SU461925A1 - The method of obtaining 3,3,8,8-tetramethyl 2,7-dioxaspiro (4,4) nonane-1,6 dione - Google Patents

The method of obtaining 3,3,8,8-tetramethyl 2,7-dioxaspiro (4,4) nonane-1,6 dione

Info

Publication number
SU461925A1
SU461925A1 SU1952741A SU1952741A SU461925A1 SU 461925 A1 SU461925 A1 SU 461925A1 SU 1952741 A SU1952741 A SU 1952741A SU 1952741 A SU1952741 A SU 1952741A SU 461925 A1 SU461925 A1 SU 461925A1
Authority
SU
USSR - Soviet Union
Prior art keywords
dioxaspiro
nonane
dione
tetramethyl
obtaining
Prior art date
Application number
SU1952741A
Other languages
Russian (ru)
Inventor
Максим Гаврилович Виноградов
Татьяна Михайловна Федорова
Геннадий Иванович Никишин
Original Assignee
Институт Органической Химии Им. Н.Д.Зелинского Ан Ссср
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 Институт Органической Химии Им. Н.Д.Зелинского Ан Ссср filed Critical Институт Органической Химии Им. Н.Д.Зелинского Ан Ссср
Priority to SU1952741A priority Critical patent/SU461925A1/en
Application granted granted Critical
Publication of SU461925A1 publication Critical patent/SU461925A1/en

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

3 5,5-диметилбутиролактон подвергают взаимодействию с водным раствором минеральной кислоты при нагревании с последующим выделением целевого продукта известными приемами .5 4 2. Способ по п. 1, отличающийс  тем, что в качестве минеральной кислоты иснользуют сол ную кислоту. 3. Способ по пп. 1, 2, отличающийс  тем, что процесс ведут при 50-150°С.3 5,5-dimethylbutyrolactone is reacted with an aqueous solution of mineral acid when heated, followed by separation of the target product by known methods .5 4 2. The method of claim 1, characterized in that hydrochloric acid is used as the mineral acid. 3. The method according to paragraphs. 1, 2, characterized in that the process is carried out at 50-150 ° C.

SU1952741A 1973-07-25 1973-07-25 The method of obtaining 3,3,8,8-tetramethyl 2,7-dioxaspiro (4,4) nonane-1,6 dione SU461925A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1952741A SU461925A1 (en) 1973-07-25 1973-07-25 The method of obtaining 3,3,8,8-tetramethyl 2,7-dioxaspiro (4,4) nonane-1,6 dione

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1952741A SU461925A1 (en) 1973-07-25 1973-07-25 The method of obtaining 3,3,8,8-tetramethyl 2,7-dioxaspiro (4,4) nonane-1,6 dione

Publications (1)

Publication Number Publication Date
SU461925A1 true SU461925A1 (en) 1975-02-28

Family

ID=20562586

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1952741A SU461925A1 (en) 1973-07-25 1973-07-25 The method of obtaining 3,3,8,8-tetramethyl 2,7-dioxaspiro (4,4) nonane-1,6 dione

Country Status (1)

Country Link
SU (1) SU461925A1 (en)

Similar Documents

Publication Publication Date Title
SU572201A3 (en) Method of preparing methyl ester of 5-propyltio-2-benzimidazolcarbamic acid
SU461925A1 (en) The method of obtaining 3,3,8,8-tetramethyl 2,7-dioxaspiro (4,4) nonane-1,6 dione
SU513622A3 (en) Method for preparing 4-hydroxymethyl-1,2-dihydro-1-phthalazone
FI50988C (en) Process for the preparation of beta- (3-keto-7alpha-thioacetyl-17beta-hydroxy-4-androsten-17alpha-yl) propionic acid gamma-lactone.
ES414645A1 (en) Process for preparing desacetoxycephalosporins
SU446125A3 (en) Method for producing perfluoroalkyl iodide
SU497280A1 (en) The method of obtaining 1,1,3,3-tetraethoxy2,2-dimethylpropane
SU487890A1 (en) Method for chlorpromazine release
SU497283A1 (en) Method for preparing benzoic or hydroxybenzoic acid α-oxyethyl esters
SU493460A1 (en) The method of producing aldehydes or ketones
SU502896A1 (en) The method of obtaining bis (priortilsilyl) sulfates
SU505643A1 (en) The method of obtaining 2-isobutyl-4-methyl3,6-dihydropyran-iso "rose oxide
SU418487A1 (en)
SU479763A1 (en) Method for preparing 3-amino-ethylcarbazole hydrochloride
SU382613A1 (en)
JPS5239642A (en) A process for preparing protocatechualdehyde
SU368255A1 (en) METHOD OF OBTAINING SUBSTITUTED DIBENZO-9-AZABICYCLO-
SU498296A1 (en) Method for preparing 4-hydroxypiperidine derivatives
SU468926A1 (en) The method of obtaining polymers
GB1334417A (en) Process for the preparation of 2-hexanal
SU420625A1 (en)
SU459958A1 (en) Method of obtaining n-phenyl-2-naphthylamine
SU372213A1 (en) ALL-UNION
SU457701A1 (en) Method for producing quinaldinic acid
CH550192A (en) PROCESS FOR THE PREPARATION OF NEW THIOHYDROXIMIC ACID DERIVATIVES.