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DE1044055B - Process for the preparation of alkoxy- or aroxy- or alkylalkoxyborines - Google Patents

Process for the preparation of alkoxy- or aroxy- or alkylalkoxyborines

Info

Publication number
DE1044055B
DE1044055B DEK30550A DEK0030550A DE1044055B DE 1044055 B DE1044055 B DE 1044055B DE K30550 A DEK30550 A DE K30550A DE K0030550 A DEK0030550 A DE K0030550A DE 1044055 B DE1044055 B DE 1044055B
Authority
DE
Germany
Prior art keywords
aroxy
alkoxy
alkylalkoxyborines
acid ester
preparation
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.)
Pending
Application number
DEK30550A
Other languages
German (de)
Inventor
Dr Herbert Jenkner
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.)
Kali Chemie AG
Original Assignee
Kali Chemie AG
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 Kali Chemie AG filed Critical Kali Chemie AG
Priority to DEK30550A priority Critical patent/DE1044055B/en
Publication of DE1044055B publication Critical patent/DE1044055B/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F5/00Compounds containing elements of Groups 3 or 13 of the Periodic Table
    • C07F5/02Boron compounds
    • C07F5/04Esters of boric acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)

Description

Verfahren zur Herstellung von Alkoxy- bzw. Aroxy- oder Alkylalkoxyborinen Es wurde gefunden, daß Alkoxy- bzw. Aroxy- oder Alkylalkoxyborine ohne Verwendung von Diboran hergestellt werden können, wenn Halogenborsäureester mit insbesondere Alkali- oder Erdalkalihydriden oder deren Gemischen, gegebenenfalls unter Druck, vorzugsweise in Gegenwart von Lösungs-, Verdünnungs- oder Suspensionsmitteln, umgesetzt werden. Die Reaktionen verlaufen unter anderem nach folgender Gleichung B (OR)2Ha1 -I- NaH-->B (OR)2H -(- NaHal (R = Alkyl, Aryl bzw. subst. Alkyl, Aryl; Hal = insbesondere F, Cl, Br.) Als Lösungs-, Verdünnungs- oder Suspensionsmittel kommen insbesondere in Frage Paraffine, wie Hexan, Octan, Decan oder Mineralöle, aromatische Verbindungen, wie Toluol, Xylol, Tetraalkylsilane, Methylnap:hth-alin u. dgl.Process for the preparation of alkoxy- or aroxy- or alkylalkoxyborines It has been found that alkoxy- or aroxy- or alkylalkoxyborines can be prepared without the use of diborane if haloboric acid esters with in particular alkali or alkaline earth metal hydrides or mixtures thereof, optionally under pressure, preferably be implemented in the presence of solvents, diluents or suspending agents. The reactions proceed according to the following equation, among other things B (OR) 2Ha1 -I- NaH -> B (OR) 2H - (- NaHal (R = alkyl, aryl or substituted alkyl, aryl; Hal = in particular F, Cl, Br.) Particularly suitable solvents, diluents or suspending agents are paraffins, such as hexane, octane, decane or mineral oils, aromatic compounds, such as toluene, xylene, tetraalkylsilanes, methylnap: hth-aline and the like.

Im allgemeinen ist es zweckmäßig, die Suspension von obigen Hydriden zunächst mit einer geringen Menge, z. B. 0,1 bis 10 %, Borsäureester zu aktivieren und dann den Halogenborsäureester zuzugeben.In general, it is advantageous to use the suspension of the above hydrides initially with a small amount, e.g. B. 0.1 to 10% to activate boric acid ester and then add the haloboric acid ester.

Man erhält so Alkoxyborine in hohen Ausbeuten und großer Reinheit, die als Hydrierungsmittel in der anorganischen und organischen Chemie, als Treib-oder Brennstoffe bzw. als Zusatz zu Treib- und Brennstoffen, als Zwischenprodukt zur Herstellung verschiedener Borverbindungen, z. B. von Komplexborhydriden, als Polymerisation.skatalysatoren und ähnlichem verwendet werden.This gives alkoxyborines in high yields and great purity, as a hydrogenating agent in inorganic and organic chemistry, as a blowing agent or Fuels or as an additive to fuels and fuels, as an intermediate product for Production of various boron compounds, e.g. B. of complex borohydrides, as Polymerisation.skatalysatoren and the like can be used.

Beispiel Zu einer Suspension von: 12 g Na H in 250 ccm Mineralöl (Viscobilöl V 386) wurden bei 80° C zunächst etwa 4 ccm Borsäureäthylester gegeben und anschließend insgesamt 68 g Chlorborsäu:reester mit einem CI-Gehalt von 26 % zugetropft. Exotherme Reaktion unter Abdestillieren der gebildeten Alkoxyborine zwischen 91 und 105° C. Zum Schluß wurde bis auf 180° C erhitzt. Erhalten wurden 54,3 g chlorfreies Dialkoxybo@rin-Borsäureester-Gemisch.EXAMPLE To a suspension of: 12 g of Na H in 250 cc of mineral oil (Viscobilöl V 386), about 4 cc of ethyl borate were first added at 80 ° C. and then a total of 68 g of chloroboric acid ester with a CI content of 26% were added dropwise. Exothermic reaction with distilling off the alkoxyborines formed between 91 and 105.degree. C. Finally, the mixture was heated up to 180.degree. 54.3 g of chlorine-free dialkoxyboron-boric acid ester mixture were obtained.

Claims (2)

PATENTANSPRÜCHE: 1. Verfahren zur Herstellung von Alkoxy- bzw. Aroxy- oder Alkylalkoxyborinen, dadurch gekennzeichnet, daß Alkoxy- bzw. Aroxy- bzw. Alkylhalogenborsäureester mit Alkali- bzw. Erdalkalihydriden oder deren Gemischen in Gegenwart oder Abwesenheit von Lösungs-, Verdünnungs- oder Suspensionsmitteln, bei normaler oder erhöhter Temperatur bis etwa 200° C, gegebenenfalls unter Druck, umgesetzt werden. PATENT CLAIMS: 1. Process for the production of alkoxy or aroxy or alkylalkoxyborines, characterized in that alkoxy or aroxy or alkylhaloboric acid esters with alkali or alkaline earth hydrides or mixtures thereof in the presence or absence of solvents, diluents or suspending agents, at normal or elevated temperature to about 200 ° C, optionally under pressure, are reacted. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß einer Suspension eines Alkali- bzw. Erdalkalihydrids eine geringe Menge, vorzugsweise 0,1 bis 10 0/0, Borsäureester vor der Zugabe des Halogenborsäureesters zugesetzt wird.2. Procedure according to Claim 1, characterized in that a suspension of an alkali or alkaline earth metal hydride a small amount, preferably 0.1 to 10 0/0, boric acid ester before adding the Haloboric acid ester is added.
DEK30550A 1956-12-12 1956-12-12 Process for the preparation of alkoxy- or aroxy- or alkylalkoxyborines Pending DE1044055B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK30550A DE1044055B (en) 1956-12-12 1956-12-12 Process for the preparation of alkoxy- or aroxy- or alkylalkoxyborines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK30550A DE1044055B (en) 1956-12-12 1956-12-12 Process for the preparation of alkoxy- or aroxy- or alkylalkoxyborines

Publications (1)

Publication Number Publication Date
DE1044055B true DE1044055B (en) 1958-11-20

Family

ID=7218870

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK30550A Pending DE1044055B (en) 1956-12-12 1956-12-12 Process for the preparation of alkoxy- or aroxy- or alkylalkoxyborines

Country Status (1)

Country Link
DE (1) DE1044055B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1255095B (en) * 1961-06-29 1967-11-30 Callery Chemical Co Process for the preparation of dialkoxyboranes by reacting trialkyl borates with hydrides

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1255095B (en) * 1961-06-29 1967-11-30 Callery Chemical Co Process for the preparation of dialkoxyboranes by reacting trialkyl borates with hydrides

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