METHOD OF PRODUCING FORMYLALKENYL=ALKOXYMETHYL=ETHER COMPOUND, AND METHOD OF PRODUCING CONJUGATED DIENE COMPOUND USING THE SAME

Japanese Patent JP2021155373

A

To produce a formylalkenyl=alkoxymethyl=ether compound in high purity and high yield by suppressing deprotection of an alkoxymethyl group of a dialkoxyalkenyl=alkoxymethyl=ether compound, and selectively hydrolyzing only acetal.SOLUTION: The present invention provides a method of producing a formylalkenyl=alkoxymethyl=ether compound (2) represented by the general formula (2): R3CH2OCH2O(CH2)aCH=CHCHO (2) where, in the formula, R3 and a are the same as defined hereunder, by hydrolyzing a dialkoxyalkenyl=alkoxymethyl=ether compound represented by the general formula (1): R3CH2OCH2O(CH2)aCH=CHCH(OR1)(OR2) (1) where, in the formula, R1 and R2 are each independently a univalent 1-15C hydrocarbon group, or a bivalent 2-10C hydrocarbon group as R1-R2 generated by mutually bonding R1 and R2, R3 is a hydrogen atom, a 1-9C n-alkyl group or a phenyl group, a is an integer of 1-10, in the presence of acid while removing a generated alcohol compound.SELECTED DRAWING: None

MIYAKE HIROKI
KANAO TAKESHI
YAMASHITA MIYOSHI

JP2020059025A

October 07, 2021

March 27, 2020

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SHINETSU CHEMICAL CO

C07C45/42; C07C29/10; C07C33/02; C07C41/30; C07C43/15; C07C47/277; C07C67/08; C07C69/145

JP2009132647A	2009-06-18
JP2002060366A	2002-02-26
JP2002030021A	2002-01-29
JP2018177746A	2018-11-15
JP2017193493A	2017-10-26

AGRICULTURAL AND BIOLOGICAL CHEMISTRY, vol. 49, JPN6023003161, 1985, pages 141 - 148, ISSN: 0005098337

Mitsuo Matsui
Hiroshi Murakami
Yukari Kato
Hidefumi Kawamura

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