GB960003A - Process for condensing an aldehyde with a compound containing at least two active hydrogen atoms on the same carbon atom - Google Patents

Process for condensing an aldehyde with a compound containing at least two active hydrogen atoms on the same carbon atom

Info

Publication number
GB960003A
GB960003A GB29055/60A GB2905560A GB960003A GB 960003 A GB960003 A GB 960003A GB 29055/60 A GB29055/60 A GB 29055/60A GB 2905560 A GB2905560 A GB 2905560A GB 960003 A GB960003 A GB 960003A
Authority
GB
United Kingdom
Prior art keywords
aldehyde
hydrogen atoms
condensing
active hydrogen
acrolein
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
GB29055/60A
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.)
Gulf Research and Development Co
Original Assignee
Gulf Research and Development Co
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 Gulf Research and Development Co filed Critical Gulf Research and Development Co
Publication of GB960003A publication Critical patent/GB960003A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
    • C07C45/68—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C253/00—Preparation of carboxylic acid nitriles
    • C07C253/30—Preparation of carboxylic acid nitriles by reactions not involving the formation of cyano groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
    • C07C45/68—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
    • C07C45/72—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups
    • C07C45/74—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups combined with dehydration
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2603/00—Systems containing at least three condensed rings
    • C07C2603/02—Ortho- or ortho- and peri-condensed systems
    • C07C2603/04—Ortho- or ortho- and peri-condensed systems containing three rings
    • C07C2603/22—Ortho- or ortho- and peri-condensed systems containing three rings containing only six-membered rings
    • C07C2603/24—Anthracenes; Hydrogenated anthracenes

Landscapes

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

Abstract

An a ,b unsaturated compound is obtained by condensing an aldehyde with a compound containing at least two active hydrogen atoms on the same carbon atom in the presence of an organic magnesium salt soluble in the reaction mixture. Active hydrogen atoms are defined as hydrogen atoms attached to carbon atoms adjacent to or in conjunction with electron withdrawing groups such as aldehyde, keto, nitro, nitrile, carboxylic acid or carboxylic ester groups. The aldehyde may be aliphatic or aromatic and may contain alkoxy, amino, halogen, nitro or nitrile substituents. The magnesium salt may be derived from an organic, e.g. carboxylic acid, a phenol, a thiophenol or a chelating agent and may be used in proportions of about 0.001 to about 0.05 mole per mole of total reactants. Temperatures of about 50-400 DEG C. are mentioned. In examples, a -isoamyl-b -isohexyl acrolein is obtained from the condensation of isoheptaldehyde (acting as both reactants), a -isohexyl-b -isoheptyl acrolein from isooctaldehyde, a -n-amyl-b -n-hexyl acrolein from n-heptaldehyde, and styryl hexyl ketone by condensing benzaldehyde with 2-octanone.
GB29055/60A 1959-09-25 1960-08-23 Process for condensing an aldehyde with a compound containing at least two active hydrogen atoms on the same carbon atom Expired GB960003A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84220559A 1959-09-25 1959-09-25

Publications (1)

Publication Number Publication Date
GB960003A true GB960003A (en) 1964-06-10

Family

ID=25286764

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29055/60A Expired GB960003A (en) 1959-09-25 1960-08-23 Process for condensing an aldehyde with a compound containing at least two active hydrogen atoms on the same carbon atom

Country Status (2)

Country Link
DE (1) DE1138384B (en)
GB (1) GB960003A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3381039A (en) * 1963-07-18 1968-04-30 Hoffmann La Roche 1, 1-diethoxy-4-cyclohexylidene butane

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2545261A (en) * 1947-10-08 1951-03-13 Chemical Elaborations Inc Catalysis of addition reactions
US2666771A (en) * 1948-12-09 1954-01-19 Fmc Corp Catalyzing organic isomerization reactions with active magnesia

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3381039A (en) * 1963-07-18 1968-04-30 Hoffmann La Roche 1, 1-diethoxy-4-cyclohexylidene butane

Also Published As

Publication number Publication date
DE1138384B (en) 1962-10-25

Similar Documents

Publication Publication Date Title
GB853482A (en) Aminoaralkyldihydroxybenzenes, their o-acyl derivatives and their use in photographic processes
ES388863A1 (en) Pharmaceutical use of certain substituted biguanides
GB859509A (en) Stabilized acrylonitrile polymers
GB960003A (en) Process for condensing an aldehyde with a compound containing at least two active hydrogen atoms on the same carbon atom
Man et al. The Claisen Acylation of Methyl Ketones with Branched Chain Aliphatic Esters1
GB936278A (en) Process for the manufacture of phenols from diazonium salt solutions in a continuousmanner
GB902058A (en) Process for the preparation of di-benzoxazolyl-ethylene compounds
ES410144A1 (en) A procedure for preparing 2- (6-metoxy-2-nafthy) propionic acid. (Machine-translation by Google Translate, not legally binding)
GB943772A (en) Improvements in or relating to derivatives of diphenyl synthetic estrogens
GB884548A (en) Improvements in the production of alpha, beta-unsaturated nitriles
GB915472A (en) Process for arylindandiones
ES284408A1 (en) A procedure for preparing phenol (Machine-translation by Google Translate, not legally binding)
GB552674A (en) Improvements in or relating to the inhibition of corrosion of magnesium and magnesium base alloys
GB930289A (en) Improvements in or relating to the preparation of sodium cyclohexylsulphamate
GB824144A (en) An improved process for the carboxylation of phenols
GB976593A (en) Preparation of 1:2-diphenyl-4-alkyl-3:5-dioxo-pyrazolidine
GB914734A (en) New cyclopentano-naphthalene derivatives and their formation
ES400859A1 (en) Preparation of nitrophenols
GB573752A (en) Improvements in or relating to the production of condensation products of acetylene
GB989033A (en) N-substituted-1-phenyl-2-aminoalkanes
Srivastava Studies on the Ionization of Substituted Benzoic Acids
GB1478428A (en) Substituted diphenylethers and herbicidal composition thereof
GB961434A (en) Dibasic acid imides
GB957646A (en) New hydroxy-oestrane compounds
GB573763A (en) Improvements in or relating to the manufacture of halogenated organic acids