A (en) Hydroquinonyl derivatives and their synthesis
GB573044A (en) Improvements in or relating to the production of aromatic derivatives of 1.1.1-trichloroethane
GB945160A (en) New dihydrotriazine derivatives and a process for their manufacture
ES278066A1 (en) Method of preparation of a compound corresponding to the formula (Machine-translation by Google Translate, not legally binding)
Edward The oxidation of N-alkylanilines and related compounds with benzoyl peroxide
Burdon et al. Polycyclic fluoroaromatic compounds—IV: Some reactions of octafluoroacenaphthylene
US2999114A (en) N(beta-trinitroethyl)-p-nitroaniline
Johnson et al. Acetoxylation by aryliodoso acetates. III. Effects of structural changes in the reactants
US2090237A (en) Derivatives of z
US1741877A (en) New process of preparing phenyl-oxalyl acetic-acid alkyl esters
NozoE et al. On o-and p-Methyltropolones
US2390593A (en) Dicarboxylic acid derivatives of lower alkyl ethers of vitamin b6, and a process of peparing the same
GB1387088A (en) Process for the preparation of substituted diphenyl ethers
US2084934A (en) Diazonium salts
US1879206A (en) Process of preparing phenyl mercuric acetate
GB611745A (en) Improvements in or relating to the production of phenanthridine compounds
SU121892A1 (en) The method of obtaining 4,41-diarylamino-triphenylmethane dyes, derivatives of m-aminobenzoic acid
Gardner et al. The Synthesis and Oxidation of Certain Perchlorylbenzenes