US1002400A - Process of producing beta-gamma-dimethylerythrene. - Google Patents

Process of producing beta-gamma-dimethylerythrene. Download PDF

Info

Publication number
US1002400A
US1002400A US59938410A US1910599384A US1002400A US 1002400 A US1002400 A US 1002400A US 59938410 A US59938410 A US 59938410A US 1910599384 A US1910599384 A US 1910599384A US 1002400 A US1002400 A US 1002400A
Authority
US
United States
Prior art keywords
dimethylerythrene
gamma
producing beta
beta
producing
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 - Lifetime
Application number
US59938410A
Inventor
Fritz Hofmann
Kurt Meisenburg
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.)
Bayer AG
Original Assignee
Farbenfabriken Vorm Friedr Bayer and 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 Farbenfabriken Vorm Friedr Bayer and Co filed Critical Farbenfabriken Vorm Friedr Bayer and Co
Priority to US59938410A priority Critical patent/US1002400A/en
Application granted granted Critical
Publication of US1002400A publication Critical patent/US1002400A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
    • C07C1/20—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms
    • C07C1/24—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms by elimination of water

Landscapes

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

Description

UNITED STATES PATENT OFFICE.
FRITZ HOFMANN AND KURT MEISENBURG, OF ELBERFELD, GERMANY, ASSIGNORS TO FARBENFABRIKEN VORM. FRIEDR. BAYER & 00., OF ELBERFELD, GERMANY, A
CORPORATION OF GERMANY.
PROCESS OF PRODUCING IBETA-GAMMA-DIMETHYLERYTHRENE.
No Drawing.
Specification of Letters Patent.
Patented Sept. 5, 1911.
Application filed December 2'7, 1910. Serial No. 599,384.
' To all whom it may concern:
Be it known that we, FRITZ HOFMANN and KURT MEISENBURG, doctors of philosophy, chemists, citizens of the German Empire, residing at Elberfeld, Germany, have invented new and useful Improvements in New Processes for Producing Beta- .Gamma-Dimethylerythrene, of which the following is a specification.
The process hitherto known for the production of beta-gamma-dimethylerythrene is to treat pinacone with dilute sulfuric acid,-
acetic anhydrid, tartaric acid or phosphoric acid. The chief product of the reaction however is pinacolin and beta-gammadimethylerythrene is only formed in traces.
We have discovered a new process which results in an excellent yield of beta-gammadimethylerythrene and which consists in distilling pinaconewith an acid salt of sulfuric acld. v
The process proceeds according to the following equation:
In order to illustrate the new process more fully the following example is given, the parts being by weight:50O parts of pinacone are mixed with 750 parts of hisulfate of potassium KI-ISO. and the re-. sulting mixture is heated to 140-150 G. Dimethylerythrene and water distil over 6. g. sodium bisulfate, sodium or potassium pyrosulfate. Y
We claim 1. Process for producing beta-gammadimethylerythrene, which process consists in first distilling pinacone with an acid salt of sulfuric acid and then separating the beta-gamma-dimethylerythrene from the distillate, substantially as described.
2. Process for producing beta-gamma-dimethylerythrene, which process consists in first distilling pinacone potassium and then separating the betagamma-dimethylerythrene from the distillate, substantially as described.
with bisulfate of In testimony whereof we have hereunto set our hands in the presence of two subscribing wltnesses.
FRITZ HOFMANN. L. 5. KURT MEISENBURG. L. 5.1
' Witnesses:
CHAS. J. WRIGHT, WALTER VONNEGUT.
US59938410A 1910-12-27 1910-12-27 Process of producing beta-gamma-dimethylerythrene. Expired - Lifetime US1002400A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US59938410A US1002400A (en) 1910-12-27 1910-12-27 Process of producing beta-gamma-dimethylerythrene.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US59938410A US1002400A (en) 1910-12-27 1910-12-27 Process of producing beta-gamma-dimethylerythrene.

Publications (1)

Publication Number Publication Date
US1002400A true US1002400A (en) 1911-09-05

Family

ID=3070720

Family Applications (1)

Application Number Title Priority Date Filing Date
US59938410A Expired - Lifetime US1002400A (en) 1910-12-27 1910-12-27 Process of producing beta-gamma-dimethylerythrene.

Country Status (1)

Country Link
US (1) US1002400A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2527120A (en) * 1939-06-03 1950-10-24 Ets Kuhlmann Method for the preparation of butadiene
US3246045A (en) * 1962-06-25 1966-04-12 Sinclair Research Inc Method for producing terminal olefins

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2527120A (en) * 1939-06-03 1950-10-24 Ets Kuhlmann Method for the preparation of butadiene
US3246045A (en) * 1962-06-25 1966-04-12 Sinclair Research Inc Method for producing terminal olefins

Similar Documents

Publication Publication Date Title
US1002400A (en) Process of producing beta-gamma-dimethylerythrene.
US3035098A (en) Method for chlorinating alkylidenebisphenols
US1005217A (en) Process of producing divinyl.
US2198236A (en) Preparation of dialkyl acetylenes
US3781389A (en) Process for the production of substituted thionophosphoryl chlorides
US1045139A (en) Process of making chlorinated hydrocarbons
US2913489A (en) Preparation of carboxylic acids
EP0206789A2 (en) Crystalline hydroxyphenylpropionic acid ester and its production
DE887198C (en) Process for the preparation of naphthostyrils
US1065160A (en) 1-dimethylaminobutene-3 and process of making same.
US1030239A (en) Process of producing aliphatic hydrocarbons with more than one double bond.
US2821553A (en) Preparation of mucochloric acid
US1494879A (en) Process of manufacturing carbazol derivatives
US3318956A (en) Process for producing dihydroxy-diphenyl sulfone
US1944568A (en) Process for the manufacture of aromatic sulphodihalogenamides
US1859399A (en) New process for introducing sulphocyanic groups in aliphatic compounds
US1906440A (en) Process for the manufacture of phosphorus pentachloride
US991719A (en) Process of producing beta-methyladipic acid.
US2156936A (en) Preparation of hexene from divinyl-acetylene
Ulrich et al. 4-Isocyanatophthalic anhydride. Novel difunctional monomer
US3347918A (en) Production of cyclododecylamine
US2590208A (en) Process for preparing cyclohexene
US2530410A (en) Process for the production of pyrosulfuryl chloride
DE2132961B2 (en) Process for the preparation of N-Alkvlcarbazolen
US683464A (en) Process of making acetic anhydrid.