FR2353510A1 - 3 acetal derivs. of 6-halo-3-methyl-hexadienal - intermediates to 3-phenylsulphonyl-6-halo-3-methyl hex-5-ene acetal, 1-alkoxy-3-methyl 1,3-diene-5-yne and vitamin=A - Google Patents

3 acetal derivs. of 6-halo-3-methyl-hexadienal - intermediates to 3-phenylsulphonyl-6-halo-3-methyl hex-5-ene acetal, 1-alkoxy-3-methyl 1,3-diene-5-yne and vitamin=A

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Publication number
FR2353510A1
FR2353510A1 FR7616330A FR7616330A FR2353510A1 FR 2353510 A1 FR2353510 A1 FR 2353510A1 FR 7616330 A FR7616330 A FR 7616330A FR 7616330 A FR7616330 A FR 7616330A FR 2353510 A1 FR2353510 A1 FR 2353510A1
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France
Prior art keywords
methyl
halo
acetal
ene
diene
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
FR7616330A
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French (fr)
Other versions
FR2353510B1 (en
Inventor
Marc Julia
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.)
Rhone Poulenc Industries SA
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Rhone Poulenc Industries SA
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 Rhone Poulenc Industries SA filed Critical Rhone Poulenc Industries SA
Priority to FR7616330A priority Critical patent/FR2353510A1/en
Publication of FR2353510A1 publication Critical patent/FR2353510A1/en
Application granted granted Critical
Publication of FR2353510B1 publication Critical patent/FR2353510B1/fr
Granted legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C43/00—Ethers; Compounds having groups, groups or groups
    • C07C43/30—Compounds having groups

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

Abstract

Acetals of formula (I) are new (where X is halo; R is 1-4C alkyl). The cpds. are intermediates to vitamin A. A typical cpd., 1,1-dimethoxy-3-methyl-6-chlorohexa-3,5-diene was prepd. by desulphonation of 1,1-dimethoxy-3-methyl-3-phenyl-sulphonyl-6-chlorohex-5-ene with NaOH in dimethylacetamide at 0 degrees C, then extracting with pentane.
FR7616330A 1976-05-31 1976-05-31 3 acetal derivs. of 6-halo-3-methyl-hexadienal - intermediates to 3-phenylsulphonyl-6-halo-3-methyl hex-5-ene acetal, 1-alkoxy-3-methyl 1,3-diene-5-yne and vitamin=A Granted FR2353510A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7616330A FR2353510A1 (en) 1976-05-31 1976-05-31 3 acetal derivs. of 6-halo-3-methyl-hexadienal - intermediates to 3-phenylsulphonyl-6-halo-3-methyl hex-5-ene acetal, 1-alkoxy-3-methyl 1,3-diene-5-yne and vitamin=A

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7616330A FR2353510A1 (en) 1976-05-31 1976-05-31 3 acetal derivs. of 6-halo-3-methyl-hexadienal - intermediates to 3-phenylsulphonyl-6-halo-3-methyl hex-5-ene acetal, 1-alkoxy-3-methyl 1,3-diene-5-yne and vitamin=A

Publications (2)

Publication Number Publication Date
FR2353510A1 true FR2353510A1 (en) 1977-12-30
FR2353510B1 FR2353510B1 (en) 1979-04-06

Family

ID=9173770

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7616330A Granted FR2353510A1 (en) 1976-05-31 1976-05-31 3 acetal derivs. of 6-halo-3-methyl-hexadienal - intermediates to 3-phenylsulphonyl-6-halo-3-methyl hex-5-ene acetal, 1-alkoxy-3-methyl 1,3-diene-5-yne and vitamin=A

Country Status (1)

Country Link
FR (1) FR2353510A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237438A2 (en) * 1986-03-14 1987-09-16 Rhone-Poulenc Sante Process for the preparation of polyene aldehydes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237438A2 (en) * 1986-03-14 1987-09-16 Rhone-Poulenc Sante Process for the preparation of polyene aldehydes
FR2595690A1 (en) * 1986-03-14 1987-09-18 Rhone Poulenc Sante PROCESS FOR THE PREPARATION OF POLYENIC ALDEHYDES
EP0237438A3 (en) * 1986-03-14 1988-10-12 Rhone-Poulenc Sante Process for the preparation of polyene aldehydes

Also Published As

Publication number Publication date
FR2353510B1 (en) 1979-04-06

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