WO2016071920A3 - A process for preparation of 3,4-dimethylbenzaldehyde - Google Patents

A process for preparation of 3,4-dimethylbenzaldehyde Download PDF

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Publication number
WO2016071920A3
WO2016071920A3 PCT/IN2015/000392 IN2015000392W WO2016071920A3 WO 2016071920 A3 WO2016071920 A3 WO 2016071920A3 IN 2015000392 W IN2015000392 W IN 2015000392W WO 2016071920 A3 WO2016071920 A3 WO 2016071920A3
Authority
WO
WIPO (PCT)
Prior art keywords
dimethylbenzaldehyde
formula
compound
preparation
formylating
Prior art date
Application number
PCT/IN2015/000392
Other languages
French (fr)
Other versions
WO2016071920A2 (en
Inventor
Ravi Ashwin SHROFF
Ujval Hemantkumar VAISHNAV
Mahesh Laxmikant PATIL
Vivekanand Bhaskar PILLAI
Original Assignee
Excel Industries 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 Excel Industries Ltd. filed Critical Excel Industries Ltd.
Publication of WO2016071920A2 publication Critical patent/WO2016071920A2/en
Publication of WO2016071920A3 publication Critical patent/WO2016071920A3/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/51—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
    • C07C45/516—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition involving transformation of nitrogen-containing compounds to >C = O groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/004—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reaction with organometalhalides

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

Abstract

A novel process for preparation of 3,4-dimethylbenzaldehyde has been disclosed. The process is comprising steps of (i) reacting 4- bromo-o-xylene with magnesium metal to obtain Grignard compound of formula 1; (ii) formylating the compound of formula 1 by reaction with N,N-dimethylformamide to form compound of formula 2; (iii) treating compound of formula 2 with aqueous HC1 to obtain 3,4- dimethylbenzaldehyde.
PCT/IN2015/000392 2014-11-07 2015-10-16 A process for preparation of 3,4-dimethylbenzaldehyde WO2016071920A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN3513MU2014 2014-11-07
IN3513/MUM/2014 2014-11-07

Publications (2)

Publication Number Publication Date
WO2016071920A2 WO2016071920A2 (en) 2016-05-12
WO2016071920A3 true WO2016071920A3 (en) 2016-07-21

Family

ID=55909975

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2015/000392 WO2016071920A2 (en) 2014-11-07 2015-10-16 A process for preparation of 3,4-dimethylbenzaldehyde

Country Status (1)

Country Link
WO (1) WO2016071920A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7018327B2 (en) * 2018-02-05 2022-02-10 日本曹達株式会社 Method for producing benzaldehyde derivative
WO2019197232A1 (en) * 2018-04-10 2019-10-17 Bayer Aktiengesellschaft Process for producing 2,6-dialkylphenyl acetic acids

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11279104A (en) * 1998-03-30 1999-10-12 Soda Aromatic Co Ltd Production of aromatic aldehyde
US20100210879A1 (en) * 2007-05-22 2010-08-19 Sumitomo Chemical Company, Limited Method for producing benzaldehyde compound

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11279104A (en) * 1998-03-30 1999-10-12 Soda Aromatic Co Ltd Production of aromatic aldehyde
US20100210879A1 (en) * 2007-05-22 2010-08-19 Sumitomo Chemical Company, Limited Method for producing benzaldehyde compound

Also Published As

Publication number Publication date
WO2016071920A2 (en) 2016-05-12

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