JPS54163504A - Production of conjugated diene compound - Google Patents

Production of conjugated diene compound

Info

Publication number
JPS54163504A
JPS54163504A JP7354078A JP7354078A JPS54163504A JP S54163504 A JPS54163504 A JP S54163504A JP 7354078 A JP7354078 A JP 7354078A JP 7354078 A JP7354078 A JP 7354078A JP S54163504 A JPS54163504 A JP S54163504A
Authority
JP
Japan
Prior art keywords
acid
oxy
conjugated diene
boric acid
diene compound
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.)
Granted
Application number
JP7354078A
Other languages
Japanese (ja)
Other versions
JPS5833205B2 (en
Inventor
Sunao Kyo
Katsumi Komura
Kenichi Hino
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.)
Kuraray Co Ltd
Original Assignee
Kuraray Co 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 Kuraray Co Ltd filed Critical Kuraray Co Ltd
Priority to JP53073540A priority Critical patent/JPS5833205B2/en
Publication of JPS54163504A publication Critical patent/JPS54163504A/en
Publication of JPS5833205B2 publication Critical patent/JPS5833205B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To produce a conjugated diene compound useful as a raw material of synthetic rubbers, terpene compouds, etc., in high yield, suppressing the side reactions and the corrosion of the reactor, by heat treating a 1,3-diol in the presence of a boron oxy-acid in liquid phase.
CONSTITUTION: A 1,3-diol I (R1 and R2 are H, or one is H and the other is methyl) is heated at ≥130°C, pref. 140W190°C in the presence of an oxy-acid of boron, e.g. orthoboric acid, meta-boric acid, etc., or an oxygen-containing boron compound which gives an oxy-acid under the reaction conditions (e.g. B2O3, a boric acid ester of a 1W5C aliphatic alcohol) and water to afford a conjugated diene compound II (R1W3 are H, or one of the R1W3 is methyl and the other two are H). The amount of the oxy-acid or the oxygen-containing boron compound corresponds to ≥25 wt% aqueous solution of boric acid (as ortho-boric acid).
COPYRIGHT: (C)1979,JPO&Japio
JP53073540A 1978-06-15 1978-06-15 Method for producing conjugated diene Expired JPS5833205B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53073540A JPS5833205B2 (en) 1978-06-15 1978-06-15 Method for producing conjugated diene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53073540A JPS5833205B2 (en) 1978-06-15 1978-06-15 Method for producing conjugated diene

Publications (2)

Publication Number Publication Date
JPS54163504A true JPS54163504A (en) 1979-12-26
JPS5833205B2 JPS5833205B2 (en) 1983-07-18

Family

ID=13521160

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53073540A Expired JPS5833205B2 (en) 1978-06-15 1978-06-15 Method for producing conjugated diene

Country Status (1)

Country Link
JP (1) JPS5833205B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013075877A (en) * 2011-09-30 2013-04-25 Kuraray Co Ltd Method for manufacturing isoprene

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5242763A (en) * 1975-09-30 1977-04-02 Seiko Instr & Electronics Ltd Electronic alarm wristwatch

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5242763A (en) * 1975-09-30 1977-04-02 Seiko Instr & Electronics Ltd Electronic alarm wristwatch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013075877A (en) * 2011-09-30 2013-04-25 Kuraray Co Ltd Method for manufacturing isoprene

Also Published As

Publication number Publication date
JPS5833205B2 (en) 1983-07-18

Similar Documents

Publication Publication Date Title
JPS54163504A (en) Production of conjugated diene compound
JPS55139375A (en) Production of hydroxyflavan
JPS5679628A (en) Preparation of isoprene
JPS559025A (en) Preparation of polyfluoroalcohol
JPS5655345A (en) Preparation of 2-pentenoate ester
JPS54138507A (en) Preparation of diisobutene
JPS56138151A (en) Preparation of beta-chloroalanine
JPS54160335A (en) Preparation of alkylated hydroxybenzoic ester
JPS5610135A (en) Preparation of di-n-propylmalonic acid
JPS55151549A (en) Production of guanidinocaproic ester
JPS54148740A (en) Production of 3-methyl-2-cyclopentene-1-one
JPS5538303A (en) Preparation of phosphoric acid ester
JPS55102521A (en) Improved method for preparation of styrene
JPS568358A (en) Production of cysteamine mineral acid salt
JPS5441827A (en) Production of alpha-phenoxy or naphthoxy carboxylic ester
JPS5522613A (en) Preparation of 2-hydroxy-3-butenoic acid derivative
JPS5562050A (en) Preparation of substituted phenylacetohydroxamic acid
JPS5538323A (en) Preparation of s6,5'-cyclouridine
JPS5436274A (en) Preparation of propiophenone derivative
JPS5770855A (en) Preparation of methylene-bis-(4-phenylcarbamic acid ester)
JPS5740493A (en) Preparation of triorganosilyl carboxylate
JPS55111440A (en) Preparation of straight-chain higher carboxylic acid
JPS5569535A (en) Preparation of dihydro-coenzyme q analog compound
JPS56158734A (en) Preparation of p-n-alkylbenzoic acid
JPS5545640A (en) Exo-5-methyl-endo-2,3-trimethylene norbornane